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UCC28180: About ON / OFF operation of UCC28180

Masazumi Ishii
Genius 3945 points
Part Number: UCC28180

Hello.

I have a question about UCC28180.

Q1 Latch stop function
UCC28180 thinks that there is no latch stop function, is it OK?

Q2 Regarding UCC 28180 ON / OFF
I want to turn on / off the UCC 28180.
I think that it can be turned ON / OFF by dropping VSECE terminal and VCOMP terminal to 0V.
Please tell me about the difference when turning ON / OFF with each PIN.
Example
VSECEPIN: Start from soft start.
VCOMPPIN: Stand up immediately.　　

Thank you.

  • 0
    TI__Mastermind 34465 points
    Hello Masazumi Ishii,
    The UCC28180 is best turned on/off by controlling the voltage on the VSENSE pin.
    Pulling VSENSE below 0.82V or above 5.25V disables the GATE pin output.
    You could also pull VCOMP pin low but this is not an elegant solution and will over ride the controlled response of the EDR feature of the UCC28180.
    There is no "VSECEPIN"

    Regards
    John