Design contains obsolete parts

EVB_RT8497GS: 150mA @ 60V Max, 90 ~ 264 VAC

Summary

The EVB_RT8497GS Evaluation Board integrates a power MOSFET and a Boundary mode controller into one IC package. It is used for step down converters by well controlling the internal MOSFET and regulating a constant output current suitable for LED driver applications.

The RT8497 features a ZCS detector which keeps system operating in BCM and obtaining excellent power efficiency and better EMI performance.

The RT8497 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 since, the RT8497 can use a cheap simple drum core inductor in the system instead of an EE core to obtain high efficiency and reducing BOM cost and complexity.

The RT8497 is housed in a SOP-8 package. Thus, the components in the whole LED driver system can be made very compact. The EVB_RT8497GS evaluation board being less than 4 square inches

Specifications

Manufacturer	Richtek USA Inc.
Category	Lighting
Sub-Category	LED Drivers - AC / Offline
Eval Board Part Number	EVB_RT8497GS-ND
Eval Board Supplier	Richtek USA Inc.
Eval Board	Normally In Stock
AC Voltage	Universal
Outputs and Type	1 Non-Isolated
Current Out	150 mA
Voltage Out (Max)	60 V
Efficiency @ Conditions	>86%, 90 ~ 264 VAC in, 60V @ 150 mA
Features	Open Circuit Protection Over Current Protection Over Voltage Protection Short Circuit Protection Thermal Protection
Switching Frequency	- Not Given
Component Count + Extras	26 + 4
Design Author	Richtek USA Inc.
Application / Target Market	LCD and OLED Bias Supplies Lighting: LED Commercial Lighting Lighting: LED Home Lighting Lighting: LED Signage
Voltage In	90 ~ 264 VAC
Power Factor	>0.9 @ 90 ~ 264 VAC
Standard(s)	EN55015 B conducted EMI IEC 61000-3-2 Class C
Main I.C. Base Part	RT8497
Date Created By Author	2016-02
Date Added To Library	2018-06