Description

The highly integrated FAN6753 PWM controller provides several features to enhance the performance of flyback converters.

Features

■ High-Voltage Startup

■ Low Operating Current: 2.7mA

■ Adaptive Decreasing PWM Frequency to 22KHz

■ Built-in Full-Range Frequency Hopping to Reduce EMI Emission

■ Fixed PWM Frequency: 65KHz

■ Peak-Current-Mode Control

■ Cycle-by-Cycle Current Limiting

■ Leading-Edge Blanking (LEB)

■ Synchronized Slope Compensation

■ Internal Auto-Recovery Open-Loop Protection

■ GATE Output Maximum Voltage Clamp: 18V

■ VDD Under-Voltage Lockout (UVLO)

■ VDD Over-Voltage Protection (OVP), Auto Recovery / Latch for Option

■ Internal Auto-Recovery Sense Short-Circuit Protection for Option

■ Constant Power Limit (Full AC Input Range)

■ Internal OTP Sensor with Hysteresis

■ Built-in 5ms Soft-Start Function

■ Built-in LATCH Pin Pull HIGH (> 5.2V) Latch Function

Applications

General-purpose switch-mode power supplies and flyback power converters, including:

■ Power Adapters

■ Open-Frame SMPS