FAN301U PDF – PWM Controller, SO 8, Fairchid

Part Number : FAN301, FAN301U, FAN301MY

Function : PWM Controller for Low Standby Power Charger Applications

Package : SO 8 Pin type

Manufactures : Fairchild Semiconductor

Images :

2 page

Description :

This highly integrated PWM controller, FAN301, FAN301U provides features to enhance the performance of lowpower flyback converters. The proprietary topology enables simplified circuit design for battery charger applications. A low-cost, smaller, and lighter charger is the result, 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. This green mode assists the power supply in meeting power conservation requirements.


3 page

Features :

1. Ultra-Low Standby Power Under 20mW at 264VAC

2. Constant-Current (CC) Control without Secondary-Feedback Circuitry

3. Green Mode: PWM Frequency Linearly Decreasing

4. Fixed PWM Frequency at 45kHz with Frequency Hopping to Solve EMI Problems

5. High-Voltage Startup

6. Low Operating Current: 3mA

7. Peak-Current-Mode Control in CV Mode

FAN301U Datasheet

FAN301U pdf