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FSDM0465RS Datasheet Green Mode Fairchild Power Switch

Manufacturer: Fairchild (now onsemi)

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General Description

The FSDM0465RS is an integrated Pulse-Width Modulator (PWM) and SenseFET specifically designed for high-performance offline Switch Mode Power Supplies (SMPS) with minimal external components.

The device is an integrated, high-voltage, powerswitching regulator that combines an avalanche rugged SenseFET with a current mode PWM control block.

The PWM controller includes 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.

Overview

FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) April 2009 FSDM0465RS Green Mode Fairchild Power Switch.

Key Features

  • ! Internal Avalanche Rugged SenseFET ! Advanced Burst-Mode Operation Consumes under 1W at 240VAC and 0.5W Load ! Precision Fixed Operating Frequency: 66kHz ! Internal Startup Circuit ! Improved Pulse-by-Pulse Current Limiting ! Over-Voltage Protection (OVP) ! Overload Protection (OLP) ! Internal Thermal Shutdown Function (TSD) ! Abnormal Over-Current Protection (AOCP) ! Auto-Restart Mode ! Under-Voltage Lock Out (UVLO) with Hysteresis ! Low Operating Current: 2.5mA ! Built-in Soft-Start Applicat.

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