FAN104W Datasheet | Fairchild Semiconductor

Features - Achieves <30 m W; Energy Star’s 5-Star Level - Proprietary 500 V High-Voltage JFET Startup Reduces Startup Resistor Loss - Low Operation Current in Burst Mode: 600 µA - Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry - Green Mode: PWM Frequency Linearly-Decreasing - PWM Frequency at 85 k Hz with Frequency Hopping to Solve EMI Problem - Boundary-Conduction-Mode (BCM) Operation at Lower AC Input Voltage - Cable pensation in CV Mode - Cycle-by-Cycle Current Limiting - Gate Output Maximum Voltage Clamped at 14 V - VDD Under-Voltage Lockout (UVLO) Available - Built-in Protections: - Output Short-Circuit Protection - Output Over-Voltage-Protection (VSOVP) with Latch Mode - VDD Over-Voltage-Protection (VDD OVP) - CS Pin Single-Fault Protection - VS Pin single-Fault Protection - Over-Temperature-Protection (OTP) with Latch Mode - SOIC Package 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 lowercost, smaller, and lighter charger pared to a conventional design or a linear transformer. To minimize standby power consumption, a proprietary green-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. By using FAN104W, a charger can be implemented with few external ponents and minimized cost. An output CV/CC characteristic envelope is shown in Figure 1. Applications - Battery chargers for smart phones, Pad, PDA, digital cameras. - Best choice to replace linear transformer and RCC SMPS Figure 1. Typical Output V-I Characteristic Ordering Information Part Number FAN104WMX Operating Temperature...