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Fairchild 公司的FAN6756是接纳创新mWSaver™技能的绿色模式PWM控制器,能大大地低落待机和无负载功耗,满意世界范围的待机模式效率指引.在230VAC时待机和无负载功耗为30mW(包罗EMI滤波器功耗),具有多种掩护如过载/开路掩护(OLP),UVLO,VDD OVP,超温掩护(OTP)和电流检测短路掩护(SSCP),主要用于条记本电脑,打引机,LCD监督器,游戏机控制台.本京电港论坛文章先容了FAN6756主要特点,方框架图,典范应用电路以及FAN6765MR评估板指标,电路原理图纸,质料清单和PCB线路板元件结构图. The FAN6756 is a next-generation Green Mode PWM controller with innovative mWSaver™ technology, which dramatically reduces standby and no-load power consumption, enabling conformance to worldwide Standby Mode efficiency guidelines. An innovative AX-CAP™ method minimizes losses in the EMI filter stage by eliminating the X-cap discharge resistors while meeting IEC61010-1 safety requirements. Standby Mode clamps feedback voltage and modulates feedback impedance with an impedance Protections ensure safe operation of power system in various abnormal conditions. Proprietary frequencyhopping function decreases EMI emission and built-in synchronized slope compensation allows more stable Peak-Current-Mode control over wide range of input voltage and load conditions. The proprietary internal line compensation ensures constant output power limit over entire universal line voltage range. Requiring a minimum number of external components, FAN6756 provides a basic platform that is well suited for cost-effective flyback converter designs that require extremely low standby power consumption. FAN6756主要特点: Single-Ended Topologies, such as Flyback and Forward Converters mWSaver™ Technology - Achieves Low No-Load Power Consumption: Less than 30mW at 230VAC (EMI Filter Loss Included) - Eliminates X Capacitor Discharge Resistor Loss with AX-CAP™ Technology - Linearly Decreases Switching Frequency to 23KHz - Burst Mode Operation at Light-Load Condition - Impedance Modulation in Standby Mode for “Deep” Burst Mode Operation - Low Operating Current (450μA) in Standby Mode - 500V High-Voltage JFET Startup Circuit to Eliminate Startup Resistor Loss Highly Integrated with Rich Features - Proprietary Frequency Hopping to Reduce EMI - High-Voltage Sampling to Detect Input Voltage - Peak-Current-Mode Control with Slope Compensation - Cycle-by-Cycle Current Limiting with Line Compensation - Leading Edge Blanking (LEB) - Built-In 8ms Soft-Start Advanced Protections - Brown-In/Brownout Recovery - Internal Overload/Open-Loop Protection (OLP) - VDD Under-Voltage Lockout (UVLO) - VDD Over-Voltage Protection (VDD OVP) - Over-Temperature Protection (OTP) - Current-Sense Short-Circuit Protection (SSCP) FAN6756应用: Flyback power supplies that demand extremely low standby power consumption, such as: Adapters for Notebooks, Printers, Game Consoles, etc. Open-Frame SMPS for LCD TV, LCD Monitors, Printer Power, etc.
FAN6765MR评估板 This user guide supports the evaluation kit for the FAN6765MR.This document describes a 65W power supply using FAN6756MR. The FAN6756MR mWSaver™ controller targets power adapters that demand extremely low standby power consumption. With innovative mWSaver™ technology, FAN6756MR dramatically reduces standby and no-load power consumption. The AX-CAP™ technology minimizes losses in the EMI filter stage by eliminating the X-cap discharge resistors while meeting IEC61010-1 safety requirements. Standby Mode switches feedback impedance during Burst Mode operation, which forces the system to operate in a “Deep” Burst Mode with minimum switching losses. Proprietary asynchronous jitter decreases EMI emission and built-in synchronized slope compensation allows more stable Peak-Current-Mode control over a wide range of input voltage and load conditions. FAN6765MR评估板指标: Single-Ended Topologies, such as Flyback and Forward Converters mWSaver™ Technology - Achieves Low No-Load Power Consumption: Less than 30mW at 230VAC (EMI Filter Loss Included) - Eliminates X Capacitor Discharge Resistor Loss with AX-CAP™ Technology - Linearly Decreases Switching Frequency to 23KHz - Burst Mode Operation at Light-Load Condition - Impedance Modulation in Standby Mode for “Deep” Burst Mode Operation - Low Operating Current (450μA) in Standby Mode - 500V High-Voltage JFET Startup Circuit to Eliminate Startup Resistor Loss Highly Integrated with Rich Features - Proprietary Asynchronous-Jitter to Reduce EMI - High-Voltage Sampling to Detect Input Voltage - Peak-Current-Mode Control with Slope Compensation - Cycle-by-Cycle Current Limiting with Line Compensation - Leading Edge Blanking (LEB) - Built-In 8ms Soft-Start Advanced Protections - Brown-In/Brownout Recovery - Internal Overload/Open-Loop Protection (OLP) - VDD Under-Voltage Lockout (UVLO) - VDD Over-Voltage Protection (VDD OVP) - Over-Temperature Protection (OTP) - Current-Sense Short-Circuit Protection (SSCP)
FAN6765MR评估板质料清单(BOM): |
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