Description

This third-generation Primary Side Regulation (PSR) PWM controller combination power MOSFET,

FSEZ1307, provides several features to enhance the performance of low-power flyback converters. The proprietary topology, TRUECURRENT™, enables precise CC regulation and simplified circuit design for battery-charger applications. Compared to a conventional design or a linear transformer, a low-cost, smaller, and lighter charger results.

Features

Low Standby Power: Under 30mW

High-Voltage Startup

Few External Components

Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry

Green Mode: 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 7-Lead SOP Package