Description

The FAN302HLMY_F117 advanced PWM controller significantly simplifies isolated power supply design that requires CC regulation of the output. The output current is precisely estimated with information in the primary side of the transformer and controlled with an internal compensation circuit. This removes the output current sensing loss and eliminates all external Control Circuitry (CC). The Green-Mode function, with an extremely low operating current (200µA) in Burst Mode, maximizes the light-load efficiency, enabling conformance to worldwide Standby Mode efficiency guidelines.

Features

mWSaver™ Technology Provides Industry’s Best-in-Class Standby Power

- Achieves <10mW Below Energy Star’s 5-Star Level: <30mW

- Proprietary 500V High-Voltage JFET Startup Reduces Startup Resistor Loss

- Low Operation Current in Burst Mode: 350µA Maximum

Constant-Current (CC) Control without Secondary Feedback Circuitry

Fixed PWM Frequency at 85kHz with Frequency Hopping to Reduce EMI

High-Voltage Startup

Low Operating Current: 3.5mA

Peak-Current-Mode Control with Slope Compensation

Cycle-by-Cycle Current Limiting

VDD Over-Voltage Protection (Auto-Restart)

VS Over-Voltage Protection (Latch Mode)

VDD Under-Voltage Lockout (UVLO)

Gate Output Maximum Voltage Clamped at 15V

Fixed Over-Temperature Protection (Latch Mode)

Available in an 8-Lead SOIC Package

Applications

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

Replaces Linear Regulators and RCC SMPS