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.
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
DVD/Set Top Boxes
Technical Documentation & Design Resources
Availability and Samples
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
Container Type: REEL
Container Qty: 2500
Market Leadtime (weeks):8 to 12
VCC Min (V):
VCC Max (V):
fSW Typ (kHz):
SOIC8 N Missing Pin 7