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| 型号： | SP6682EU-L |
| 厂商： | Exar Corporation |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC LED CHARGE PUMP 10MSOP |
| 标准包装： | 50 |
| 拓扑： | PWM，升压（升压），切换式电容器（充电泵） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 420kHz ~ 780kHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 1016-1219-5 |
S P 6 6 8 2
H i g h E f f i c i e n c y W h i t e L E D C h a r g e P u m p R e g u l a t o r
February 2009
GENERAL DESCRIPTION
The SP6682 is a current regulated charge
pump ideal for converting a Li-Ion battery
input for driving white LEDs used in
backlighting color displays or cell phone
camera flash applications.
The charge pump automatically switches
between x1.5 and x2 modes based on the
program-mable VMODE voltage, providing
improved efficiency over traditional methods
using charge pump doubler followed by LDO.
This input voltage threshold can be externally
programmed by a resistor divider network for
optimized efficiency at specific output voltages
and currents.
The SP6682 operates with an internal 600kHz
clock, which reduces switching noise and
improves V OUT ripple. Output current or
voltage can be accurately regulated by
modulating the switcher between the charge
pump and output capacitor. In shutdown
mode, the IC disconnects the output from the
input and draws less than 1.5 μ A current.
The SP6682 is offered in a 10-pin MSOP
package, and a small 10-Pin DFN Package.
Rev. 2.0.0
APPLICATIONS
? Mobile Phones & PDAs
? 3.3V to 5V Conversion
? Palmtop Computers
? Color LCD Modules
FEATURES
? 200mA Output Current
? Low Profile Inductorless Regulator
? 600KHz Oscillator
? x1.5 and x2 Conversion Modes
? 2.7V to 5.5V Input Voltage Range
? Fast Turn-on Time 175μs
? 1mA Quiescent Current
? Adjustable Output Current and Voltage
? PWM Dimming Control
? True Shutdown Disconnect
? Soft Start
? 10-pin MSOP and 10-pin DFN Packages
TYPICAL APPLICATION DIAGRAM
Fig. 1: SP6682 LCD Backlighting 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 |
|---|---|
| SP6682EU-L/TR | 功能描述:电荷泵 High Efficiency for White LEDs RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| SP6682UEB | 功能描述:电源管理IC开发工具 Eval Board for SP6682U Series RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| SP6683 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:High Power LED Driver for Parallel Configuration |
| SP6683EB | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP6683ER | 制造商:Exar Corporation 功能描述:Driver, Other |
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