Hello
There is a question about the behavior at the time of LED short circuit in the boost LED driver circuit like Figure 36.
If VIN is turned on with the LED short-circuited, The gate voltage of Qdim was close to VIN.
However, there seems to be a voltage difference between the source and gate for a moment,
The FET turned on momentarily, and the voltage was appearing on the drain side.
Therefore, when Qdim is turned on, VIN will be over-current drawn,
and it will stop due to over-current protection on the VIN side.
I want to pull up the gate of Qdim to the source side to prevent this.
Is there any problem in particular?
Best regards
Hara