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| FP7201 Constant Current Switching Regulator for White LED |
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General Description |
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The FP7201 is a Boost DC-DC converter specifically designed to drive white light LEDs with constant current. The device can support 2 to 5 white light 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 FP7201 is available in the TSOT23-6L package and provides space-saving PCB for diverse application fields.
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Features |
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˙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
˙Zero Shutdown Current
˙Adjustable Output up to 24V
˙Package: TSOT23-6L
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Typical Application Circuit |
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| FP7201恒流白光LED电流的开关稳压器 |
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概述 |
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FP7201是专为恒流驱动白光LED的升压DC - DC转换器 。该设备可以支持2至5白色背光和相机闪烁发光二极管。这个高效率的稳压器和内部补偿网络，最大限度地减少为5个外部元件数量。优化运行频率可以达到小的LC滤波器值和低操作电流，高效率的要求。误差放大器的非反相输入端连接到一个0.25V精密基准电压和内部软启动功能，可减少浪涌
电流。FP7201是在TSOT23 - 6L封装和节省空间的PCB提供了多样化的应用领域。
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特点 |
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过电压保护˙精密反馈参考电压：0.25V 欠压锁定保护（4％）˙ ˙ ˙ ˙频率范围宽，亮度与过温保护零浪涌电流˙内部软启动˙零关断电流 ˙可调输出24V ˙包装：TSOT23 - 6L
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典型应用电路 |
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