LM61460-Q1: POWER_EN is connected to 24V through a 10K resistor. An output of 8V appears instantly upon power-up, and then the chip burns out immediately. The VIN of the chip is burned out. Is there a problem with the schematic diagram?

sheng li

Part Number: LM61460-Q1

Tool/software:

POWER_EN is connected to 24V through a 10K resistor. An output of 8V appears instantly upon power-up, and then the chip burns out immediately. The VIN of the chip is burned out. Is there a problem with the schematic diagram?

6 months ago

0 Taru Kapoor 6 months ago

TI__Genius 11995 points

Hi,

Have you captured the Vin waveform? Please share that with me.

The most probable cause of Vin burning out will be overvoltage on the pin.

Thanks,

Best Regards,

Taru

Power management

Power management forum

LM61460-Q1: POWER_EN is connected to 24V through a 10K resistor. An output of 8V appears instantly upon power-up, and then the chip burns out immediately. The VIN of the chip is burned out. Is there a problem with the schematic diagram?