• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 62 subscribers
  • Views 144 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS2HB16-Q1: Reverse battery protection of desired circuit

TAKAHIRO HOJO
Prodigy 150 points
Part Number: TPS2HB16-Q1

Tool/software:

Hello!

Are there any possible concerns with the circuit below? (e.g. sneak current)

Pull-down resistors of inputs are added  to the typical application and connect EN* to Device GND and all others to Module GND.

According to SLVAE55, I thought the current would flow like the blue arrow.

Is it OK if the Absolute Maximum Ratings of Ignd(-50mA) is satisfied when reverse battery?

https://www.ti.com/lit/an/slvae55/slvae55.pdf?ts=1718593022949

Thank you

  • 0
    TI__Mastermind 25895 points

    Hojo-san,

    No issue adding the pull-down resistors, however do keep in mind that the digital pins of the device do have weak internal pulldowns:

    If you desire a stronger pulldown, however, an additional pull-down resistor can be added as long as you do not violate any of the absolute maximum conditions in the datasheet.

    Best Regards,
    Tim