TPS92201: FB short to ground conditiion

JDJ

Part Number: TPS92201

Tool/software:

I am looking into the TPS92201 fb short to ground condition, but need extra details on how the fb short to ground has a mitigation.

Can you please provide additional details.

0 Andy Chen 2 months ago

Hi,

there is more detail information on latest data sheet:

the LED current may increase to about 2A or Vout close to Vin if FB short to GND.

0 JDJ 2 months ago in reply to Andy Chen

Hi Andy, the LED current does not hit 2A. The input is 5V, the LED forward is about 3V. Is this expected behavior?

0 Andy Chen 2 months ago in reply to JDJ

Hi,

When FB is short to GND, pls check the Vin and Vout with Oscilloscope, LED current will increase to 1.5A ~2A if Vin stays above 3.6V

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