DescriptionThe 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), Leading Edge 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.

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

Applications■ Power Supply for LCD TV and Monitor, STB and DVD
Combination

Manufacturer	onsemi
Product Category	AC DC Converters, Offline Switchers
Series	FPS™
Packaging	Tube
Package-Case	TO-220-6 Formed Leads
Operating-Temperature	-40°C ~ 125°C (TJ)
Mounting-Type	Surface Mount
Supplier-Device-Package	TO-220F-6L (U-Forming)
Watt	80W
Output-Isolation	Isolated
Internal-Switch-s	Yes
Voltage-Breakdown	650V
Topology	Flyback
Voltage-Start-Up	12V
Voltage-Supply-Vcc-Vdd	7.5 V ~ 26 V
Duty-Cycle	70%
Frequency-Switching	66kHz
Fault-Protection	Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit
Control-Features	-