TPS92560: LEDs flickering when TPS92560 working with electronic transformer

Mike Peng

Part Number: TPS92560

LEDs flickering when TPS92560 working with electronic transformer, tried inductance 15uH, 30uH(2x15uH in series) and 47uH, none of them would stop flickering.

over 5 years ago

0 Irwin Nederbragt over 5 years ago

TI__Mastermind 28655 points

Hello Mike,

The load for the electronic transformer wants to look more like a resistor. The resistor and capacitor across the input are important as well as the power drawn from the transformer. A current probe may help troubleshoot what is going on. If this is also with a triac dimmer that adds more complexity to the problem.

Best Regards,

0 Mike Peng over 5 years ago in reply to Irwin Nederbragt

Expert 1060 points

Irwin,
Do you have any design tips document like PDF or PPT , etc.?

0 Irwin Nederbragt over 5 years ago in reply to Mike Peng

TI__Mastermind 28655 points

Hello Mike,

I'd like to take this to direct email so I'm closing this thread.

Best Regards,

0 Mike Peng over 5 years ago in reply to Irwin Nederbragt

Expert 1060 points

Irwin,

I received your email already, thanks for your help!

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TPS92560: LEDs flickering when TPS92560 working with electronic transformer