Datenblatt für TPS25820, TPS25821 von Texas Instruments

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Control Signals

Power Switch

Status Signals

Type-C DFP

Status Signals

USB Type-C

Connector

VBUS

REF

GND

OUT

FAULT

CC1

CC2

SINK

POL

Thermal Pad

TPS25820/21

CHG

4.5 V ± 5.5V

Bus Power

Product

Folder

Order

Now

Technical

Documents

Tools &

Software

Support &

Community

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

TPS25820, TPS25821 USB Type-C

1.5-A Source Controller and Power Switch

1 Features

1• USB Type-CTM Rel. 1.3 Compliant Source

Controller

• STD/1.5-A Current Capability Advertisement on

CC Lines

• Connector Attach/Detach Detection

• Super Speed Polarity Determination

• VBUS and VCONN (TPS25820) Application and

Discharge with Internal Fixed Current Limit

• 1.0-µA (typ) Operating Current with Nothing

Attached to the Type-C Connector

• 64-mΩ(typ) High-Side OUT MOSFET

• Meets USB Current-Limiting Requirements

– 1.7-A OUT Current Limit with ±7% Accuracy

– Fast Overcurrent Response – 1.5 μs (Typical)

• CC1 and CC2 ±8-kV Contact and ±15-kV Air

Discharge ESD Rating (IEC-61000-4-2)

• IEC/UL Certificates

– US-33101-UL: IEC 60950-1:2005;

AMD1:2009, AMD2:2013

– US-33102-UL: IEC 62368-1:2014

2 Applications

• USB 2.0 or 3.x Type-C Host and Hub Ports

• Notebook/Desktop PCs and Tablets

• LCD Monitor/Docking Station and Charging

Cradles

• Type-C USB Wall Chargers, Power Bank, and

CLAs

• Set-Top Box and Audio/Video Systems

3 Description

The TPS25820/21 is a USB Type-C source controller

with an integrated 1.5 A-rated USB power switch. The

TPS25820/21 monitors the Type-C configuration

channel (CC) lines to determine when a USB sink is

attached. If a sink is attached, the TPS25820/21

applies power to VBUS and communicates the

selectable VBUS current sourcing capability to the sink

via the pass through CC line. If the sink is attached

with an electronically marked cable, the TPS25820

also applies VCONN power to the cable VCONN pin. The

TPS25821 does not apply VCONN power and is for

functions where VCONN is not needed such as USB

2.0 and data-less charging implementations.

The TPS25820/21 draws 1.0 μA (typ) when nothing is

attached. The FAULT output signals when the switch

is in an overcurrent or overtemperature condition. The

SINK output signals when a sink is attached and the

POL output signals the polarity of the cable super-

speed lines.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)

TPS25820 WSON (12) 3.00 mm x 2.00 mm

TPS25821 WSON (12) 3.00 mm x 2.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Device Comparison

PART NUMBER VCONN

TPS25820 Yes

TPS25821 No

Simplified Schematic

l TEXAS INSTRUMENTS

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

Table of Contents

1 Features.................................................................. 1

2 Applications ........................................................... 1

3 Description ............................................................. 1

4 Revision History..................................................... 2

5 Pin Configuration and Functions......................... 3

6 Specifications......................................................... 4

6.1 Absolute Maximum Ratings ...................................... 4

6.2 ESD Ratings ............................................................ 4

6.3 Recommended Operating Conditions....................... 4

6.4 Thermal Information.................................................. 5

6.5 Electrical Characteristics........................................... 5

6.6 Switching Characteristics.......................................... 7

6.7 Typical Characteristics.............................................. 9

7 Detailed Description............................................ 10

7.1 Overview ................................................................. 10

7.2 Functional Block Diagrams ..................................... 12

7.3 Feature Description................................................. 13

7.4 Device Functional Modes........................................ 15

8 Application and Implementation ........................ 16

8.1 Application Information............................................ 16

8.2 Typical Applications ................................................ 16

9 Power Supply Recommendations...................... 22

10 Layout................................................................... 23

10.1 Layout Guidelines ................................................. 23

10.2 Layout Example .................................................... 24

11 Device and Documentation Support ................. 25

11.1 Device Support .................................................... 25

11.2 Documentation Support ....................................... 25

11.3 Related Links ........................................................ 25

11.4 Receiving Notification of Documentation Updates 25

11.5 Community Resources.......................................... 25

11.6 Trademarks........................................................... 25

11.7 Electrostatic Discharge Caution............................ 25

11.8 Glossary................................................................ 26

12 Mechanical, Packaging, and Orderable

Information ........................................................... 26

4 Revision History

Changes from Revision B (February 2019) to Revision C Page

• Added US-33102-UL: IEC 62368-1:2014 to the Features section......................................................................................... 1

Changes from Revision A (December 2017) to Revision B Page

• Added the IEC/UL Certificate No. to the Features section..................................................................................................... 1

Changes from Original (November 2017) to Revision A Page

• Changed TPS25821 from Product Preview to Production Data ........................................................................................... 1

*9 TEXAS INSTRUMENTS O

1IN 12 OUT

2IN 11 CC2

3CHG 10 GND

4EN 9 CC1

5FAULT 8 REF

6SINK 7 POL

Not to scale

Thermal

Pad

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

5 Pin Configuration and Functions

DSS Package

12-Pin WSON

Top View

Pin Functions

PIN I/O DESCRIPTION

NAME NUMBER

IN 1, 2 I Device input supply. VBUS internal power switch input supply. VCONN internal power switch input supply for the

TPS25820.

CHG 3 I Charge logic input to select between standard USB or 1.5-A Type-C current sourcing ability.

EN 4 I Logic input to turn the device on and off.

FAULT 5 O Open-drain logic output that asserts when the device is in overtemperature and/or VBUS is in current limit condition.

SINK 6 O Open-drain logic output that asserts when a Type-C Sink is identified on the CC lines.

POL 7 O Open-drain logic output that signals which Type-C CC pin is connected to the cable CC line. This gives the

information needed to mux the super speed lines. Asserted when the CC2 pin is connected to the cable CC line.

REF 8 I Analog input used to make a current reference. Connect a 0.5%, 100-ppm, 100-kΩresistor between this pin and

GND.

CC1 9 I/O Analog input/output that connects to the Type-C receptacle CC1 pin.

GND 10 – Ground

CC2 11 I/O Analog input/output that connects to the Type-C receptacle CC2 pin.

OUT 12 O VBUS power switch output.

Thermal Pad – – Thermal pad on bottom of package.

l TEXAS INSTRUMENTS

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended

Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range, voltages are respect to GND (unless otherwise noted) (1)

MIN MAX UNIT

Pin voltage, V IN, EN, CHG, REF, OUT, FAULT, CC1, CC2, SINK, POL –0.3 6 V

Pin positive source current, ISRC OUT, REF, CC1, CC2 Internally

limited A

Pin positive sink current, ISNK

OUT (while applying VBUS) 2.5 A

CC1, CC2 (while TPS25820 applying VCONN) 1 A

FAULT, SINK, POL Internally

limited mA

Operating junction temperature, TJ–40 180 °C

Storage temperature range, Tstg –65 150 °C

(1) Electrostatic discharge (ESD) to measure device sensitivity/immunity to damage caused by assembly line electrostatic discharges into

the device.

(2) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(3) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

(4) Surges per IEC61000-4-2, 1999 applied between CC1/CC2 and output ground of the TPS25820EVM-835.

6.2 ESD Ratings

VALUE UNIT

V(ESD) (1) Electrostatic

discharge

Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(2) ±2000

Charged-device model (CDM), per JEDEC specification JESD22-C101(3) ±500

IEC61000-4-2 contact discharge, CC1 and CC2(4) ±8000

IEC61000-4-2 air-gap discharge, CC1 and CC2(4) ±15000

6.3 Recommended Operating Conditions

Voltages are with respect to GND (unless otherwise noted)

MIN NOM MAX UNIT

VISupply voltage IN 4.5 5.5 V

VIInput voltage EN, CHG 0 5.5 V

VIH High-level input voltage EN, CHG 2 V

VIL Low-level voltage EN, CHG 0.8 V

VPU Pull-up voltage Used on FAULT, SINK, POL 0 5.5 V

ISRC Positive source current OUT 1.5 A

CC1 or CC2 when supplying VCONN 250 mA

ISNK Positive sink current (100 ms

moving average)

SINK, POL 5 mA

FAULT 10

ISNK_PULSE Positive repetitive pulse sink current FAULT, SINK, POL Internally

Limited mA

TJOperating junction temperature –40 125 °C

l TEXAS INSTRUMENTS

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

6.4 Thermal Information

THERMAL METRIC(1)

TPS25820,

TPS25821 UNIT

DSS (WSON)

12 PINS

RθJA Junction-to-ambient thermal resistance 57.7 °C/W

RθJC(top) Junction-to-case (top) thermal resistance 53.7 °C/W

RθJB Junction-to-board thermal resistance 24.1 °C/W

ψJT Junction-to-top characterization parameter 1.6 °C/W

ψJB Junction-to-board characterization parameter 24.1 °C/W

RθJC(bot) Junction-to-case (bottom) thermal resistance 7.4 °C/W

(1) Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account

separately.

6.5 Electrical Characteristics

–40°C ≤TJ≤125°C, 4.5 V ≤VIN ≤5.5 V, VEN = VCHG = VIN, RREF = 100 kΩ. Typical values are at 25°C. All voltages are with

respect to GND. IOUT and IOS defined positive out of the indicated pin (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

OUT - POWER SWITCH

RDS(on) On resistance(1)

TJ= 25°C, IOUT = 1.5 A 64 70

mΩ–40°C ≤TJ≤85°C, IOUT = 1.5 A 64 85

–40°C ≤TJ≤125°C, IOUT = 1.5 A 64 98

IREV OUT to IN reverse leakage current VOUT = 5.5 V, 0 ≤VIN ≤5.5 V, VEN = 0 V,

–40°C ≤TJ≤85°C, measure IIN 0 3 µA

OUT - CURRENT LIMIT

IOS Short circuit current limit (1) 1.6 1.72 1.84 A

RREF = 10 Ω4.0

OUT - DISCHARGE

Discharge resistance VOUT = 4 V 400 500 600 Ω

Bleed discharge resistance VOUT = 4 V, No Sink termination on CC

lines, time > tw_OUT_DCHG 90 150 250 kΩ

VTH Rising threshold for not

discharged 800 mV

REF

IOS Short circuit current RREF = 10 Ω9.5 17.5 µA

VOOutput voltage 0.78 0.8 0.82 V

FAULT

VOL Output low voltage I FAULT = 1 mA 250 mV

IOFF Off-state leakage V FAULT = 5.5 V 1 µA

CC1/CC2 - VCONN POWER SWITCH (TPS25820)

RDS(on) On resistance

TJ= 25°C, ICCx = 250 mA 480 530

mΩ-40°C ≤TJ≤85°C, ICCx = 250 mA 480 645

-40°C ≤TJ≤125°C, ICCx = 250 mA 480 755

CC1/CC2 - VCONN POWER SWITCH - CURRENT LIMIT (TPS25820)

IOS Short circuit current limit(1) 315 370 425 mA

RREF = 10 Ω1000

l TEXAS INSTRUMENTS

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

Electrical Characteristics (continued)

–40°C ≤TJ≤125°C, 4.5 V ≤VIN ≤5.5 V, VEN = VCHG = VIN, RREF = 100 kΩ. Typical values are at 25°C. All voltages are with

respect to GND. IOUT and IOS defined positive out of the indicated pin (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

(2) These parameters are provided for reference only and do not constitute part of TI’s published specifications for purposes of TI’s product

warranty.

CC1/CC2 – CONNECT MANAGEMENT

ISRC Sourcing current

VCHG = 0 V, 0 V ≤VCCx ≤1.5 V, after V SINK

= 0 V 73 80 85

µA0 V ≤VCCx ≤1.5 V, after V SINK = 0 V 168 180 190

VCHG = 0 V or VIN, 0 V ≤VCCx ≤1.5

V, before V SINK = 0 V 64 80 96

IREV Reverse leakage current

CCx is the CC pin under test, CCy is the

other CC pin. VCCx = 5.5 V, CCy floating,

VEN = 0 V or 0 V ≤VIN ≤5.5 V, –40°C ≤TJ

≤85°C, IREV is current into CCx pin.

0 5

µA

CCx is the CC pin under test, CCy is the

other CC pin. VCCx = 5.5 V, CCy = 0

V, –40°C ≤TJ≤85°C, IREV is current

into CCx pin.

5 10

CC1/CC2 – CONNECT MANAGEMENT – VCONN DISCHARGE MODE

Discharge resistance (TPS25820) CC pin that was providing VCONN before

detach: VCCX = 4 V 400 500 600 Ω

VTH Falling threshold for discharged

(TPS25820) CC pin that was providing VCONN before

detach 570 600 630 mV

Discharged threshold hysteresis

(TPS25820) 100 mV

SINK, POL

VOL Output low voltage ISNK_PIN = 1 mA 250 mV

IOFF Off-state leakage VPIN = 5.5 V 1 µA

EN, CHG - LOGIC INPUTS

VTH Rising threshold voltage for output

logic change 1.45 1.8 V

VTH Falling threshold voltage for output

logic change 1.00 1.35 V

Hysteresis(2) 100 mV

IIN Input current VPIN = 0 V or 5.5 V –0.5 0.5 µA

OVER TEMPERATURE SHUT DOWN

TTH_OTSD2 Rising threshold temperature for

device shutdown 155 °C

Hysteresis(2) 20 °C

TTH_OTSD1

Rising threshold temperature for

OUT/ VCONN switch shutdown in

current limit 135 °C

Hysteresis(2) 20 °C

VTH Rising threshold voltage for

not UVLO 3.9 4.1 4.3 V

Hysteresis(2) 100 mV

l TEXAS INSTRUMENTS

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

Electrical Characteristics (continued)

–40°C ≤TJ≤125°C, 4.5 V ≤VIN ≤5.5 V, VEN = VCHG = VIN, RREF = 100 kΩ. Typical values are at 25°C. All voltages are with

respect to GND. IOUT and IOS defined positive out of the indicated pin (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Disabled supply current VEN = 0 V, –40°C ≤TJ≤85°C 1

µA

Enabled supply current with CC

lines open –40°C ≤TJ≤85°C 1 4

Enabled supply current with

dangling Ra cable attached 150 195

Enabled supply current with Sink

attached via cable that is

electronically marked (includes IN

current that provides the CC

output current to the sink Rd

resistor)

VCHG = 0 V 232 275

332 380

Enabled supply current with Sink

attached via cable that is not

electronically marked (includes IN

current that provides the CC

output current to the sink Rd

resistor)

VCHG = 0 V 210 250

310 355

6.6 Switching Characteristics

–40°C ≤TJ≤125°C, 4.5 V ≤VIN ≤5.5 V, VEN = VCHG = VIN, RREF = 100 kΩ. Typical values are at 25°C. All voltages are with

respect to GND. IOUT and IOS defined positive out of the indicated pin (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

OUT - POWER SWITCH

trOutput voltage rise time VIN = 5 V, CL= 1 µF, RL= 100 Ω

(measure between 10% and 90% of

final value)

0.5 0.8 1.2 ms

tfOutput voltage fall time 0.2 0.3 0.4 ms

ton Output voltage turn-on time VIN = 5 V, CL= 1 µF, RL= 100 Ω2.1 3.2 4.5 ms

toff Output voltage turn-off time 0.8 1.3 1.9 ms

tw_OUT_DCHG RDCHG application time at OUT turn

off

VOUT = 1 V, time ISNK_OUT > 1 mA

after Sink termination removed from

CC lines 169 262 361 ms

OUT - CURRENT LIMIT

tiOS Current limit response time to short

circuit VIN - VOUT = 1 V, RL= 10 mΩ(see

Figure 1)1.5 4 µs

FAULT

tDEGA Asserting deglitch due to overcurrent 5.6 8.2 10.6 ms

tDEGA Asserting deglitch due to

overtemperature in current limit 0 ms

tDEGD De-asserting deglitch 5.6 8.2 10.6 ms

CC1/CC2 - VCONN POWER SWITCH (TPS25820)

trOutput voltage rise time VIN2 = 5 V, CL= 1 µF, RL= 100 Ω0.13 0.22 0.3 ms

tfOutput voltage fall time 0.18 0.22 0.26 ms

ton Output voltage turn-on time VIN2 = 5 V, CL= 1 µF, RL= 100 Ω1.4 2.2 3.2 ms

toff Output voltage turn-off time 0.25 0.33 0.4 ms

Minimum VCONN discharge time TPS25820 42 65 90 ms

CC1/CC2 - VCONN POWER SWITCH - CURRENT LIMIT (TPS25820)

tres Current limit response time to short

circuit VIN – VCCx = 1 V, R = 10 mΩ(see

Figure 1)1 4 µs

SINK, POL

tDEGA Asserting deglitch 100 150 200 ms

tDEGD De-asserting deglitch 7.9 12.5 17.7 ms

l TEXAS INSTRUMENTS

tios

IOS

IOUT

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

Figure 1. Output Short Circuit Parameter Diagram

l TEXAS INSTRUMENTS 180 350 sec

TJ - Junction Temperature (oC)

RDS(ON) - ON Resistance (m:)

-40 -20 0 20 40 60 80 100 120 140

D005

TJ - Junction Temperature (oC)

RDS(ON) - ON Resistance (m:)

-40 -20 0 20 40 60 80 100 120 140

360

390

420

450

480

510

540

570

600

630

660

690

D006

TJ - Junction Temperature (oC)

IREV - Reverse Leakage Current (PA)

-40 -20 0 20 40 60 80 100 120 140

0.02

0.04

0.06

0.08

0.1

0.12

0.14

D001

TJ - Junction Temperature (oC)

II - Enable Supply Current (PA)

-40 -20 0 20 40 60 80 100 120 140

300

305

310

315

320

325

330

335

340

345

350

D004

Sink attached with passive cable

Sink attached with active cable

TJ - Junction Temperature (oC)

Sourcing Current (PA)

-40 -20 0 20 40 60 80 100 120 140

100

120

140

160

180

D001

SINK 0.5 A/0.9 A (USB default)

SINK 1.5A

TJ - Junction Temperature (oC)

ILIM - Limit Current (mA)

-40 -20 0 20 40 60 80 100 120 140

0.2

0.4

0.6

0.8

1.2

1.4

1.6

1.8

D002

VBUS ILIM

VCONN ILIM

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

6.7 Typical Characteristics

Figure 2. CC Sourcing Current to SINK vs Temperature Figure 3. ILIM for VBUS and VCONN vs Temperature

Device = Disabled; (VOUT-VIN) =6.5V

Figure 4. OUT Reverse Leakage Current vs Temperature Figure 5. Supply Current with SINK vs Temperature

Figure 6. VBUS Current Limiting Switch On Resistance vs

Temperature Figure 7. VCONN Current Limiting Switch On Resistance vs

Temperature

l TEXAS INSTRUMENTS

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

7 Detailed Description

7.1 Overview

The TPS25820 and TPS25821 devices are highly integrated USB Type-C source controllers with built-in power

switches developed for the USB Type-C connector and cable. The TPS25820 supports VCONN, while the

TPS25821 does not. The devices provide all of the functionality needed to support a USB Type-C DFP in a

system where USB power delivery (PD) source capabilities (for example, VBUS > 5 V) are not implemented. The

devices are designed to be compliant to the USB Type‑C specification, release 1.3 which added new

requirements to discharge VCONN.

7.1.1 USB Type C Basic

For a detailed description of the Type-C spec refer to the USB-IF website to download the latest released

version. Some of the basic concepts of the Type-C spec that pertains to understanding the operation of the

TPS25820/21 (a Downward Facing Port, DFP device) are described as follows.

USB Type-C removes the need for different plug and receptacle types for host and device functionality. The

Type-C receptacle replaces both Type-A and Type-B receptacles since the Type-C cable is plug-able in either

direction between host and device. A host-to-device logical relationship is maintained via the configuration

channel (CC). Optionally hosts and devices can be either providers or consumers of power when USB PD

communication is used to swap roles.

All USB Type-C ports operate in one of below three data modes:

• Host mode: the port can only be host (also provider of power)

• Device mode: the port can only be device (also consumer of power)

• Dual-Role mode: the port can be either host or device

Port types:

• DFP (Downstream Facing Port): Host, specifically associated with flow of data (Host or Hub) in a USB link

• Source: Port that asserts Rp (pull-up resistor) on CC pin and provides power on VBUS when attached to a

Sink (device). At power-up a DFP is a source.

• UFP (Upstream Facing Port): Device, specifically associated with flow of data (device) in a USB link

• Sink: Port that asserts Rd (pull-down) on CC pin and consumes power from VBUS when attached. At power-

up a UFP is a sink

• DRP (Dual-Role Port): Host or Device

Valid Source-to-Sink connections:

•Table 1 describes valid Source-to-Sink connections

• Source to Source or Sink to Sink have no function

Table 1. Valid Source-to-Sink Connections

POWER ROLES SOURCE ONLY SINK ONLY DUAL ROLE POWER (DRP)

Source Only Not allowed Allowed Allowed

Sink Only Allowed Not allowed Allowed

Dual Role Power

(DRP) Allowed Allowed Allowed

7.1.2 Configuration Channel

The function of the configuration channel is to detect connections and configure the interface across the USB

Type-C cables and connectors.

Functionally the Configuration Channel (CC) is used to serve the following purposes:

• Detect connect to the USB ports

• Resolve cable orientation and twist connections to establish USB data bus routing

• Establish Source and Sink roles between two connected ports

• Discover and configure power: USB Type-C current modes or USB Power Delivery

• Discovery and configure optional Alternate and Accessory modes

l TEXAS INSTRUMENTS Detect valid connection Establish USB power method USB Device Enumeration connecuon

CC Rp

RaRa

Cable

Source monitors for

connection

Source monitors for

connection Sink monitors for

connection

Sink monitors for

connection

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

• Enhances flexibility and ease of use

Typical flow of DFP to UFP configuration is shown in Figure 8:

Figure 8. DFP to UFP Connect Flow

7.1.3 Detecting a Connection

Sources and DRPs fulfill the role of detecting a valid connection over USB Type-C. Figure 9 shows a Source to

Sink connection made with Type-C cable. As shown in Figure 9, the detection concept is based on being able to

detect terminations in the product which has been attached. A pull-up and pull-down termination model is used. A

pull-up termination can be replaced by a current source.

• In the Source-Sink connection the Source monitors both CC pins for a voltage lower than the unterminated

voltage.

• A Sink advertises Rd on both its CC pins (CC1 and CC2).

• A powered cable advertises Ra on its VCONN pin.

Figure 9. Source-Sink Connection Mechanism

l TEXAS INSTRUMENTS

Charge

Pump

Current

Limit

OTSD

Thermal

Sense

IN Current Sense

Current Sense

OUT

CC1

CC2

Gate

Control

FAULT

SINK

POL

Control

Logic

Monitor

CHG

GND

REF

UVLO

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

7.2 Functional Block Diagrams

Figure 10. TPS25820 Functional Block Diagram

l TEXAS INSTRUMENTS

Charge

Pump

Current

Limit

OTSD

Thermal

Sense

IN Current Sense

OUT

CC1

CC2

Gate

Control

FAULT

SINK

POL

Control

Logic

Monitor

CHG

GND

REF

UVLO

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

Functional Block Diagrams (continued)

Figure 11. TPS25821 Functional Block Diagram

7.3 Feature Description

Both the TPS25820 and TPS25821 are source (i.e. DFP) Type-C port controllers with integrated power switches

for VBUS. The TPS25820 also has integrated power switches for VCONN. Refer to the functional block diagrams

(Figure 10 and Figure 11). The TPS25820/21 devices do not support BC1.2 charging modes, because it does not

interact with USB D+ and D– data lines. However supporting DCP mode of BC1.2 can be easily accomplished in

data-less ports like wall chargers and CLAs by simply tying a 100-Ωresistor between the D+ and D- pins of the

Type-C connector.

The TPS25820 has a built-in VCONN current limiting switch and can be used to implement USB 3.1 DFP, whereas

the TPS25821 does not implement a VCONN current limiting switch hence is used in the implementation in USB

2.0 DFP ports or as a USB source only port. Other than the VCONN current limiting switch there are no other

functional differences between the TPS25820 and TPS25821.

7.3.1 Configuration Channel Pins CC1 and CC2

The TPS25820/21 devices have two pins, CC1 and CC2 that serve to detect an attachment to the port and

resolve cable orientation. These pins are also used to establish the current broadcast to a valid sink and

configure VCONN (TPS25820 only).

l TEXAS INSTRUMENTS

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

Feature Description (continued)

(1) POL and SINK are open drain outputs; pull high with 100 kΩto IN when used. Tie to GND or leave open when not used.

(2) TPS25820 Only

Table 2 lists the TPS25820/21 response to various attachments to its port.

Table 2. Response to Attachments

TPS25820/21 TYPE-C PORT CC1 CC2

TPS25820/21 RESPONSE(1)

OUT VCONN(2)

On CC1 or CC2 POL SINK

Nothing Attached OPEN OPEN OPEN NO Hi-Z Hi-Z

Sink Connected Rd OPEN IN NO Hi-Z LOW

Sink Connected OPEN Rd IN NO LOW LOW

Powered Cable/No Sink Connected OPEN Ra OPEN NO Hi-Z Hi-Z

Powered Cable/No Sink Connected Ra OPEN OPEN NO Hi-Z Hi-Z

Powered Cable/Sink Connected Rd Ra IN CC2 Hi-Z LOW

Powered Cable/Sink Connected Ra Rd IN CC1 LOW LOW

Debug Accessory Connected Rd Rd OPEN NO Hi-Z Hi-Z

Audio Adapter Accessory Connected Ra Ra OPEN NO Hi-Z Hi-Z

7.3.2 Current Capability Advertisement and VBUS Overload Protection

The TPS25820/21 supports two Type-C current advertisements as defined by the USB Type-C standard. Current

broadcast to a connected Sink is controlled by the CHG pin. For each broadcast level the device protects itself

from a Sink that draws current in excess of the port’s USB Type-C Current advertisement by setting the current

limit as shown in Table 3.

Table 3. USB Type-C Current Advertisement

CHG CC CAPABILITY BROADCAST CURRENT LIMIT

0 STD (500 mA for USB 2.0 port) 1.67 A

0 STD (900 mA for USB 3.1 port) 1.67 A

1 1.5 A 1.67 A

Under overload conditions, the internal current-limit regulator limits the output current on the OUT pin as shown

in the Electrical Characteristics table. When an overload condition is present, the device maintains a constant

output current, with the output voltage determined by (IOS x RLOAD). Two possible overload conditions can occur.

The first overload condition occurs when either: 1) input voltage is first applied, enable is true, and a short circuit

is present (load which draws IOUT > IOS), or 2) input voltage is present and the TPS25820/21 is enabled into a

short circuit. The output voltage is held near zero potential with respect to ground and the TPS25820/21 ramps

the output current to IOS.

In either case the TPS25820/21 will limit the load current to IOS until the overload condition is removed or the

device begins to thermal cycle. This is demonstrated in Figure 16 where the device was enabled into a short, and

subsequently cycles current off and on as the thermal protection engages.

7.3.3 FAULT Response

The FAULT pin is an open drain output that asserts (active low) after a deglitch time (tDEGA) when device OUT

current exceeds its programmed value and/or overtemperature threshold is crossed. The FAULT signal remains

asserted until the fault condition is removed for tDEGD. The TPS25820/21 are designed to eliminate false

overcurrent fault reporting by using an internal deglitch circuit.

Connect FAULT with a 100-kΩpull-up resistor to IN. FAULT can be left open or tied to GND when not used.

l TEXAS INSTRUMENTS

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

7.3.4 Thermal Shutdown

The device has two internal overtemperature shutdown thresholds, TTH_OTSD1 and TTH_OTSD2, to protect the

internal FET from damage and overall safety of the system. When the device temperature exceeds TTH_OTSD1,

any switch in current limit (OUT switch or VCONN switch) is disabled. The device does auto-retry recovery by re-

enabling the switch when die temperature decreases by 20°C. When TTH_OTSD2 is exceeded all open drain

outputs are left open and the device is disabled such that minimum power/heat is dissipated. The device does

auto-retry recovery by attempting to power-up when die temperature decreases by 20°C.

7.3.5 REF

A 100-kΩresistor is connected from this pin to GND. This pin sets the reference current required to bias the

internal circuitry of the device. The overload current limit tolerance and CC currents depend upon the accuracy of

this resistor. A ±0.5% low temp CO resistor, or better, yields the best current limit accuracy and overall device

performance. If the CC capability broadcast will only be set to STD (CHG pulled low) then up to a ±10% resistor

may be used as long as the additional error in the current limit is acceptable.

7.3.6 Plug Polarity Detection

Reversible Type-C plug orientation is reported by the POL pin when a Sink is connected, however when no Sink

is attached, POL remains de-asserted irrespective of cable plug orientation. Table 2 describes the POL state

based on which device CC pin detects VRd from an attached Sink pull-down. In a typical USB 3.x DFP port, this

pin controls a superspeed data MUX for proper data connectivity irrespective of plug orientation. See Figure 20.

7.3.7 Sink Attachment Indicator

The attachment of a Type-C sink is reported by SINK. See Table 2.

7.3.8 Device Enable Control

The logic enable pin controls the power switch and device supply current. The supply current is reduced to less

than 1 μA when a logic low is present on EN. The EN pin provides a convenient way to turn on or turn off the

device while it is powered. When this pin is pulled high, the device is turned on or enabled. When the device is

disabled (EN pulled low), the internal FETs tied to IN are disconnected, all open drain outputs are left open (Hi-

Z), and the CC1/CC2 monitor block is turned off. The EN pin should not be left floating.

7.3.9 Undervoltage Lockout (UVLO)

The undervoltage lockout (UVLO) circuit disables the power switch until the input voltage reaches the UVLO turn-

on threshold. Built-in hysteresis prevents unwanted on/off cycling due to input voltage droop during turn on.

7.4 Device Functional Modes

The TPS25820/21 is a Type-C controller with integrated power switch that supports all Type-C functions in a

downstream facing port (DFP). It is also used to manage current advertisement and protection to a connected

sink and active cable. The device starts its operation by monitoring the IN bus. When IN exceeds the

undervoltage lockout threshold, the device samples the EN pin. A high level on this pin enables the device and

normal operation begins. Having successfully completed its start-up sequence, the device now actively monitors

its CC1 and CC2 pins for attachment to a sink. When a sink is detected on either the CC1 or CC2 pin the internal

MOSFET starts to turn-on after the required de-bounce time is met. The internal MOSFET starts conducting and

allows current to flow from IN to OUT. For the TPS25820 if Ra is detected on the other CC pin (not connected to

sink), VCONN is applied to allow current to flow from IN to the CC pin connected to Ra. For a complete listing of

various device operational modes refer to Table 2.

‘5‘ TEXAS INSTRUMENTS

4.5V t 5.5V

100 k:

(1%)

3 x 100 k:

(Optional)

Control Signals

Bus Power

Power Switch

Status Signal

Type-C DFP

Status Signals

USB Type-C

Connector

VBUS

TPS25820/21

CHG

REF

GND

OUT

FAULT

CC1

CC2

SINK

POL

Power Pad

10µF

0.1µF

47µF

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The TPS25820/21 are Type-C source controllers. The TPS25820 supports all Type-C DFP required functions to

support a USB 3.x port and the TPS25821 supports all required functions for a USB 2.0 DFP. The TPS25820/21

only applies power to VBUS when it detects a sink is attached and removes power when it detects the sink is

detached. The device exposes its identity via its CC pin advertising its current capability based on the CHG pin

setting. The TPS25820/21 also limits its advertised current internally and provides robust protection against faults

on the system VBUS power rail.

After a connection is established by the TPS25820/21, the TPS25820/21 device is capable of providing VCONN to

power circuits in the cable plug on the CC pin that is not connected to the CC wire in the cable. VCONN is

internally current limited. The TPS25820/21 do not support Type-C optional accessory modes (Ra/Ra and Rd/Rd

in Table 2).

The following design procedure can be used to implement a full featured Type-C source.

8.2 Typical Applications

8.2.1 Type-C Source Port Implementation without BC 1.2 Support

Figure 12 shows a minimal Type-C source implementation capable of supporting 5-V and 1.5-A charging.

Figure 12. Type-C Source Port Implementation without BC 1.2 Support

8.2.1.1 Design Requirements

8.2.1.1.1 Input and Output Capacitance Considerations

Input and output capacitance improves the performance of the device. The actual capacitance should be

optimized for the particular application. For all applications, a 0.1-μF or greater ceramic bypass capacitor

between IN and GND is recommended as close to the device as possible for local noise decoupling.

All protection circuits, including those of the TPS25820/21 device, have the potential for input voltage overshoots

and output voltage undershoots. Input voltage overshoots can be caused by either of two effects. The first cause

is an abrupt application of input voltage in conjunction with input power-bus inductance and input capacitance

when the IN pin is high-impedance (before OUT turn-on, i.e. not connected to a Type-C sink device).

Theoretically, the peak voltage is 2 times the applied voltage. The second cause is due to the abrupt reduction of

l TEXAS INSTRUMENTS

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

Typical Applications (continued)

output short-circuit current when the device turns off and energy stored in the input inductance drives the input

voltage high. Input voltage droops may also occur with large load steps and as the output is shorted. Applications

with large input inductance (for instance, connecting the evaluation board to the bench power supply through

long cables) may require large input capacitance to prevent the voltage overshoot from exceeding the absolute

maximum voltage of the device.

The fast current-limit speed of the TPS25820/21 device to hard output short circuits isolates the input bus from

faults. However, ceramic input capacitance in the range of 1 μF to 22 μF adjacent to the input aids in both

response time and limiting the transient seen on the input power bus. Output voltage undershoot is caused by

the inductance of the output power bus just after a short has occurred and the device has abruptly reduced the

OUT current. Energy stored in the inductance drives the OUT voltage down, and potentially negative, as it

discharges. An application with large output inductance (such as from a cable) benefits from the use of a high-

value output capacitor to control voltage undershoot.

Since the source is considered cold socketed when not attached to a sink, the output capacitance should be

placed at the IN pin rather than the OUT pin, which has been commonly used in USB Type-A ports. A 120-μF

capacitance is recommended in this situation. It is also recommended to a ceramic capacitor less than 10 μF on

the OUT pin for better voltage bypass and compliance to Type-C spec.

8.2.1.1.2 System Level ESD Protection

System-level ESD (per EN61000-4-2) may occur as the result of a cable being plugged in, or a user touching the

USB receptacle or cable plug exposed pins. The recommended capacitor on the OUT pin helps reduce the

severity of ESD hit on the VBUS path thereby protecting the OUT pin of device. The device has ESD protection

built into the CC1 and CC2 pins so that no external protection is necessary as long as proper trace layout

guidelines are practiced. Refer to the Layout Guidelines section for external component placement and routing

recommendations.

8.2.1.2 Detailed Design Procedure

Design considerations are listed below:

• Place at least 120 µF of bypass capacitance close to the IN pins versus OUT as Type C is a cold socket

connector.

• A <10-µF bypass capacitor is recommended placed near Type-C receptacle VBUS pin to handle load

transients.

• Depending on the max current level advertisement supported by the Type-C port in the system, set CHG

levels accordingly.

• EN and CHG pins can be tied directly to GND or IN without a pull-up resistor.

– CHG can also be dynamically controlled by a µC to change the current advertisement level to the sink.

• When an open drain output of the TPS25820 is not used, it can be left as NC or tied to GND or when used,

pulled up to IN supply via a 100-kΩresistor.

• Connect a 0.5% 100-kΩresistor between the REF and GND pins placing it close to the device pin and

isolated from switching noise on the board.

l TEXAS INSTRUMENTS

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

Typical Applications (continued)

8.2.1.3 Application Curves

Figure 13. Sink Attach Event Figure 14. Sink Detach Event

COUT = 6.8 µF, Short Output, IN=EN=5V, CC1=Rd, CC2 open

Figure 15. Out Short Event Figure 16. Extended Period OUT Short Event

Figure 17. Screw Driver Short on VBUS

VIN: 5V ≥0V - 5V;1V/ms,365 ms wait,CC1 = Rd,CC2 = open

Figure 18. Brownout Test

l TEXAS INSTRUMENTS For an 2 DCP

4.5V t 5.5V

100 k:

(1%)

3 x 100 k:

(Optional)

Control Signals

Bus Power

Power Switch

Status Signal

Type-C DFP

Status Signals

USB Type-C

Connector

VBUS

TPS25820/21

CHG

REF

GND

OUT

FAULT

CC1

CC2

SINK

POL

Power Pad

10µF

0.1µF

47µF

100 :

D+

D-

For BC1.2 DCP

Mode Support

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

Typical Applications (continued)

8.2.2 Type -C Source Port Implementation with BC 1.2 (DCP Mode) Support

BC1.2 charging is not supported in the TPS25820/21, however adding BC1.2 DCP (Dedicated Charging Port)

support with the TPS25820/21 can be done by having the D+ and D- shorted together with a maximum

impedance of 200 Ωbetween them and left floating with respect to ground. This is shown in Figure 19. However

with DCP implementation the port will not support any data transfer, but is capable of advertising charge currents

up to 1.5 A to a legacy device that is connected using a Type-C to Type-A or Micro-B cable. This type of port

allows for wall chargers and car chargers with high-charge capability without the need for enumeration. Figure 19

shows a Type-C source implementation capable of supporting 5-V and 1.5-A charging in a Type-C port that is

also able to support charging of legacy devices when used with a Type-C - μB cable assembly.

Figure 19. Type-C Source Port Implementation with BC 1.2 (DCP Mode) Support

8.2.2.1 Design Requirements

Refer to Design Requirements for the Design Requirements.

8.2.2.2 Detailed Design Procedure

Refer to Detailed Design Procedure for the Detailed Design Procedure.

8.2.2.3 Application Curves

Refer to Application Curves for the Application Curves.

8.2.3 Implementing a USB 3.1 Type-C Charging Port with the TPS25820

Figure 20 shows a conceptual implementation of USB 3.1 capable Type-C DFP, used in notebook, desktop, LCD

monitor or dock application where both USB data and charging is supported. USB 2.0 data lines are connected

directly to Type-C receptacle while USB 3.1 data is connected through a USB 3.1 MUX. The TPS25820 controls

the USB 3.1 MUX via its POL pin. In this implementation if the USB host/hub is capable of supporting BC1.2

charging then it is possible to support both BC1.2 and Type-C charging from the same Type-C port.

l TEXAS INSTRUMENTS sz XnZ sz XnZ

USB 3.1 Hub/Host USB 3.1 MUX

TPS25820

SSRXp, SSRXn

SSTXp, SSTXn

SSRXp1, SSRXp2

SSRXn1, SSRXn2

SSTXp1, SSTXp2

SSTXn1, SSTXn2

D+/D-

VBUS

POL

Power In

Type-C Port

CHG

CC1

CC2

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

Typical Applications (continued)

Figure 20. USB 3.1 Type-C Charging Port

8.2.3.1 Design Requirements

Refer to Design Requirements for the Design Requirements.

8.2.3.2 Detailed Design Procedure

Refer to Detailed Design Procedure for the Detailed Design Procedure.

8.2.3.3 Application Curves

Refer to Application Curves for the Application Curves.

8.2.4 Implementing TPS25821 in USB Car Chargers

Given its small footprint, highly integrated design and ultralow standby current, the TPS25821 is ideal for use in

cigarette lighter adapter (CLA) USB car chargers capable of supporting Type-C 1.5-A and BC1.2 DCP charging

from same Type-C port. This makes it suitable for fast charging phones with either µB or Type-C connector.

Figure 21 shows such an implementation for a two port CLA design. The LMS3635 was chosen for its wide VIN

and high efficiency to allow for the compact design needed in a CLA body.

l TEXAS INSTRUMENTS

LMS3635

(3.5A Synchronous

Buck Regulator)

TPS25821

(USB Type-C Source

Charger)

TPS25821

(USB Type-C Source

Charger)

5V, 1.5A

6.5V-36V

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

Typical Applications (continued)

Figure 21. USB Car Charger

8.2.4.1 Design Requirements

Refer to Design Requirements for the Design Requirements.

8.2.4.2 Detailed Design Procedure

Refer to Detailed Design Procedure for the Detailed Design Procedure.

8.2.4.3 Application Curves

Refer to Application Curves for the Application Curves.

l TEXAS INSTRUMENTS

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

9 Power Supply Recommendations

The device has one power supply input, IN, which is the chip supply. It is connected to the OUT pin via a power

integrated MOSFET and in the case of the TPS25820 it also is MUXed either to CC1 or CC2 pin in the Type-C

receptacle depending on cable plug polarity.

USB Specification Revision 2.0 and 3.1 requires VBUS voltage at the connector be between 4.75 V to 5.5 V.

Depending on layout and routing from supply to the connector, the voltage droop on VBUS has to be tightly

controlled especially when providing 1.5 A. Locate the input supply close to the device. For all applications, a

ceramic bypass capacitor between OUT and GND less than 10 μF is recommended and should be placed as

close to the Type-C connector and device as possible for local noise decoupling. The power supply should be

rated higher than the current limit set to avoid voltage droops during overcurrent and short-circuit conditions. Also

see Input and Output Capacitance Considerations on chip by-passing considerations.

l TEXAS INSTRUMENTS

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

10 Layout

10.1 Layout Guidelines

Layout best practices as it applies to the TPS25820/21 are listed below.

• For all applications a ceramic capacitor less than 10 µF is recommended near the Type-C receptacle and

another 120-µF ceramic capacitor placed close to the IN pin.

– The optimum placement of the 120-µF capacitor is closest to the IN and GND pins of the device.

– Care must be taken to minimize the loop area formed by the bypass-capacitor connection, the IN pin, and

the GND pin of the IC. See Figure 22 for a PCB layout example.

• High current carrying power path connections to the device should be as short as possible and should be

sized to carry at least twice the full-load current.

– Have the input and output traces as short as possible. The most common cause of voltage drop failure in

USB power delivery is the resistance associated with the VBUS trace. Trace length, maximum current

being supplied for normal operation, and total resistance associated with the VBUS trace must be taken

into account while budgeting for voltage drop.

– For example, a power carrying trace that supplies 1.5 A, at a distance of 20 inches, 0.100-in. wide, with 2-

oz. copper on the outer layer will have a total resistance of approximately 0.046 Ωand voltage drop of

0.07 V. The same trace at 0.050-in.-wide will have a total resistance of approximately 0.09 Ωand voltage

drop of 0.14 V.

– Make power traces as wide as possible.

• The resistor attached to the REF pin of the device has several requirements:

– It is recommended to use a 0.5% 100-kΩresistor.

– It should be connected to pins REF and GND.

– The trace routing between the REF and GND pins of the device should be as short as possible to reduce

parasitic effects on the current limit and current advertisement accuracy. These traces should not have

any coupling to switching signals on the board.

• Locate all TPS25820/21 pull-up resistors for open-drain outputs close to their connection pin. Pull-up resistors

should be 100 kΩ.

– When a particular open drain output is not used/needed in the system leave the associated pin open or

tied to GND.

• Keep the CC lines close to the same length.

• Thermal Considerations:

– When properly mounted, the thermal pad package provides significantly greater cooling ability than an

ordinary package. To operate at rated power, the thermal pad must be soldered to the board GND plane

directly under the device. The thermal pad is at GND potential and can be connected using multiple vias

to inner layer GND. Other planes, such as the bottom side of the circuit board can be used to increase

heat sinking in higher current applications. Refer to Technical Briefs: PowerPad™ Thermally Enhanced

Package (TI literature Number SLMA002) and PowerPAD™ Made Easy (TI Literature Number SLMA004)

or more information on using this thermal pad package.

– The thermal via land pattern specific to the TPS25820/21 can be downloaded from the device web page at

www.ti.com.

– Obtaining acceptable performance with alternate layout schemes is possible; however the layout example

in the following section has been shown to produce good results and is intended as a guideline.

INSTRUMENTS OO OOO OOO

Signal Ground

Top Layer

POL#

REF

CC1

CC2

OUT

SINK#

FAULT#

CHG

IN Thermal

Pad

Top Layer Signal Trace

GND

Top Layer Signal Ground Plane

Bottom Layer Signal Ground Plane

Via to Bottom Layer Ground Plane

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

10.2 Layout Example

Figure 22. Layout Example

l TEXAS INSTRUMENTS

TPS25820

TPS25821

www.ti.com

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

Product Folder Links: TPS25820 TPS25821

11 Device and Documentation Support

11.1 Device Support

11.1.1 Third-Party Products Disclaimer

TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT

CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES

OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER

ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE.

11.2 Documentation Support

11.2.1 Related Documentation

For related documentation see the following:

•PowerPad™ Thermally Enhanced Package (TI literature Number SLMA002)

•PowerPAD™ Made Easy (TI Literature Number SLMA004)

•TPS25810EVM-745 User's Guide (SLVUAI0)

•Protecting the TPS25810 from High Voltage DFPs (SLVA751)

11.3 Related Links

The table below lists quick access links. Categories include technical documents, support and community

resources, tools and software, and quick access to sample or buy.

Table 4. Related Links

PARTS PRODUCT FOLDER ORDER NOW TECHNICAL

DOCUMENTS TOOLS &

SOFTWARE SUPPORT &

COMMUNITY

TPS25820 Click here Click here Click here Click here Click here

TPS25821 Click here Click here Click here Click here Click here

11.4 Receiving Notification of Documentation Updates

To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper

right corner, click on Alert me to register and receive a weekly digest of any product information that has

changed. For change details, review the revision history included in any revised document.

11.5 Community Resources

The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective

contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of

Use.

TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration

among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help

solve problems with fellow engineers.

Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and

contact information for technical support.

11.6 Trademarks

E2E is a trademark of Texas Instruments.

11.7 Electrostatic Discharge Caution

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with

appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more

susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

l TEXAS INSTRUMENTS

TPS25820

TPS25821

SLVSE24C –NOVEMBER 2017–REVISED AUGUST 2019

www.ti.com

Product Folder Links: TPS25820 TPS25821

11.8 Glossary

SLYZ022 —TI Glossary.

This glossary lists and explains terms, acronyms, and definitions.

12 Mechanical, Packaging, and Orderable Information

The following pages include mechanical, packaging, and orderable information. This information is the most

current data available for the designated devices. This data is subject to change without notice and revision of

this document. For browser-based versions of this data sheet, refer to the left-hand navigation.

TEXAS INSTRUMENTS Samples Sample: Sample: Samples

PACKAGE OPTION ADDENDUM

www.ti.com 28-Sep-2021

Addendum-Page 1

PACKAGING INFORMATION

Orderable Device Status

(1)

Package Type Package

Drawing Pins Package

Qty Eco Plan

(2)

Lead finish/

Ball material

(6)

MSL Peak Temp

(3)

Op Temp (°C) Device Marking

(4/5)

Samples

TPS25820DSSR ACTIVE WSON DSS 12 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 25820

TPS25820DSST ACTIVE WSON DSS 12 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 25820

TPS25821DSSR ACTIVE WSON DSS 12 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 25821

TPS25821DSST ACTIVE WSON DSS 12 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 25821

(1) The marketing status values are defined as follows:

ACTIVE: Product device recommended for new designs.

LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.

NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.

PREVIEW: Device has been announced but is not in production. Samples may or may not be available.

OBSOLETE: TI has discontinued the production of the device.

(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance

do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may

reference these types of products as "Pb-Free".

RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.

Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based

flame retardants must also meet the <=1000ppm threshold requirement.

(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.

(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.

(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation

of the previous line and the two combined represent the entire Device Marking for that device.

(6) Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two

lines if the finish value exceeds the maximum column width.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information

provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and

I TEXAS INSTRUMENTS

PACKAGE OPTION ADDENDUM

www.ti.com 28-Sep-2021

Addendum-Page 2

continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.

TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.

In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

I TEXAS INSTRUMENTS REEL DIMENSIONS TAPE DIMENSIONS 7 “KO '«m» Reel Diameter AD Dimension destgned to accommodate the component with ED Dimension destgned to accommodate the component \engm K0 Dimenslun destgneo to accommodate the component thickness , w OveraH wtdm loe earner tape i p1 Pitch between successwe cavuy cemers f T Reel Width (W1) QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE O O O D O O D D SprocketHules ,,,,,,,,,,, ‘ User Direcllon 0' Feed Pockel Quadrams

TAPE AND REEL INFORMATION

*All dimensions are nominal

Device Package

Type Package

Drawing Pins SPQ Reel

Diameter

(mm)

Reel

Width

W1 (mm)

(mm) B0

(mm) K0

(mm) P1

(mm) W

(mm) Pin1

Quadrant

TPS25820DSSR WSON DSS 12 3000 180.0 8.4 2.25 3.25 1.05 4.0 8.0 Q1

TPS25820DSST WSON DSS 12 250 180.0 8.4 2.25 3.25 1.05 4.0 8.0 Q1

TPS25821DSSR WSON DSS 12 3000 180.0 8.4 2.25 3.25 1.05 4.0 8.0 Q1

TPS25821DSST WSON DSS 12 250 180.0 8.4 2.25 3.25 1.05 4.0 8.0 Q1

PACKAGE MATERIALS INFORMATION

www.ti.com 9-Aug-2019

Pack Materials-Page 1

I TEXAS INSTRUMENTS TAPE AND REEL BOX DIMENSIONS

*All dimensions are nominal

Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)

TPS25820DSSR WSON DSS 12 3000 210.0 185.0 35.0

TPS25820DSST WSON DSS 12 250 210.0 185.0 35.0

TPS25821DSSR WSON DSS 12 3000 210.0 185.0 35.0

TPS25821DSST WSON DSS 12 250 210.0 185.0 35.0

PACKAGE MATERIALS INFORMATION

www.ti.com 9-Aug-2019

Pack Materials-Page 2

GENERIC PACKAGE VIEW D33 12 WSON - 0.8 mm max heigm PLASTIC SMALL OUTLINE , N0 LEAD Images above are jusl a represenlalion of the package family, aclual package may vary Refel lo the product dala sheel for package details. 4209244/D I TEXAS INSTRI IMFNTS

1@ 4 41 LEEEEr \w ““‘+“““\\

www.ti.com

PACKAGE OUTLINE

12X 0.3

0.2

2.65 0.1

12X 0.35

0.25

2.5

1 0.1

10X 0.5

0.8 MAX

0.05

0.00

B2.1

1.9 A

3.1

2.9

0.35

0.25

0.3

0.2

(0.2) TYP

WSON - 0.8 mm max heightDSS0012B

PLASTIC SMALL OUTLINE - NO LEAD

4218908/A 01/2017

PIN 1 INDEX AREA

SEATING PLANE

0.08 C

(OPTIONAL)

PIN 1 ID 0.1 C A B

0.05 C

THERMAL PAD

EXPOSED

SYMM

SEE TERMINAL

DETAIL

NOTES:

1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing

per ASME Y14.5M.

2. This drawing is subject to change without notice.

3. The package thermal pad must be soldered to the printed circuit board for optimal thermal and mechanical performance.

SCALE 4.500

DETAIL

OPTIONAL TERMINAL

TYPICAL

www.ti.com

EXAMPLE BOARD LAYOUT

0.05 MIN

ALL AROUND

0.05 MAX

ALL AROUND

(1)

10X (0.5)

(1.9)

12X (0.25)

12X (0.5)

(2.65)

(R0.05) TYP

( 0.2) VIA

TYP

(1.075)

WSON - 0.8 mm max heightDSS0012B

PLASTIC SMALL OUTLINE - NO LEAD

4218908/A 01/2017

SYMM

LAND PATTERN EXAMPLE

EXPOSED METAL SHOWN

SCALE:25X

NOTES: (continued)

4. This package is designed to be soldered to a thermal pad on the board. For more information, see Texas Instruments literature

number SLUA271 (www.ti.com/lit/slua271).

5. Vias are optional depending on application, refer to device data sheet. If any vias are implemented, refer to their locations shown

on this view. It is recommended that vias under paste be filled, plugged or tented.

SOLDER MASK

OPENING

SOLDER MASK

METAL UNDER

SOLDER MASK

DEFINED

EXPOSED METAL

METAL

SOLDER MASK

OPENING

SOLDER MASK DETAILS

NON SOLDER MASK

DEFINED

(PREFERRED)

EXPOSDE METAL

Y: LIT‘ +\‘\‘\c ﬂag@gﬂ¢g

www.ti.com

EXAMPLE STENCIL DESIGN

(0.685)

12X (0.25)

12X (0.5)

10X (0.5)

2X (1.17)

2X (0.95)

(1.9)

(R0.05) TYP

WSON - 0.8 mm max heightDSS0012B

PLASTIC SMALL OUTLINE - NO LEAD

4218908/A 01/2017

NOTES: (continued)

6. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate

design recommendations.

SOLDER PASTE EXAMPLE

BASED ON 0.125 mm THICK STENCIL

EXPOSED PAD 13:

83% PRINTED SOLDER COVERAGE BY AREA UNDER PACKAGE

SCALE:25X

SYMM

EXPOSED METAL

TYP

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applicable warranties or warranty disclaimers for TI products.IMPORTANT NOTICE

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Datenblatt für TPS25820, TPS25821 von Texas Instruments

INFORMATION

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