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| 型号： | SP6686EB |
| 厂商： | Exar Corporation |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR SP6686 |
| 标准包装： | 1 |
| 系列： | * |
S P 6 6 8 6
4 0 0 m A B u c k / B o o s t C h a r g e P u m p L E D D r i v e r
August 2009
GENERAL DESCRIPTION
The SP6686 is a current-regulated charge
pump ideal for powering high brightness LEDs
for camera flash applications.
The charge pump can be set to regulate two
current levels for FLASH and TORCH modes.
The SP6686 automatically switches modes
between step-up and step-down ensuring that
LED current does not depend on the forward
voltage. A low current sense reference voltage
(50mV) allows the use of small 0603 current
sensing resistors.
The SP6686 is designed to operate from a
single cell lithium-ion battery or fixed 3.3V or
5.0V power rails and is available in a RoHS
compliant, “green”/halogen free space saving
10-pin 3mmx3mm DFN package
Rev. 2.0.0
APPLICATIONS
? White LED Torch/Flash for Mobile
Phones, DSCs and Camcorders
? Generic Lighting/Flash/Strobe
Applications
? White LED Backlighting
FEATURES
? Output Current up to 400mA
? Up to 94% Efficiency in Torch Mode
? Adjustable FLASH Mode
? x1 and x2 Automatic Modes for High
Efficiency
? Minimum External Components: No
Inductors
? 2.4MHz High Frequency Operation
? 1 μ A Shutdown Current
? Built-In Soft Start Limit Inrush Current
? Output Overvoltage Protection
? Over current/Temperature Protection
? 10-pin 3mm x 3mm DFN Package
TYPICAL APPLICATION DIAGRAM
Fig. 1: SP6686 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6686ER | 制造商:Exar Corporation 功能描述:Driver, Other |
| SP6686ER-L | 功能描述:LED照明驱动器 Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| SP6686ER-L/TR | 功能描述:LED照明驱动器 400mA Buck/Boost Charge Pump RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| SP6687 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP6687_06 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
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