FAN6757: mWSaver™ PWM Controller for Flyback Converter, 65KHz, X-Cap discharge
Description: The FAN6757 is a next-generation Green Mode PWM co...
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 frequency-hopping 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 for cost-effective flyback converter designs that require extremely low standby power consumption.
Single-Ended Topologies, such as Flyback and Forward Converters
Achieves Low No-Load Power Consumption: <30 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
VDD Under-Voltage Lockout (UVLO)
Internal Overload / Open-Loop Protection (OLP)
Over-Temperature Protection (OTP)
VDD Over-Voltage Protection (VDD OVP)
Current-Sense Short-Circuit Protection (SSCP)
This product is general usage and suitable for many different applications.
Technical Documentation & Design Resources
Availability and Samples
Compliance: Pb-free Halide free
Description: mWSaver™ PWM Controller for Flyback Converter, 65KHz, X-Cap discharge
Package Type: SOIC-8
Package Case Outline: 751EB
Container Type: REEL
Container Qty: 2500
Market Leadtime (weeks):4 to 8
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