When you consider that cell phone chargers typically sit plugged in and unused most of the time, yet still drawing power from the grid, the problem facing design engineers is clear – how can standby power be reduced in these devices, thereby saving energy and meeting government regulations?
Visit the Fairchild booth, #209, at APEC 2011, to view a solution that meets this challenge by providing ultra-low standby power under 10mW for Charger applications.
The FAN302HL, a highly integrated PWM controller, includes several features that enhance the performance of general flyback converters. The constant-current control, proprietary topology enables simplified circuit designs without secondary feedback circuitry for battery-charger applications. A proprietary Burst-Mode function with low operation current minimizes standby power consumption.
The FAN302HL controller also provides several protections. Cycle-by-cycle current limiting ensures the fixed peak current limit level, even if a short circuit occurs. The gate output is clamped at 15V to protect the power MOS from high gate-source voltage conditions. If either VS OVP or internal OTP is triggered, the circuit enters Latch Mode until AC power is removed. Using the FAN302HL, a charger can be implemented with few external components and minimized cost, compared to a conventional design or a linear transformer.
Come to APEC 2011, booth 209, to learn more about the company’s innovative mWSaver™ technology offering best-in-class power savings for power supplies, with the fewest possible components.
Fairchild Semiconductor: The Right Technology for Your Success™.
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This post is also available in: Chinese (Simplified)