I have a question about the D1/D2 of ADM2487E.
I am using ADM2487E with the same circuit as Figure34 in the datasheet.
In my circuit, When VDD1 reaches about 1.4V, D1/D2 and GND are short-circuited.
And, the overcurrent flows to the transformer.
When the voltage of VDD1 goes up further, D1/D2 starts oscillating.
I want to solve the problem of the overcurrent to the transformer until D1/D2 starts oscillating.
Could you tell me advice of the cause?
Thank you for your reply.
There isn't current limit on VDD1 input.
I have 50pcs ADM2487E.
The problem occurs only 10 devices in this.
Is there regulations at the power on slew rate of VDD1?
I will sent you the schematic directly later.