I have designed in ADuM4135 for a double pulse test (DPT). The circuit works fine but after some power turn on and off event the Vout_on don't show any output signal.
I have attached the schematic file for the driver circuit designed for the DPT.
I have used the R15P22005D IC which generates +20/-5V for VDD2 and VSS2. I have not attached the power circuit board which contains the MOSFET modules.
I have designed the new board and just soldered the R15P22005D, ADuM4135 IC and some filter capacitors with following configurations below
1. VDD1 = 3.3V
2. VIN+ = 3.3V from DSP controller output
3. VIN- = GND
4. Pin 4 and Pin 5 pull up by using 10k resistor
5. Pin 6 = 3.3V
on the secondary side DESAT and GND2 is connected together.
6. Pin 9 and Pin 16 = -5V
7. Pin 13 = 20V
The circuit works fine before with circuit configurations attached with but suddenly its stops working and than I used the new board with new ADuM4135 IC but still there is no output shown at pin 14.
Hope anyone help me in this matter.
I'm sorry you're still having trouble with the part. I haven't come across soldering issues in the past, and I've hand soldered many of the ADuM4135 during development of the part.…