FAN400ATY Datasheet PDF - Fairchild

●Description

●This highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters. To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency under light-load and zero-load conditions.

●Features

●ƒ Linearly Decreasing PWM Frequency

●ƒ Green Mode Under Light-Load and Zero-Load Conditions

●ƒ Constant Voltage (CV) and Constant Current (CC)

●ƒ No Secondary Feedback

●ƒ Low Startup Current: 8μA

●ƒ Low Operating Current: 3.6mA

●ƒ Leading-Edge Blanking

●ƒ Constant Power Limit

●ƒ Universal AC Input Range

●ƒ Synchronized Slope Compensation

●ƒ 140°C OTP Sensor with Hysteresis

●ƒ VDDOver-Voltage Clamping

●ƒ Cycle-by-Cycle Current Limiting

●ƒ Under-Voltage Lockout (UVLO)

●ƒ Fixed PWM Frequency with Hopping

●ƒ Gate Output Maximum Voltage Clamped at 17V

●ƒ Small SSOT-6 Package

●Applications

●General-purpose, switching mode, power supplies and flyback power converters, such as:

●ƒ Battery Chargers for Cellular Phones, Cordless Phones, PDAs, Digital Cameras, Power Tools

●ƒ Power Adapters for Ink Jet Printers, Video Game Consoles, Portable Audio Players

●ƒ Open-Frame SMPS for TV/DVD Standby and Auxiliary Supplies, Home Appliances, Consumer

●Electronics

●ƒ Replacement for Linear Transformers and RCC SMPS

●ƒ PC 5V Standby Power