Hello,
We are using the TPS25946 e-fuse. The input voltage is 12V. I am attaching a screen shot of the circuit.
Initially, we were using a 0.01 UF capacitor at the input of DVdt. We could observe that occasionally (often), the output voltage won't get to the 12 Volt steady state. See attached scope capture.
Replacing the 0.01 UF capacitor with a 0.033 UF capacitor, helped improve the problem, but some units would still fail at times to output the 12 Volts.
Then, the 0.033 UF capacitor was replaced with a 0.047 UF capacitor. This improved the behavior, but occasionally it would still fail.
Replacing the 825 Ohm resistor connected to the input of ILM with a 750 Ohm resistor caused the problem to become worse.
The problem will go away when the DVdt pin is touched with the scope probe,
Any suggestions would be appreciated.
