SP6685

更新时间： 2024-02-19 19:38:29

品牌	Logo	应用领域
艾科嘉 - EXAR		驱动器泵
页数	文件大小	规格书
14页	560K
描述
700mA Buck/Boost Charge Pump LED Driver

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技术参数
数据手册

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SP6685 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	WAFER	Reach Compliance Code：	unknown
风险等级：	5.81	模拟集成电路 - 其他类型：	SWITCHED CAPACITOR REGULATOR
最大输入电压：	5.5 V	最小输入电压：	2.7 V
标称输入电压：	3.6 V	JESD-30 代码：	R-XUUC-N
功能数量：	1	最高工作温度：	70 °C
最低工作温度：		封装主体材料：	UNSPECIFIED
封装代码：	DIE	封装形状：	RECTANGULAR
封装形式：	UNCASED CHIP	认证状态：	Not Qualified
表面贴装：	YES	切换器配置：	DOUBLER INVERTER
最大切换频率：	2400 kHz	温度等级：	COMMERCIAL
端子形式：	NO LEAD	端子位置：	UPPER
Base Number Matches：	1

SP6685 数据手册

SP6685

700mA Buck/Boost Charge Pump LED Driver

June 2009

Rev. 2.0.0

GENERAL DESCRIPTION

APPLICATIONS

The SP6685 is a current-regulated charge

pump ideal for powering high brightness LEDs

for camera flash applications.

• White LED Torch/Flash for Cell Phone,

DSCs and Camcorders

• White LED Backlighting

The charge pump can be set to regulated two

current levels for FLASH and TORCH modes.

The SP6685 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.

• Generic Lighting/Flash Application

• General Purpose High Current Boost

FEATURES

• Output Current up to 700mA

• Up to 94% Efficiency in Torch Mode

The SP6685 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.

• Minimum External Components:

No Inductor

• Adjustable FLASH Mode Current

• 1x and 2x Charge Pump Operation

• 2.4MHz High Frequency Operation

• I_Q< 1µA in Shutdown

• Built-In Soft Start Limit Inrush Current

• Output Overvoltage Protection

• Over current/Temperature Protection

• 10pin 3x3mm DFN Package

TYPICAL APPLICATION DIAGRAM

Fig. 1: SP6685 Application Diagram

Exar Corporation

www.exar.com

48720 Kato Road, Fremont CA 94538, USA

Tel. +1 510 668-7000 – Fax. +1 510 668-7001

12 3 4 5 6 7...14

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