DMO465R Datasheet – 650V Integrated Power Switch – Fairchild

Part Number: DMO465R, DM0465R

Function: 650V, Integrated Power Switch

Package: TO-220F-6L Type

Manufacturer: Fairchild


DMO465R datasheet



The DMO465R, FSDM0465RE, FSDM0565RE, and FSDM07652RE are an integrated Pulse Width Modulator

(PWM) and SenseFET specifically designed for high-performance offline Switch Mode Power Supplies (SMPS) with minimal external components.

This device is an integrated high-voltage power-switching regulator that combines an avalanche-rugged SenseFET with a current mode PWM control block. The PWM controller includes an integrated fixed-frequency oscillator, under-voltage lockout, leading-edge blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise-current sources for a loop compensation, and self-protection circuitry.

Compared with a discrete MOSFET and PWM controller solution, it can reduce total cost; component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device is a basic platform well suited for cost-effective designs of flyback converters.

DMO465R PDF Datasheet 650V Integrated Power Switch for 48Watt offline flyback converters


1. Internal Avalanche Rugged Sense FET

2. Advanced Burst-Mode Operation Consumes Under 1 Watt at 240VAC&0.5W Load

3. Precision Fixed Operating Frequency (66kHz)

4. Internal Start-up Circuit

5. Improved Pulse-by-Pulse Current Limiting

6. Over Voltage Protection (OVP)

7. Overload Protection (OLP)

8. Internal Thermal Shutdown Function

DMO465R pdf