FSFM260 − 26W FPS

The FSFM260N/261N/300N is 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 (UVLO), 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 discrete MOSFET and PWM controller solutions, it can reduce total cost, component count, size, and weight while simultaneously increasing efficiency, productivity, and system reliability. This device is a basic platform for cost-effective designs of flyback converters.

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Product Status/Pricing/Packaging

Index	Product	Product & Eco Status	*Pricing	Packaging & Packing Info	**Package Marking Convention	Qualification Support	Compliance Certificates
0	FSFM260N	Full Production ROHS Compliant	$0.82	MDIP 8L Details MDIP 8L Drawing RAIL	Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K Line 2:FM260N	ESD (CDM) : 2000 V ESD (HBM) : 2000 V R_ƟJC : 20 °C/W Show more... Moisture Sensitivity Level (MSL) : NA Max Reflow Temp : 999	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG

Fairchild 1,000 piece Budgetary Pricing. *
If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
Top mark packaging information for product FSFM260 is available. **

Features

Internal Avalanche-Rugged SenseFET
Advanced Burst-Mode Operation Consumes Under 1W at 240V_AC and 0.5W Load
Precision Fixed Operating Frequency: 67kHz
Internal Startup Circuit
Over-Voltage Protection (OVP)
Overload Protection (OLP)
Internal Thermal Shutdown Function (TSD)
Abnormal Over-Current Protection (AOCP)
Auto-Restart Mode
Under-Voltage Lockout (UVLO) with Hysteresis
Low Operating Current: 2.5mA
Built-in Soft-Start: 15ms

Applications

LCD TV

Application Notes

Application Note	Description
AN-4138	Design Considerations for Battery Charger Using Green Mode Fairchild Power Switch (FPS™)(408 K) 26-Jan-2012
AN-4137SC	Design Guidelines for Offline Flyback Converters Using FPS™ (Chinese Translation)(879 K) 05-Mar-2011
AN-4137	Design Guidelines for Offline Flyback Converters using FPS™(409 K) 10-Apr-2013
AN-4148	Audible Noise Reduction Techniques for FPS™ Applications(220 K) 17-Jun-2011
AN-4140	Transformer Design Consideration for Offline Flyback Converters Using Fairchild Power Switch (FPS™)(1,116 K) 17-Apr-2013
AN-4141	Troubleshooting and Design Tips for Fairchild Power Switch (FPS™) Flyback Applications(200 K) 26-Jan-2012
AN-4134SC	Design Guidelines for Offline Forward Converters using FPS™ (Chinese Translation)(914 K) 05-Mar-2011
AN-4134	Design Guidelines for Offline Forward Converters using FPS™(321 K) 10-Apr-2013

Reference Designs

Application	Document Number	Featured Products	Output Power	Input Voltage	Topology
Power Supply LCD Monitor	RD-330	FSFM260	25.4W	85-265V_AC	Flyback Converter

Additional Resources

Design Tools Knowledgebase – Ask a Question Find a local sales office Product change notices (PCN) How to Buy Products or Order Samples

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