Datenblatt für STEVAL-ILL070V4 Data Brief von STMicroelectronics

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October 2017
DocID030994 Rev 1
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STEVAL-ILL070V4
35 W dimmable single string LED driver using HVLED001A and
STF10LN80K5
Data brief
Features
Input voltage: VIN = 90 - 305 Vrms,
f: 45 - 66 Hz
Output current: 700 mA
(VLED = 24 V to 48 V)
Dimming: 100% to 10%
Dimming interfaces: 0 - 10 V and PWM input
High power factor, low THD
Efficiency: > 90% @ full load
Open load voltage limiting (52.4 V)
Optional remote turn-off input
Optional 3.3 V – 0.1 A voltage regulator
Fast VOUT discharge
RoHS compliant
Description
The STEVAL-ILL070V4 is intended to drive one
LED string with a maximum output current of 700
mA. The LED current can be finely adjusted
using either a 0 - 10 V interface or a PWM signal
(for example, provided by a microcontroller) on
the SELV portion of the board.
The universal input capability makes this board
suitable in worldwide designs.
On the secondary side, the board includes a
connector to plug an auxiliary linear on the
switching voltage regulator side to supply small
circuits (e.g., IoT wireless expansions like BLE,
Spirit or WiFi modules). The schematic for a
simple linear regulator to supply 5 V or 3.3 V is
also provided.
A very high power factor and efficiency are
obtained even at light loads. Input voltage
variations, excessive input voltage (overvoltage
like surges or bursts) and very low input voltages
are managed by the HVLED001A protections,
improving the reliability of the application.
The output capacitor is automatically discharged
at turn-off to prevent any harm from contact with
output connector.
Output open circuit and overload protections
include auto restart for safe operation in lighting
environments.
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DocID030994 Rev 1
1 Board description
Figure 1: Jumper and connector locations
Table 1: Description of the jumper and connector signals
Con
Pin
Signal
name
Dir
Description and use
J1
1
LED
Cathode
Output
Connect to the cathode of the LED string
2
LED
Anode
Output
Connect to the anode of the LED string
J2
1
AC mains
Input
First connection to AC Mains – Warning high voltage
2
AC mains
Input
First connection to AC Mains – Warning high voltage
J3
1
AUX
Output
Regulated 12 V signal with 2mA capability – suitable to supply a
variable resistor to drive 0 - 10 V interface
2
0-10
Interface
Input
A voltage between this pin and GND sets the level of output
current: 10 V sets the maximum IOUT while any voltage between
1 V and 0 V sets the minimum current
3
GND
Ground
Secondary side signal reference voltage
J4
1
GND
Ground
Secondary side signal reference voltage
2
PWM
Input
Input
A PWM signal applied to this terminal sets an output current
proportional to signal’s duty cycle. The recommended PWM
signal amplitude is between 3.3 V and 5 V. The recommended
PWM signal frequency is between 200 Hz (especially when U6
is used, see Figure 3 for reference) and 1 kHz (especially when
original configuration is used).
J6
1
GND
Ground
Secondary side signal reference voltage
2
GND
Ground
Secondary side signal reference voltage
3
Reg_out
Input
Output of the optional external Voltage regulator (not provided)
LED Cathode
LEDAnode
GND
0-10 Interface
VAUX
GND
PWM input
GND
Switch_off*
Reg_out*
GND
PWMDim
Reg_in*
AC
Mains
STEVAL-ILL070V4
Board description
DocID030994 Rev 1
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Con
Pin
Signal
name
Dir
Description and use
4
Switch_off
Input
Set this pin to 3.3 V to turn off the LED string. Set to 0 V or left
open during normal operation
5
Reg_in
Output
Unregulated output to supply the optional external Voltage
regulator (not provided). Assemble R49 (0R0) to activate this
function
6
PWM_dim
Input
Same as J4, 2 (PWM Input)
T D
STEVAL-ILL070V4
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DocID030994 Rev 1
2 Schematic diagrams
Figure 2: STEVAL-ILL070V4 – schematic of constant current regulation section
L N
Vout = 20V to 48V.. Vovp = 54.3V
Iout = 0.7A (Imax 3.5A - during protection)
12V
IREF = 167mV
VREF = 1.25V
VCC
GD
CS
ZCD
CTRL
VRECT
VOUT
Vsec
Aux_ZCD
VCC_sec
COM_OUT
FB
GD
HVSU
TOFF
Vdiv_out
Vsec
VOUT
SecAux
COM_OUT
VCC
VCC_sec VRECT
TOFF
CS VCC
ZCDCTRL
GD VOUT FB
VCC_Micro
Aux_ZCD
Vos
VCC_sec
SecAux
VOUT
VREF_V
SecAux
Switchoff
PWMDim
C14
100nD12
1N4148WS
C30
100p
R16
18k
TP9
Vcc_sec
C9
1n
300Vac - Y2
C12
100p
R32
1k
D10 BAV21W
R11 220
F1
1A
D20
BAV19W
R21
2.32k
R5
1k
J1
LEDout
1
2
R34
10k
C10
100n
R3
0R0
C24
100p
C22
1u
R1
33k
C3
2.2n
400V
TP11
VCTRL
Q6
BC817-25
TP5
GND_SEC
R51 1k
Q3
MMBTA06
-+
BR1
2KBP08M
4
1
2
3
C6
2.2u
J2
Mains Connector
1
2
D2
BAV21W
R29
15k
T2
TSLER2834001
11
2
4
9
8
5
7
6
1
12 C5
1200u
Q5
MMBTA06
TP12
VCC
R10
56k
C7
330n
R2 150k
D11
1N4148WS
D9
1N4148WS
TP2
VTOFF
U3
TCLT1007
4
3
TP4
GND_PRI
C25
1u
R30
1.27k
R49
0R0
D3
BZX384-C18,11 5
D6
STTH108
C20
1n
R35
100k
R9
130k
D7
BAV21W
TP7
VZCD
C19
33n
D1
1N4148WS
R8
0R47
Q4
2N7002
R7
120k
C4
100n
RV2
S07 K300
D8
RS3B
C11
100p
1kV
D4
P6KE-400A
C15
4.7u
C1
22u
35V -105°C
R4
10M
R26
100k
C18
33n
U2
TL431AI
TP10
VRECT
R17
442k
T1
47mH
1
46
3
C8
100n
D13
1N4148WS
C17
10u
D5
STTH803
C21
22n
C23
220n
R15
56k
R25
620k
R24
20k
R12
100
C2
4.7u
R28
10k
R6
0R47
TP1
VCS
R19
2.7k
R14
0R68
J6
IoT dongle
1
2
3
4
5
6
R18
20k
Q1
BCX55-16
Q2
STF10LN80K5
R23
5.6k
R31
470k
C13
100n
R33
10k
C16
220n
R20
120k
TP6
VOUT
R27
8.25k
RV1
S07 K300
U1
HVLED001A
HVSU1
TOFF
3
FB
4
CTRL
5ZCD 6
CS 7
GND
8
GD 9
VCC 10
R50 1k
R13
0R68
TP3
VGD
TP8
FB
R22
1k
U4
TSM1012
VCC 8
OUT
7
CV-
4
GND
6
CC-
2
CC+3
CV+ 5
VREF 1
90 - 305 Vac
TSLER2834001
Core - ER2834
Lpri = 520uH (5%)
(6-7) <-> (4-9) = 1
(6-7)+(4-9) <-> (1-12)+(2-11) = 3.1
(6-7)+(4-9) <-> (5-8) = 3.3
(1-12) + (2-11) <-> (1-12) = 2.8
Isat_pri(sec) >= 2.4A (5.6A)
THD optimizer
Vout discharge
HS1 heatsink
A V0 HEN} AW'
STEVAL-ILL070V4
Schematic diagrams
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Figure 3: STEVAL-ILL070V4 – schematic of dimming interface section
12V VCC_sec
Vos
VOUT
VREF_V
Switchoff
PWMDim
VCC_sec
D15
MM3Z6V8
R37
470k
Q9
MMBTA06
D16
MMSZ4697
D14
1N4148WS
JP2
L = 300mils (7.62mm)
R41
220
JP3
0R0
J4
PWM DIM
1
2
Q7
BC817-25 R45
1k
t°
RT1
2.1
R42
470k
R56
1k
D19
SMAZ15
D17
1N4148WS
-
+
U5
TSX561
3
4
5
2
1
R39
68k
R47
36k
JP1
L = 300mils (7.62mm)
D18
MM3Z8V2
R36
430k
U6
TCLT1007
1
2
4
3
C28
10n
C26
100n
R43
330
R44
330k
R40
470k
J3
0-10V
1
2
3
R46
10k
R48 10k
Q8
BC817-25
C29
1n
C27
100n
R38
100k
Inverted Logic signal
Ftyp = 1kHz (for performances)
Amplitude = 3.3V to 5V (up to 10V tolerant)
Isolated interface can be configured
removing JP1, JP2 and assembling PC817 opto
When Opto is assembled Fsw = 200Hz and Log behavior is achieved
TurnOff circuit
Assemble JP3 to turn off from Dimming port
12V
DIM_0-10
GND
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DocID030994 Rev 1
3 Revision history
Table 2: Document revision history
Date
Version
Changes
03-Oct-2017
1
Initial release.
STEVAL-ILL070V4
DocID030994 Rev 1
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