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Original question:

TXU0204-Q1: Partial Power Down

TXU0204: Output Enable Control

Changmin Oh
Prodigy 20 points
Part Number: TXU0204

Hi.

I have a question about output enable control of TXU0204.

My design is like below.

- VCCA=3.3V(Fixed), VCCB= 1.8V or 3.3V(Default)

- Output Enable referenced to VCCA through 10kohm resistor

From the link below Karan mentioned that powering VccB off while INA is in a high state.

What if output enable pin is in low state and then VccB is powered off while INA is in a high state? Would it be either undesirable situation?

Link: https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1024426/txu0204-q1-partial-power-down?tisearch=e2e-sitesearch&keymatch=TXu0204#

Regards.