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Features
● Internal High-Voltage Startup
● Low Operating Current (Maximum: 2mA)
● Adaptive Decreasing of PWM Frequency to 23KHz at Light-Load condition to Improve Light-Load Efficiency
● Frequency Hopping to Reduce EMI Emission
● Fixed PWM Frequency: 65KHz
● Internal Leading-Edge Blanking
● Built-in Synchronized Slope Compensation
● Auto-Restart Protection : Feedback Open-Loop Protection (OLP), VDD Over-Voltage Protection (OVP), Over-Temperature Protection (OTP), and Line Over-Voltage Protection
● Soft Gate Drive with Clamped Output Voltage: 18V
● VDD Under-Voltage Lockout (UVLO)
● Programmable Constant Power Limit (Full AC Input Range)
● Internal OTP Sensor with Hysteresis
● Build-in 5ms Soft- Start Function
● Input Voltage Sensing (VIN Pin) for Brown-in/out Protection with Hysteresis and Line Over-Voltage Protection
Applications
General-purpose switched-mode power supplies and flyback power converters, including:
● LCD Monitor Power Supply
● Open-Frame SMPS
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 acoustic-noise problems, the minimum PWM frequency is set above 23kHz. 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, FAN6755 uses the BiCMOS process, which allows an operating current of only 2mA. The standby power consumption can be under 100mW for most of LCD monitor power supply designs.
FAN6755 integrates a frequency-hopping function that reduces EMI emission of a power supply with minimum
line filters. lts built-in synchronized slope compensation achieves a stable peak-current-mode control and improves noise immunity. The proprietary, external line compensation ensures constant output power limit over a wide AC input voltage range from 90VAC to 264VAC.
FAN6755 provides many protection functions. The internal feedback open-loop protection circuit protects the power supply from open feedback loop condition or output short condition. It also has line under-voltage protection (brownout protection) and over-voltage protection using an input voltage sensing pin (VIN).
FAN6755 is available in a 7-pin SOP package.
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gezir
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very good!
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04/20/2018
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Returns are normally accepted when completed within 60 days from the date of the parcel delivered.
Defective ( Please provide a third party quality report of nonconforming products)
Return Freight charges must be prepaid; we will not accept COD shipments.
Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
FAN6755
FAN6755 has several brands around the world that may have alternate names for FAN6755 due to regional differences or acquisition. FAN6755 may also be known as the following names:
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