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TPS66120: TPS66120

subhashree muduli
Prodigy 90 points
Part Number: TPS66120
Other Parts Discussed in Thread: TPS66121

Hello,

In the datasheet Vt+ and Vt- mentioned as percentage. Is it the enable VIH and VIL parameter? 

Note: Our PD controller enable out pin is 1.8v by default. 

 

  • 0
    TI__Expert 5695 points

    Hello Subhashree,

    The logic levels required for the Enable pin (EN ) depends on the Part number you selected. TPS66120 is 3.3V logic and TPS66121 is 5V logic.

    Since thee PD controller you are using have logic level of 1.8V, then you will need a level shifter (e.g. from 1.8V to 3.3V if you use TPS66120).

    Please notice that VIN is an optional voltage to power on the internal logic of TPS66120 .If VIN not present the internal logic and VLDO will be powered by the voltage from VBUS, and will be 3.3V. This is called "dead Battery Mode" and assumes all power comes from VBUS. Please review section 7.3.4 Power Management and Supervisory from data sheet for the details.

    Regards,

    Jose