Other Parts Discussed in Thread: LM3409, TPS92641
Hi ti team,
My client uses LM3421 for BUCK circuit.Have the following problem.
1,Stroboscopic problems occur with PWM Dimming,Analog Dimming is normal,Please help to analyze the reason.
2,When the PWM is dimmed, the output capacitance cannot be increased. If the output capacitance is increased, the PWM dimming will be abnormal and the continuous diode temperature will rise instantaneously.
The schematic is referenced below