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UCC21710-Q1: Power supply current requirment

Alok Patel
Prodigy 30 points
Part Number: UCC21710-Q1

Actually in TI Document mentioned 61mA by applying VDD =15V AND VEE =-5V , Please confirm how much current required for VEE=-5V supply

  • 0
    TI__Expert 3760 points

    Hi,

    This table is from the safety limiting values table, so these values are the max values to ensure no damage is done to the isolation barrier. This is different from the power supply quiescent current, which is the necessary current the device needs to be operational. The quiescent current values for the VDD and VCC pins can be found in table 6.9, the electrical characteristics table. We don't provide a value for the VEE current because the VEE pin will be outputting current since it's a negative bias pin. Furthermore, this pin has no UVLO (VEE can be zero with no issues) so there isn't a power supply requirement. 

    Best,

    Nancy