Fairchild FSEZ1216 PWM 5W电源应用方案
FSEZ1216 — Primary-Side-Regulation PWM Integrated Power MOSFET
This highly integrated PWM controller, FSEZ1216, 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 10μA, 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...
