Design contains obsolete parts

EVB_RT8497AGS: 17 W T8: 230mA @ 78V Max, 90 ~ 264 VAC in

Summary

The RT8497A integrates a power MOSFET and a Boundary mode controller in a small SOP-8 Package. It is used for step down converters by well controlling the internal MOSFET and regulating a constant output current.

The RT8497A features a ZCS detector which keeps system operating in BCM and obtaining excellent power efficiency, better EMI performance. The RT8497A achieves high Power Factor Correction (PFC) and low Total Harmonic Distortion of Current (THDi) by a smart internal line voltage compensation circuit which has minimized system component counts; saved both PCB size and total system cost.

Especially, the RT8497A can use a cheap simple drum core inductor in the system instead of an EE core to obtain high efficiency. Thus, the components in the whole LED driver system can be made very compact. small enough to fit inside of a standard T8 size bulb for LED replacement lighting

Specifications

Manufacturer	Richtek USA Inc.
Category	Lighting
Sub-Category	LED Drivers - AC / Offline
Eval Board Part Number	EVB_RT8497AGS-ND
Eval Board Supplier	Richtek USA Inc.
Eval Board	Normally In Stock
AC Voltage	Universal
Outputs and Type	1 Non-Isolated
Current Out	230 mA
Voltage Out (Max)	78 V
Efficiency @ Conditions	>91%, 110 ~ 240 VAC, 78V @ 230 mA
Features	Open Circuit Protection Over Current Protection Over Voltage Protection Short Circuit Protection Thermal Protection
Switching Frequency	- Not Given
Component Count + Extras	29 + 3
Design Author	Richtek USA Inc.
Application / Target Market	Lighting: LED Commercial Lighting Lighting: LED Home Lighting Lighting: LED Signage
Voltage In	90 ~ 264 VAC
Power Factor	>0.95 @ 110 ~ 230 VAC
Standard(s)	CISPR22 B conducted EMI EN55015 IEC 61000-3-2 Class C
Main I.C. Base Part	RT8497
Date Created By Author	2016-05
Date Added To Library	2018-08