FAN104W中文资料高频率初级侧调节 PWM 控制器数据手册ONSEMI规格书

描述 Description

This highly integrated PWM controller, FAN104W, provides several features to enhance the performance of low-power flyback converters. The proprietary topology of FAN104W enables simplified circuit design for battery charger applications. The result is a lower-cost, smaller, and lighter charger compared to a conventional design or a linear transformer.

To minimize standby power consumption,a proprietarygreen-mode function provides off-time modulation to linearly decrease PWM frequency under light-load conditions. Green Mode assists the power supply in meeting power conservation requirements.\r

特性 Features

• Achieves <30 mW; Energy Star's 5-Star Level
• Proprietary 500 V High-Voltage JFET Startup Reduces Startup Resistor Loss
• Low Operation Current in Burst Mode:600 uA
• Constant-Voltage(CV) and Constant-Current(CC) Control without Secondary-Feedback Circuitry
• Green Mode: PWM Frequency Linearly-Decreasing
• PWM Frequency at 85 kHz with Frequency Hopping to Solve EMI Problem
• Boundary-Conduction-Mode(BCM) Operation at Lower AC Input Voltage
• Cable Compensation in CV Mode
• Cycle-by-Cycle Current Limiting
• Gate Output Maximum Voltage Clamped at 14V
• Voo Under-Voltage Lockout (UVLO) Available
• Built-in Protections:
-Output Short-Circuit Protection
-Output Over-Voltage-Protection (VSOVP) with Latch Mode
-Voo Over-Voltage-Protection(Voo OVP)
-CS Pin Single-Fault Protection-VS Pin single-Fault Protection
-Over-Temperature-Protection (OTP) with Latch Mode
• SOIC Package

应用 Application

• Battery chargers for smart phones, Pad, PDA, digital cameras.
• Best choice to replace linear transformer and RCC SMPS