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TPS25940: Ramp time

Part Number: TPS25940

Hi TI support team,

I use TPS25940 as automotive application, due to the power dissipation of internal MOSFET, I change the dV/dT  capacitor to 100pF. 

I measure the slew rate of TPS25940, could you help me check the ramp time if it is corresponse to the spec. The slew rate of TPS26630 I previous use is pretty different from the spec.



  • Hi Smith,

    When cdvdt is open it will give fastest charge time. As per datasheet it is around 370us  :

    So when you add 100pF at dvdt pin charge time will be greater than 370us. In waveform it is around 500us which is fine.


    Kunal Goel