Tool/software:
I am using TXU0104 in a project. It needs to turn on and turn off VCCB while keeping VCCA be supplied. My question is, can the chip work under the condition that VCCA powered and VCCB disconnected for a long time? In the application, once the board is power-up,the VCCA is powered and VCCB will be turn on or turn off depends on some situations. During the period when the board is working, the power supply of VCCB may be connected and disconnected several times. The the VCCB off-power duration may last for few minutes to few hours, while VCCA is always be supplied. According to the datasheet, TXU0104 has "VCC isolation or VCC disconnect" feature. I understand the power supply pins can be powered asynchronously, but I am not sure if it is safe to keep VCCA on and VCCB off state for a long time. I will keep all input low when VCCB is off.
Many Thanks,
Wang
