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Original question:

TRS3232E-Q1: Can TRS3232E-Q1 protect short to 12V car battery and GND

TRS3232E-Q1: Short to 24V Batt

Ovidiu Fechete
Prodigy 40 points
Part Number: TRS3232E-Q1

Can the outputs be protected against short to battery in a 24V system? So the outputs should be protected up to 32V. Thanks. 

  • 0
    Guru 243220 points

    See the absolute maximum ratings: ± 13.2 V or ±25 V.

  • 0
    TI__Mastermind 43295 points

    Hi Ovidiu,

    Console side logic pins (ROUT and DIN)  are not protected against a short to 24V or 32V.

    The Bus side pins (DOUT and RIN) are protected to +/-13.2V (DOUT) and +/-25V (RIN) 

    So the bus side receiver pins can survive a short to 24V - the other pins cannot and none of the pins can handle a 32V short. There would need to be additional protection on the line to protect the IC pins in cases of shorts.

    Abs max table from datasheet for reference:

    Best,

    Parker Dodson