FAN6742MR

Highly Integrated Green-Mode PWM Controller 

Description The highly integrated SG6742ML/MR PWM controller provides several features to enhance the performance of flyback converters. 

Features

ƒHigh-Voltage Startup

ƒLow Operating Current: 2.7mA

ƒLinearly Decreasing PWM Frequency to 22KHz

ƒFrequency Hopping to Reduce EMI Emission

ƒFixed PWM Frequency: 65KHz

ƒPeak-Current-Mode Control

ƒCycle-by-Cycle Current Limiting

ƒLeading-Edge Blanking

ƒSynchronized Slope Compensation

ƒInternal Open-Loop Protection

ƒGATE Output Maximum Voltage Clamp: 18V

ƒVDD Under-Voltage Lockout (UVLO)

ƒVDD Over-Voltage Protection (OVP)

ƒProgrammable Over-Temperature Protection (OTP)

ƒInternal Latch Circuit (OVP, OTP)

ƒInternal Sense Short-Circuit Protection

ƒBuild-in 5ms Soft-Start Function

ƒConstant Power Limit (Full AC Input Range)

ƒInternal OTP Sensor with Hysteresis

Applications

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

ƒPower Adapters

ƒOpen-Frame SMPS