Datasheet > MIC2299_11

MIC2299_11

更新时间： 2024-11-14 10:57:19

品牌	Logo	应用领域
麦瑞 - MICREL		驱动器
页数	文件大小	规格书
14页	539K
描述
3.5A Minimum, 2MHz High Brightness LED Driver

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MIC2299_11 数据手册

MIC2299

3.5A Minimum, 2MHz High Brightness

LED Driver

General Description

Features

The MIC2299 is a high power boost-switching regulator

that is optimized for constant-current control. The MIC2299

is capable of driving up to 2 series 1A white LED for

photoflash and other applications. The feedback voltage is

only 200mV, minimizing power dissipation in constant-

current control applications, and hence extends battery

life.

• Programmable current control

• 200mV ±10% feedback voltage

• 2.5V to 10V input voltage

• Output over-voltage protection (OVP)

• Output voltage up to 30V (max)

• Fixed 2MHz Operation

The MIC2299 has a brightness pin that allows for a

programmable torch mode as well as full flash with a

single pin when driving high current LEDs.

• Guaranteed 3.5A switch current over-temperature

• Solution size of just 0.25in²(1.6cm²)

• Output power range of 7W to 12W

• <1% line regulation

• 1µA shutdown current

• Over temperature protection

The MIC2299 implements a constant frequency 2MHz

PWM control scheme to make the smallest possible

design. The MIC2299’s 2MHz operation avoids signal

interference in the AM band.

The 2.5V to 10V input voltage range of MIC2299 allows

direct operation from 1- and 2-cell Li-Ion as well as 3- to 4-

cell NiCad/ NiMH/ Alkaline or lithium batteries. Maximum

battery life is assured with a low 1uA shutdown current.

• Externally programmable soft-start

• Under-voltage lockout (UVLO)

• 12-pin 3mm x 3mm leadless MLF^®package

• –40^°C to +125^°C junction temperature range

The MIC2299 is available in a low profile 12-pin 3mm x

3mm MLF^®package.

Applications

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

• Cell phones

• PDAs

• Digital cameras

• White LED flashlights

___________________________________________________________________________________________________________

Typical Application

Figure 1. High Power White LED Driver

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-101907-B

October 2007

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中文翻译

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与MIC2299_11相关器件

型号	品牌	获取价格	描述	数据表
MIC2299-15YML	MICREL	获取价格	3.5A Minimum, 2MHz High Brightness LED Driver
MIC2299-15YML-TR	MICROCHIP	获取价格	LED DISPLAY DRIVER, QCC12
MIC23030	MICREL	获取价格	8MHz PWM 400mA Buck Regulator with HyperLight Load
MIC23030	MICROCHIP	获取价格	The MIC23030 is a high efficiency 8MHz 400mA synchronous buck regulator with HyperLight
MIC23030-4YMT	MICREL	获取价格	8MHz PWM 400mA Buck Regulator with HyperLight Load
MIC23030-4YMT-TR	MICROCHIP	获取价格	1A SWITCHING REGULATOR, 8000kHz SWITCHING FREQ-MAX, PDSO6
MIC23030-AYMT	MICREL	获取价格	8MHz PWM 400mA Buck Regulator with HyperLight Load
MIC23030-CYMT	MICREL	获取价格	8MHz PWM 400mA Buck Regulator with HyperLight Load
MIC23030-CYMTTR	MICREL	获取价格	暂无描述
MIC23030-FYMT	MICREL	获取价格	8MHz PWM 400mA Buck Regulator with HyperLight Load

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