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FAN6757

Fairchild Semiconductor
Part Number FAN6757
Manufacturer Fairchild Semiconductor
Description PWM Controller
Published Feb 15, 2016
Detailed Description FAN6757— mWSaver® PWM Controller FAN6757— mWSaver® PWM Controller November 2013 Features  Single-Ended Topologies, s...
Datasheet PDF File FAN6757 PDF File

FAN6757
FAN6757

Overview
FAN6757— mWSaver® PWM Controller FAN6757— mWSaver® PWM Controller November 2013 Features  Single-Ended Topologies, such as Flyback and Forward Converters  mWSaver® Technology - Achieves Low No-Load Power Consumption: <50 mW at 230 VAC (EMI Filter Loss Included) - Eliminates X Capacitor Discharge Resistor Loss with AX-CAP® Technology - Linearly Decreases Switching Frequency to 23 kHz - Burst Mode Operation at Light-Load Condition - 500 V 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 7 ms 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) Description The FAN6757 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 X-cap discharge resistors while meeting IEC61010-1 safety requirements.
Protections ensure safe operation of the power system in various abnormal conditions.
A proprietary frequencyhopping function decreases EMI emission.
Built-in synchronized slope compensation allows more stable Peak-Current-Mode control over a wide range of input voltage and load conditions.
The proprietary internal line compensation ensures constant output power limit over the entire universal line voltage range.
Requiring a minimum number of external components, FAN6757 provides a basic platform that is well suited fo...


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