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Products » FAN104W High-Frequency Primary-Side-Regulation PWM Controller

FAN104W − High-Frequency Primary-Side-Regulation PWM Controller

This highly integrated PWM controller, FAN104W, provides several features to enhance the performance of low-power flyback converters. The proprietary topology of FAN104W enables simplified circuit design for battery charger applications. The result is a lower-cost, smaller, and lighter charger compared to a conventional design or a linear transformer.

To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to linearly decrease PWM frequency under light-load conditions. Green Mode assists the power supply in meeting power conservation requirements.

By using FAN104W, a charger can be implemented with few external components and minimized cost

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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	FAN104WMX	Full Production Green as of May 2012	$0.64	SO 8L NB Details SO 8L NB Drawing TAPE REEL	Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K Line 2:FAN104 Line 3:WMD	ESD (HBM) : 6 V RTHETA (JA) : 127 °C/W R_ƟJC : 27 °C/W Show more... Moisture Sensitivity Level (MSL) : 1 Max Reflow Temp : 260	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 FAN104W is available. **

Features

Achieves 30 mW; Energy Star’s 5-Star Level
Proprietary 500 V High-Voltage JFET Startup Reduces Startup Resistor Loss
Low Operation Current in Burst Mode: 600 µA
Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry
Green Mode: PWM Frequency Linearly-Decreasing
PWM Frequency at 85 kHz with Frequency Hopping to Solve EMI Problem
Boundary-Conduction-Mode (BCM) Operation at Lower AC Input Voltage
Cable Compensation in CV Mode
Cycle-by-Cycle Current Limiting
Gate Output Maximum Voltage Clamped at 14 V
V_DD Under-Voltage Lockout (UVLO) Available
Built-in Protections:

Output Short-Circuit Protection

Output Over-Voltage-Protection (VSOVP) with Latch Mode

V_DD Over-Voltage-Protection (V_DD OVP)

CS Pin Single-Fault Protection

VS Pin single-Fault Protection

Over-Temperature-Protection (OTP) with Latch Mode

SOIC Package

Applications

DSC

E-book Reader

External AC-DC Merchant Power Supply - Portable Consumer

External AC-DC Merchant Power Supply - Wireless Communications

Media Tablets

Mobile Handsets

Application Notes

Application Note	Description
AN-FEBFAN104WMX	User Guide for FEBFAN104WMX-T06U005A Evaluation Board(2,305 K) 08-Nov-2012
AN-6093	Design Guideline for Flyback Charger Using FAN104WMX(1,733 K) 11-Dec-2012

Videos

FAN104W – PSR PWM Controller (English)

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Reference Designs

Application	Document Number	Featured Products	Output Power	Input Voltage	Topology
Smart Phone Charger	RD-FAN104WMD-T06U005A	FAN104W	5W	90-264V_AC	Primary-Side Regulated Flyback
Tablet PC	RD-FAN104WMD-T06U010A	FAN104W	10W	90-264V_AC	Primary-Side Regulated Flyback

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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