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FSEZ1216 Datasheet Primary-side-regulation Pwm Integrated Power MOSFET

Manufacturer: Fairchild (now onsemi)

Overview: FSEZ1216 — Primary-Side-Regulation PWM Integrated Power MOSFET April 2009 FSEZ1216 — Primary-Side-Regulation PWM Integrated Power.

General Description

The primary-side PWM integrated Power MOSFET, FSEZ1216, significantly simplifies power supply design that requires CV and CC regulation capabilities.

FSEZ1216 controls the output voltage and current precisely only with the information in the primary side of the power supply, not only removing the output current sensing loss, but also eliminating all secondary feedback circuitry.

The green-mode function with a low startup current (10µA) maximizes the light load efficiency so the power supply can meet stringent standby power regulations.

Key Features

  • Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry Green Mode: Frequency Reduction at Light-Load Fixed PWM Frequency at 42kHz with Frequency Hopping to Reduce EMI Cable Voltage Drop Compensation in CV Mode Low Startup Current: 10μA Low Operating Current: 3.5mA Peak-Current-Mode Control in CV Mode Cycle-by-Cycle Current Limiting VDD Over-Voltage Protection with Auto-Restart VDD.

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