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TPS22965: Connect VBIAS and ON to VIN

Shuji Ishiwata
Mastermind 8100 points
Part Number: TPS22965


Hi All,

I have a question about TPS22965.

Is it okay to connect VIN, ON and VBIAS?
Does the ON pin need to be input with a delay for VIN and VBIAS to stabilize?

Please tell me how long it takes for VIN and VBIAS to stabilize.

Best Regards,
Ishiwata

  • +1
    TI__Mastermind 36305 points

    Ishiwata-san,

    It is OK to connect VBIAS to VIN, however it is not recommended to connect ON to either VBIAS or VIN as this will lead to unexpected behavior with the slew rate.

    For the minimum timing, you want to be sure VIN is at least 0.8V (minimum recommended Vin), tD (ON delay time) after ON is at 50% to be sure the device is biased correctly.

    Best Regards,
    Tim