资 源 简 介
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
（OLP）， Over-Voltage Protection （OVP）， Abnormal
Over-Current Protection （AOCP）， Internal Thermal
Shutdown （TSD） with Hysteresis， Output-Short
Protection （OSP）， and Under-Voltage Lockout
（UVLO） 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
（SMPS） 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.
