FSEZ1016AMY

Primary Side PWM Controller 46kHz 7Pin SOIC N T/R

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.

Features

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

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Accurate Constant Current Achieved by Fairchild’s Proprietary TRUECURRENT® Technique

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Green-Mode Function: PWM Frequency Linearly Decreasing

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Fixed PWM Frequency at 42kHz with Frequency Hopping to Solve EMI Problems

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Cable Compensation in CV Mode

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Low Startup Current: 10µA

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Low Operating Current: 3.5mA

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Peak-Current-Mode Control in CV Mode

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Cycle-by-Cycle Current Limiting

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VDD Over-Voltage Protection OVP with Auto-Restart

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VDD Under-Voltage Lockout UVLO

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Fixed Over-Temperature Protection OTP with Latch

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SOIC-7 Package Available