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LM5032: The current sampling protection function of CS pin of LM5032 is not started

Julia Ju
Intellectual 360 points
Part Number: LM5032

The current sampling protection function of CS1/2 pin of LM5032 is not started.When CS 1/2 voltage(1.2V)  exceeds the detection value: 0.5V, PWM output is normal

  • 0
    TI__Mastermind 34465 points
    Hello Julia Ju,
    Do you have a scope waveform that shows a measurement for CS1 (CS2) and OUT1 (OUT2) ?
    You will need to measure directly on the pins and allow for a 40nS typical delay for the pwm to shut down.

    This current limit threshold is an IC measured parameter with a variation from 0.45V (min) 0.5V (typical) and 0.55V (max).
    Please retest and monitor the scope waveforms.

    Regards
    John
  • 0 in reply to John Griffin1
    TI__Mastermind 34465 points

    Hi,

    I am going to close this post since it has been over two weeks without new information.

    Please open a new post if you have further queries.

    Regards

    John