CXLE8105是一个升压型DC-DC转换器,专门设计用于驱动恒流白光LED。该设备可支持2至5个白光LED背光和相机闪烁。这种高效的调节器和内部补偿网络可将5个外部元件的数量减至最少。优化后的工作频率能满足LC滤波器值小、工作电流小、效率高的要求。误差放大器的非逆变输入端与0.25V的精密参考电压相连,内部软启动功能可降低励磁涌流。
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[ CXLE8105 ]"
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载(PDF文档)
一.产品概述
The CXLE8105 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 CXLE8105 is available in the TSOT23-6L package and provides space-saving PCB for diverse application fields
二.产品特点
˙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
三.应用范围
Ø Smart Phone LED Backlights
Ø Digital Cameras
Ø Camcorders
Ø PDA LED Backlights
四.技术规格书(产品PDF)
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五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
WHITE LED DRIVERS | ||||||||||
Part No. | VIN | VOUT | # of | Driver | Feedback | Switching | Notes | Package | Status | |
(Min) | (Max) | (Max) | LEDs | Current | Voltage | Frequency | ||||
(V) | (V) | (Max) | (A) | (V) | (kHz) | |||||
CXLE8101 | 3.6 | 28 | 25 | 6 | 2 | 0.25 | 320 | 100% Duty | SOP8 | MP |
CXLE8102 | 3.6 | 28 | 25 | 6 | 3 | 0.25 | 320 | 100% Duty | SOP8 | MP |
CXLE8103 | 7 | 26 | 26 | 7 | 0.7 | NA | NA | SOT23-5 | MP | |
CXLE8104 | 7 | 26 | 26 | 7 | 1 | NA | NA | SOT89-5 | MP | |
CXLE8105 | 2.7 | 5.5 | 20 | 5 | 0.75 | 0.25 | 1200 | SOT23-6 | MP | |
CXLE8106 | 8.5 | 100 | VIN*0.9 | VIN*0.9 | ILED | 0.25 | Auto | Buck | SOP8 | MP |