SD4851 Overview
SD4851 is primary side power controller with built-in high voltage MOSFET. It senses the output voltage indirectly by using the auxiliary wind of the power transformer. It adopts Pulse Frequency Modulation (PFM) technology for flyback power supply controller.
SD4851 Key Features
- Lower start-up current
- Primary side control for Constant Voltage (CV) and Constant Current (CC)
- Leading edge blanking
- Pulse-Frequency Modulation
- Overvoltage protection
- Undervoltage lockout
- Over temperature protection
- Built-in high voltage MOSFET
- Cycle by