I am using the LT3741 to control the current of a laser diode, but I am facing the following problem.
When I put 0VCC on the ctrl1 pin, a current of 195 mA flows in my load, even when I put the pin directly at 0Vcc, I have this current flowing.
In my project, I used a 4mOhms shunt resistor, frequency of 500kHz, the inductor used is 1.3uH, the maximum calculated current is 12.75 Amps, input source 12vcc output voltage 10 Vcc and the control signal where I will range is from 0 to 1.5 Vcc.
What could I do to try to reduce this current that keeps flowing in my circuit?
Thank you
Edit Notes
.[edited by: DiogoOliveira1988 at 3:04 AM (GMT -4) on 4 Oct 2025]