- . z. Fairchild FAN302HL 5W手机充电器解决方案 关键词：电源管理,DC/DC转换器,DC/DC转换器,手机充电器 Fairchild公司的FAN30215V to protect the power MOS from high gate-source voltage conditions. If either VS OVP or internal OTP is triggered, the circuit enters Latch Mode until AC power is FAN302HL, a charger can be implemented with few e*ternal ponents and minimized cost, pared to a conventional design or a linear :§mWSaver™ Technology Provides Industry’s Bestin-Class Standby Power- Achieve Under 10mW; Far Below Energy Star’s 5-Star Level (<30mW)- Proprietary 500V High-Voltage JFET Startup Reduces Startup Resistor Loss- Low Operation Current in Burst Mode: Ma*imum 350μA§ Constant-Current (CC) Control without Secondary-Feedback Circuitry§ Fi*ed PWM Frequency at 85kHz with Frequency Hopping to Solve EMI Problem§ Low Operating Current: § Peak-Current-Mode Control in CV Regulation§ Cycle-by-Cycle Current Limiting§ VDD Over-Voltage Protection (Auto-Restart)§ VS Over-Voltage Protection (Latch Mode)§ VDD Under-Voltage Lockout (UVLO)§ Gate Output Ma*imum Voltage Clamped at 15V§ Fi*ed Over-Temperature Protection (Latch Mode)§ Available in an 8-Lead SOIC PackageFAN302HL应用:Battery chargers for cellular phones, cordless phones, PDA, digital cameras, and power linear transformers and RCC SMPS. - . z. 图1. FAN
