Fairchild Semiconductor FAN103W
the FAN103W, a charger can be implemented with few external components and minimized cost.FEATURES
● Low Standby Power Under 30mW● High Voltage Startup
● Fewest External Component Counts
● Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry
● Green-Mode Function: Linearly-Decreasing PWM Frequency
● Fixed PWM Frequency at 50kHz with Frequency Hopping to Solve EMI Problem
● Cable Compensation in CV Mode
● Peak-Current-Mode Control in CV Mode
● Cycle-by-Cycle Current Limiting
● VDD Over-Voltage Protection with Auto Restart
● VDD Under-Voltage Lockout (UVLO)
● Gate Output Maximum Voltage Clamped at 15V
● Fixed Over-Temperature Protection with Auto Restart
● Available in the 8-Lead SOP Package
APPLICATIONS
● Battery chargers for cellular phones, cordless phones, PDA, digital cameras, power tools, etc.● Replaces linear transformer and RCC SMPS
DESCRIPTION
This third-generation Primary-Side-Regulation (PSR) and highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters. The proprietary topology, TRUECURRENT®, of FAN103W enables precise CC regulation and simplified circuit for battery charger applications.