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发布者:远翔 发布时间:2013-2-21 阅读:3486次    关键字: LED FP7102
FP7202-Constant Current White LED Driver


FP7202 Constant Current Switching Regulator for White LED
General Description
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      The FP7202 is a Boost DC-DC converter specifically designed to drive white LEDs with constant current. The device can support 2 to 7 white LEDs for backlighting and camera flashing. This high efficient regulator and internal compensation network minimizes as 5 external component counts. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency. The non-inverting input of error amplifier connects to a 0.25V precision reference voltage and internal soft-start function can reduce the inrush current.
       The FP7202 is available in the TSOT23-6L package and provides space-saving PCB for diverse application fields.

 

Features
˙Precision Feedback Reference Voltage: 0.25V (4%)
˙Under Voltage Lockout Protection
˙Over Voltage Protection
˙Over Temperature Protection
˙Wide Frequency Range and Dimming with Zero-Inrush Current
˙Internal Soft-Start
˙Adjustable Output up to 26V
˙Package: TSOT23-6L

Typical Application Circuit

 

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