Features

　　? Soft Burst-Mode Operation for Low Standby Power

　　Consumption and Low Noise

　　? Precision Fixed Operating Frequency： 66kHz

　　? Pulse-by-Pulse Current Limit

　　? Various Protection Functions： Overload Protection

　?。∣LP）， Over-Voltage Protection （OVP）， Abnormal

　　Over-Current Protection （AOCP）， Internal Thermal

　　Shutdown （TSD） with Hysteresis， Output-Short

　　Protection （OSP）， and Under-Voltage Lockout

　?。║VLO） with Hysteresis

　　? Auto-Restart Mode

　　? Internal Startup Circuit

　　? Internal High-Voltage SenseFET： 650V

　　? Built-in Soft-Start： 15ms

　　Description

　　The FSGM0465R is an integrated Pulse Width

　　Modulation （PWM） controller and SenseFET specifically

　　designed for offline Switch-Mode Power Supplies

　?。⊿MPS） with minimal external components. The PWM

　　controller includes an integrated fixed-frequency

　　oscillator， Under-Voltage Lockout （UVLO）， LeadingEdge Blanking （LEB）， optimized gate driver， internal

　　soft-start， temperature-compensated precise current

　　sources for loop compensation， and self-protection

　　circuitry. Compared with a discrete MOSFET and PWM

　　controller solution， the FSGM series can reduce total

　　cost， component count， size， and weight; while

　　simultaneously increasing efficiency， productivity， and

　　system reliability. This device provides a basic platform

　　suited for cost-effective design of a flyback converter.