Power MOSFET Integrated High Efficiency BCM LED Driver Controller for High Power Factor Applications


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The RT8497 integrates a power MOSFET and a Boundary mode controller. It is used for step down converters by well controlling the internal MOSFET and regulating a constant output current.

The RT8497 features a ZCS detector which keeps system operating in BCM and obtaining excellent power efficiency, 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, the RT8497 can use a cheap simple drum core inductor in the system instead of an EE core to obtain high efficiency.

The RT8497 is housed in a SOP-8 package. Thus, the components in the whole LED driver system can be made very compact.


  • E27, PAR, Light Bar, Offline LED Lights
Technical Documents
TitleLast UpdateShareDownload
Power Solutions for LED Lighting Applications2018/11/22
Minimizing Light Flicker in LED Lighting Applications2018/08/15
Additional Documents
Title Last Update ShareDownload
AC/DC Non-Isolated BCM Floating Buck LED Driver Controller - RT8487, RT8497 2019/03/04
Non-isolated LED Lighting Driver IC Performance Test Report - RT8487, RT8497 2019/03/04
Evaluation Boards
TitleLast UpdateShareDownload
RT8497AGS Power MOSFET Integrated High Efficiency BCM LED Driver Controller for High Power Factor Applications2018/11/08
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT8497AGSSOP-82500 Request Buy from Distributor
RT8497BGSSOP-82500 Request Buy from Distributor
RT8497GSSOP-82500 Not available Buy from Distributor