1.20MHz,3V-24V Input High Efficiency Boost White LED Driver升压转换器,用于驱动多达7个系列的白色发光二极管,是由一个单细胞的锂离子电池CXLE8285采用电流模式固定频率的结构来调节LED电流这是通过一个外部电流检测电阻测量低电压200mV的反馈降低功率损耗和提高效率。

   产品概述 返回TOPzhK嘉泰姆

The CXLE8285 a step-up converter designed for driving up to 7 series white LEDs from a single cell Lithium Ion battery. The CXLE8285 uses current mode, fixed frequency architecture to regulate an LED current, which is measured through an external current sense resistor. Its low 200mV feedback voltage reduces power loss and improves efficiency.The CXLE8285 includes under-voltage lockout,current limiting and thermal overload protection preventing damage in the event of an output overload.Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency. Internal soft start function can reduce the inrush current. Tiny package type provide the best solution for PCB space saving and total BOM cost.

      CXLE8285是一个升压转换器,用于驱动多达7个系列的白色发光二极管,是由一个单细胞的锂离子电池。该CXLE8285采用电流模式，固定频率的结构来调节LED电流，这是通过一个外部电流检测电阻测量。低电压200mV的反馈，降低功率损耗和提高效率。</span>

   产品特点 返回TOPzhK嘉泰姆

High Efficiency: Up to 90%zhK嘉泰姆

1.20MHz Constant Frequency OperationzhK嘉泰姆

Integrated internal Power MOSFETzhK嘉泰姆

Drives up to 7 Series WLEDszhK嘉泰姆

Low 200mV Feedback VoltagezhK嘉泰姆

Soft-start/Dimming with wide Frequency RangezhK嘉泰姆

UVLO, Thermal ShutdownzhK嘉泰姆

Internal Current limitzhK嘉泰姆

Over Voltage ProtectionzhK嘉泰姆

Small LC FilterzhK嘉泰姆

Minimize the External ComponentzhK嘉泰姆

<1μA Shutdown CurrentzhK嘉泰姆

SOT23-6 Package*效率：高达90%zhK嘉泰姆

* 1.2MHz的固定频率操作</p>

*内部集成功率MOSFETzhK嘉泰姆

*驱动多达7颗白光LEDzhK嘉泰姆

*低200mV的电压反馈</p>

*软启动、调光频率范围宽zhK嘉泰姆

*欠压保护，热关机zhK嘉泰姆

*内部电流限制zhK嘉泰姆

*过电压保护</p>

*小的LC滤波器</p>

*减少外部元件zhK嘉泰姆

*＜1μ关断电</p>

*SOT23 - 6封装zhK嘉泰姆

   应用范围 返回TOPzhK嘉泰姆

zhK嘉泰姆

Camera Flash White LEDzhK嘉泰姆

Mobile Phone, Smart Phone LED BacklightzhK嘉泰姆

PDA LEDzhK嘉泰姆

BacklightzhK嘉泰姆

Digital Still CameraszhK嘉泰姆

CamcorderzhK嘉泰姆

*照相机闪光灯的白光LEDzhK嘉泰姆

*手机，智能手机LED背光zhK嘉泰姆

* PDA LED背光zhK嘉泰姆

*数码相机zhK嘉泰姆

*摄像机</span>zhK嘉泰姆

   技术规格书（产品PDF) 返回TOP zhK嘉泰姆

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