Hello,
we use a MXA3221CPWR and have problems in the series.
It happens again and again on some boards the -V voltage at the MAX3221 is only -1,5V. The boards come from our PCB assembler and put them into operation in an ESD environment and assemble the device. The IC does not break soft, but during production. The default rate is about 20%. We exchange the IC after that everything is OK again. Do you have any advice as to what could happen.
Many Thanks
