Primary-Side Regulation PWM with Power MOSFET Integrated

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Overview

This highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters. The proprietary topology of FSEZ1016A enables simplified circuit design especially for battery-charger applications. A low-cost, smaller, and lighter charger is the result when compared to a conventional design or a linear transformer. The startup current is only 10µA, which allows large startup resistance for further power saving.
To minimize the standby power consumption, the proprietary green-mode function provides off-time modulation to linearly decrease PWM frequency under light-load conditions. This green mode function assists the power supply in meeting power conservation requirements.
By using FSEZ1016A, a charger can be implemented with few external components and minimized cost. FSEZ1016A series controller is available in the 7-pin SOIC package.

  • Mobile Handsets
  • Lighting
  • Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry
  • Accurate Constant Current Achieved by Fairchild’s Proprietary TRUECURRENT® Technique
  • Green-Mode Function: PWM Frequency Linearly Decreasing
  • Fixed PWM Frequency at 42kHz with Frequency Hopping to Solve EMI Problems
  • Cable 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 (OVP) with Auto-Restart
  • VDD Under-Voltage Lockout (UVLO)
  • Fixed Over-Temperature Protection (OTP) with Latch
  • SOIC-7 Package Available

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FSEZ1016AMY

Last Shipments

Pb

A

H

P

SOIC8 N Missing Pin 7

3

260

REEL

2500

N

Flyback

1

Current Mode

15

17

43

Price N/A

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