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PSPICE for TI - TPS2662x 60-V, 800-mA Industrial eFuse - OVP does not vary

Pete2

Hello,

checking up for the TPS2662x 60-V, 800-mA Industrial eFuse from TI all is working despite the upper voltage working limits.

The OVP limit is installed at 30V for all 5 parts instead of 38V only for the TPS26622/TPS26623 types.

Only the UVLO is changeable via resistor networks as described within the data sheet.

Is there a workaraound existing? Or has the modell to be updated?

Thanks a lot !          Pete2

  • AyushD
    0

    As per datasheet you can control the OVP externally using a resistor divider from input supply to OVP pin.

    Did you try connecting the resistor divider as required ?

  • Pete2
    0 in reply to AyushD

    Thank you for answer.

    Yes indeed this part is successfully used in my practical circuits at all. Now I tried to simulate this part for the higher up to 57 V voltages before integrating it into a new circuit this 3-resistor-divider implemented with the lower UVLO working giving a voltage ramp to the input referenced to GND.

    P.S.: It is also that many TPS power-management parts only function correctly referenced to GND 0 but not shifted to a higher level, eg. TPS3701..

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