1. Description
This highly integrated PWM controller provides several features to enhance the performance of flyback converters.To minimize standby power consumption,a proprietary adaptive green-mode function reduces switching frequency at light-load condition. To avoid acousticnoise problems, the minimum PWM frequency is set above 23 kHz. This green-mode function enables the power supply to meet international power conservation requirements, such as Energy Star?.With the internal high-voltage startup circuitry, the power loss caused by bleeding resistors is also eliminated. To further reduce power consumption, FAN6755W/UW uses the BiCMOS process, which allows an operating current of only2 mA.The standby power consumption can be under 100 mW for most of LCD monitor power supply designs.
2.Features
> Proprietary Asynchronous Frequency Hopping Technique that Reduces EMI
> Fixed PWM Frequency: 65 kHz (FAN6755W),130 kHz (FAN6755UW)
> Internal Leading-Edge Blanking
> Built-in Synchronized Slope Compensation
> Soft Gate Drive with Clamped Output Voltage: 18 V
> VDD Under-Voltage Lockout (UVLO)
> Programmable Constant Power Limit(Full AC Input Range)
> Internal OTP Sensor with Hysteresis
https://www.utsource.net/ic-datasheet/FAN6755U-1917521.html