Primary-Side-Regulation PWM
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FSEZ1307 — Primary-Side-Regulation PWM with Power MOSFET Integrated
February 2010
FSEZ1307 Primar...
Description
www.DataSheet4U.com
FSEZ1307 — Primary-Side-Regulation PWM with Power MOSFET Integrated
February 2010
FSEZ1307 Primary-Side-Regulation PWM with Power MOSFET Integrated
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
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. To minimize standby power consumption, the proprietary green mode 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 the FSE...
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