Primary Side Regulation PWM Integrated Power MOSFET
Jun 8, 2009 3:49 PM
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Fairchild's FSEZ1216 PWM controller provides several features to enhance the performance of low-power flyback converters. The proprietary topology of FSEZ1216 enables simplified circuit design for battery charger applications. A low-cost, smaller, and lighter charger results when compared to a conventional design or a linear transformer. The startup current is only 10ľA, which allows use of 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. Using FSEZ1216, a charger can be implemented with few external components and minimized cost.
FSEZ1216 controller is available in an 8-pin DIP package.
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