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LM96163: What’s the LM96163's behavior during POR?

Part Number: LM96163

1. Based on the datasheet, it should be PWM output 0x20 with PWM Frequency 0x17 during POR, that means it 70% duty cycle during POR, is it correct?

2. We expected one fixed PWM output during POR and it can trigger TCRUT signal once our ASIC temperture is over the threshold 110 degree, is it possible?

note:

POR sate mean power on reset, but in our application, the reset may be very long or repeatedly, at this state, we only have the power 3.3V input, no I2C input

  • Hello Tony

    As per the Application Note at the end of the datasheet, when the device is powered up, the PWM Value is 0x00 which means no output till the register is programmed. The register needs to be programmed for setting the correct duty cycle.