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TPS54335A: Low-Side Switch Sink Current

Don Schelle
Expert 4150 points
Part Number: TPS54335A


Hello,

The TPS54335A’s datasheet says that the low-side MOSFET can sink current from the load:

However, elsewhere in the datasheet it says that the low side switch sinking current limit is 0A.

These two things would seem to contradict each other.    Does the low-side switch sink current?

Don

  • 0
    TI__Intellectual 2795 points
    TPS54335A is eco-mode device, not FCCM, no sink current capbility like FCCM device, here 0A sinking current limit is the cross-zero spec, because the process variation, maybe will see some slight sink current when trigger cross-zero detection.