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Original question:

SN65HVD1780-Q1: RS485 transceiver output short circuit power dissipation

SN65HVD1780-Q1: Short to battery protection for RS485

VAIBHAV RAJGURU
Prodigy 40 points
Part Number: SN65HVD1780-Q1

Hi Eric,

Is it safe to do short to battery(24V) test on terminal A and B. As described in absolute maximum rating voltage range is -70V to +70V.

Please reply ASAP.

Thanks.

  • 0
    TI__Guru 50795 points

    Hi Vaibhav,

    Yes, this device will be able to withstand a 24v battery short indefinitely because this value is below the specified absolute maximum. Note that the device may not behave according to other specifications (functional upset possible) when conditions exceed the values specified in the Recommended Operating Conditions section. This means during the 24v short, damage will not occur but the device will likely not function properly. See note (1) in section 6.1. 

    Regards,
    Eric

  • 0 in reply to Eric Schott1
    Prodigy 40 points

    Dear Eric,

    My query is resolved thanks for your support.

    Regards,

    Vaibhav Rajguru