Loop compensation pin. Connects an external RC network to ground to stabilize the constant-current control loop. ZCS
The MULT pin (Pin 3) samples the rectified sinusoidal input voltage waveform. The internal multiplier forces the peak primary current envelope to track the input voltage waveform perfectly, resulting in a high power factor and ultra-low Total Harmonic Distortion (THD). Troubleshooting and Design Considerations lzc8650c ic datasheet pdf
: Drives the external power MOSFET (e.g., an 8N70 MOSFET). Loop compensation pin