FAN6605: mWSaver™ PWM Controller for Flyback Converter, 65KHz, Line OVP, Brown In/Out Protection

Description: This highly integrated PWM controller provides sev...
  • 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 switchingfrequency at light-load condition. To avoid acoustic-noise 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, FAN6605 uses the BiCMOS process, which allows an operating current of only 2 mA. The standby power consumption can be under 100 mW for most of LCD monitor power supply designs.
    FAN6605 integrates a frequency-hopping function that reduces EMI emission of a power supply with minimum line filters. The built-in synchronized slope compensation achieves a stable peak-current-mode control and improves noise immunity. The proprietary line compensation ensures constant output power limit over a wide AC input voltage range from 90 VAC to 264 VAC.
    FAN6605 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).
    FAN6605 is available in a 7-pin SOP package.
  • Features
  • mWSaver™ Technology Provides Industry’s Best-in-Class Standby Power
  • <100 mW at 25-mW Load for LCDM Adaptor
  • Internal High-Voltage JFET Startup
  • Low Operating Current: Under 2 mA
  • Adaptively Decrease PWM Frequency with Cycle Skipping to 23 kHz at Light-Load Condition for Better Efficiency
  • Feedback Impedance Switching During Minimum Load or No Load
  • Proprietary Asynchronous Frequency Hopping Technique that Reduces EMI
  • Fixed PWM Frequency: 65 kHz
  • 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: 18 V
  • VDD Under-Voltage Lockout (UVLO)
  • Programmable Constant Power Limit (Full AC Input Range)
  • Build-in 5-ms Soft-Start Function
  • Internal OTP Sensor with Hysteresis
  • Input Voltage Sensing (VIN Pin) for Brown-In/Out Protection with Hysteresis and Line Over-Voltage Protection
  • Applications
  • Consumer
  • Consumer Appliances
  • Desktop PC
  • DVD/Set Top Boxes
  • LCD Monitor
  • LCD TV
  • LED TV
  • Notebook PC
  • Smart Meter
  • STB
  • Technical Documentation & Design Resources
    Availability and Samples
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: mWSaver™ PWM Controller for Flyback Converter, 65KHz, Line OVP, Brown In/Out Protection
  • Package Type: SOIC8 N Missing Pin 7
  • Package Case Outline: 751EA
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):4 to 8
  • Arrow:0
  • Digikey:>1K
  • Specifications
  • Topology: Flyback 
  • Phases:
  • Control Mode: Current Mode 
  • VCC Min (V): 11 
  • VCC Max (V): 25 
  • fSW Typ (kHz): 65 
  • Package Type: SOIC8 N Missing Pin 7 
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