Hi,
there is a question inSchnieder for TPS92510. they do some test with our EVM.
and they get some waveform. please see attached waveform.
The oscillogram of LED driver as following,
1. Normal oscillogram
Test condition: Vin= 42Vdc; Vout= 19.2Vdc; Io=700mA; Fsw= 350Khz (Loading is 14W LED downlight)
2. Failure oscillogram
Test condition: Vin= 24Vdc; Vout= 19.2Vdc; Io=700mA; Fsw= 350Khz (Loading is 14W LED downlight)
In this test condition, The LED downlight has slightly flickered at the brightness dim down to 10%, and you cold see a wide duty in the waveform.
customer use the input voltage is 24V, which always is slight flicker. do you have some method to improvement.
Channel 2 : Voltage of PH pin to GND, Channel 4: output current.
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