I am not getting the expected If in my LM3404HV breadboard prototype. I have attached a drawing of my schematic & the desired circuit features are:
Input Voltage = 52 Vdc
LED Vf = 33 Vdc
LED Current = 1000 mA
Switching Frequency = 215 kHz
The circuit turns my series string of LEDs on & I am able to dim using a 0-5 Vdc PWM signal. Right now, I only measure around a 200 mA forward current when I am expecting ~1000 mA.