Other Parts Discussed in Thread: TPS55288, TXU0304, TXU0104, TXU0204
We found a question in the application of TXS0108E.
In our application , VCCA=1.8V , VCCB=3.3V.
we connect A1 pin to the IO of FPGA 1.8V bank and B1 pin to the EN pin of TPS55288.
There is a 1K pull-down resistor on the EN pin of TPS55288.
The voltage on B1 pin drop from 3.3V to 0.9V in this condition .
We would like to ask why the TXS0108E can't drive the EN of TPS55288 ?
The current on the EN pin of TPS55288 is only 1mA.
The output current of TXS0108E is max 50mA.