Datasheet > MIC4811YMM

MIC4811YMM

更新时间： 2024-02-16 12:43:33

品牌	Logo	应用领域
麦瑞 - MICREL		驱动器
页数	文件大小	规格书
12页	627K
描述
High Current 6 Channel Linear WLED Driver with DAM? and Ultra Fast PWM? Control

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MIC4811YMM 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	TSSOP, TSSOP10,.19,20	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
Factory Lead Time：	17 weeks	风险等级：	5.34
接口集成电路类型：	LED DISPLAY DRIVER	JESD-30 代码：	S-PDSO-G10
JESD-609代码：	e4	长度：	3 mm
湿度敏感等级：	2	复用显示功能：	NO
功能数量：	1	区段数：	6
端子数量：	10	最高工作温度：	125 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装等效代码：	TSSOP10,.19,20
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	座面最大高度：	1.1 mm
最大供电电压：	5.5 V	最小供电电压：	3 V
标称供电电压：	5 V	表面贴装：	YES
温度等级：	AUTOMOTIVE	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	3 mm	Base Number Matches：	1

MIC4811YMM 数据手册

MIC4811

High Current 6 Channel Linear WLED

Driver with DAM™ and Ultra Fast

PWM™ Control

General Description

Features

The MIC4811 is a high efficiency linear White LED

(WLED) driver designed to drive up to six high current

WLEDs for signage lighting. The MIC4811 provides the

highest possible efficiency as this architecture has no

switching losses present in traditional charge pumps or

inductive boost circuits. The MIC4811 provides six linear

drivers which maintain constant current for up to six

WLEDs. It features a typical dropout of 100mV at 50mA.

• High Efficiency (no Voltage Boost losses)

• Ultra Fast PWM™ control (200Hz to 500kHz)

• Input voltage range: 3.0V to 5.5V

• LED current range up to 50mA per channel

• Programmable LED current with external resistor

• Dropout of 100mV at 50mA

• Matching better than ±1% (typical)

The MIC4811 features Dynamic Average Matching™

(DAM™) which is specifically designed to provide optimum

matching across all WLEDs. The high accuracy (±1%

typical) current regulated WLED channels ensure uniform

display illumination under all conditions. The brightness is

controlled through an Ultra Fast PWM™ interface

operating down to less than 1% duty cycle.

• Current Accuracy better than ±1% (typical)

• Maintains proper regulation regardless of how many

channels are utilized

• 10-pin MSOP package

Applications

The MIC4811 is available in an 10-pin MSOP package

with a junction temperature range of -40°C to +125°C.

Datasheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

• Billboard displays

• Marquee displays

• Instrument displays

• LCD display modules

____________________________________________________________________________________________________________

Typical Application

High Current Lighting (Six WLEDs)

Ultra Fast PWM, DAM and Dynamic Average Matching are trademark of Micrel, 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

M9999-041411-B

April 2011

12 3 4 5 6 7...12

中文翻译

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与MIC4811YMM相关器件

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