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TPS92692-Q1: Questions of UVLO setting

Part Number: TPS92692-Q1
Other Parts Discussed in Thread: TPS92692

Hi,

     I saw datasheet UVLO setting is 8Vin startup.

     If I want to adjust Vin=6V startup, how to setting?

      This chip could adjust UVLO point?

thanks.

  • Hi Wu,

    Note that the specification is with VCC starting at 4.9V max and not Vin.  We monitor VCC for UVLO not Vin, please see section 8.3.1 for this UVLO explanation.  In general, the TPS92692 will start if VIN at the input pin is 6V.  Since VCC is a low dropout linear regulator with about 300mV from Vin...VCC will be about 5.7V thus above the VCC rising thethold.

    The UVLO is a set voltage monitoring VCC and cannot be adjusted.

    Thanks Tuan.