Hi.
Designed with TPS40056 and being tested.
The design specifications are as follows.
- Input Voltage Range: 20V~36V
- Output Voltage Range: 0.2 ~ 30V
- Tracking Voltage Range: 0.2 ~ 2.5V
There was a problem when I used the SS / SD pin for ON / OFF control.
Tracking voltage was varied from 0.2V to 2.5V and output was up to 30V.
At this time, if the SS / SD pin is turned on/off at 2.5V using TR, the TPS40056 will be damaged.
I do not know the cause of the problem yet and I need help.
The design refers to "PMP5583".
Please answer me.