Datasheet > MIC2287-34YML

MIC2287-34YML

更新时间： 2024-01-16 23:08:47

品牌	Logo	应用领域
麦瑞 - MICREL		驱动器
页数	文件大小	规格书
10页	113K
描述
1.2MHz PWM White LED Driver with OVP in 2mm 】 2mm MLF⑩ and Thin SOT-23

阅读下载

中文翻译

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

MIC2287-34YML 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	HVSSON,	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
Factory Lead Time：	10 weeks	风险等级：	1.55
Is Samacsys：	N	接口集成电路类型：	LED DISPLAY DRIVER
JESD-30 代码：	S-XDSO-N8	JESD-609代码：	e4
长度：	2 mm	湿度敏感等级：	1
复用显示功能：	NO	功能数量：	1
区段数：	1	端子数量：	8
最高工作温度：	125 °C	最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED	封装代码：	HVSSON
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	0.95 mm	最大供电电压：	10 V
最小供电电压：	2.5 V	标称供电电压：	3.6 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：	NO LEAD
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：	2 mm
最小 fmax：	1.35 MHz	Base Number Matches：	1

MIC2287-34YML 数据手册

MIC2287

Micrel

MIC2287

1.2MHz PWM White LED Driver with OVP in

2mm × 2mm MLF™ and Thin SOT-23

General Description

Features

The MIC2287 is a 1.2MHz pulse width modulated (PWM),

boost-switching regulator that is optimized for constant-

current, white LED driver applications. With a maximum

outputvoltageof34Vandaswitchcurrentofover500mA, the

MIC2287easilydrivesastringofupto8whiteLEDsinseries,

ensuring uniform brightness and eliminating several ballast

resistors.

• 2.5V to 10V input voltage

• Output voltage up to 34V

• Over 500mA switch current

• 1.2 MHz PWM operation

• 95mV feedback voltage

• Output Overvoltage Protection (OVP)

• Options for 15V, 24V, and 34V OVP

• <1% line and load regulation

• <1µA shutdown current

• Over-temperature protection

• UVLO

• Low profile Thin SOT-23-5 package option

• 8-lead 2mm × 2mm MLF™ package option

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

The MIC2287 implements a constant frequency, 1.2MHz

PWM control scheme. The high frequency PWM operation

saves board space by reducing external component sizes.

The added benefit of the constant frequency PWM scheme

as opposed to variable frequency topologies is much lower

noise and input ripple injected back to the battery source.

To optimize efficiency, the feedback voltage is set to only

95mV. This reduces the power dissipation in the current set

resistor and allows the lowest total output voltage, hence

minimal current draw from the battery.

Applications

• White LED driver for backlighting:

- Cell phones

The MIC2287 is available with 3 levels of overvoltage protec-

tion, 15V, 24V, and 34V. This allows designers to choose the

smallest possible external components with the appropriate

voltage ratings for their applications.

- PDAs

- GPS systems

- Digital cameras

- MP3 players

- IP phones

• Photo flash LED driver

• LED flashlights

• Constant current power supplies

The MIC2287 is available in low profile Thin SOT-23 5-lead

and an 8-lead 2mm × 2mm MLF™ package options. The

MIC2287 has a junction temperature range of –40°C to

+125°C.

All support documentation can be found on Micrel’s web

site at www.micrel.com.

Typical Application

CMDSH-3

10µH

MIC2287BD5

MIC2287-34BML

VIN

1-Cell

Li Ion

1µF

1-Cell

Li Ion

1µF

OVP

0.22µF

95mV

GND

6.3Ω

3-Series White LED Driver in Thin SOT-23

6-Series White LED Driver

with Output OVP in 2mm × 2mm MLF™-8

MLF and MicroLeadFrame are trademarks of Amkor Technology, Inc.

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M0510-081104

August 2004

12 3 4 5 6 7...10

中文翻译

下载PDF

与MIC2287-34YML相关器件

型号	品牌	获取价格	描述	数据表
MIC2287-34YMLTR	MICROCHIP	获取价格	LED DISPLAY DRIVER, DSO8, 2 X 2 MM, LEAD FREE, MLF-8
MIC2287-34YML-TR	MICROCHIP	获取价格	LED DISPLAY DRIVER, DSO8
MIC2287BD5	MICREL	获取价格	1.2MHz PWM White LED Driver with OVP in 2mm 】
MIC2287BD5TR	MICROCHIP	获取价格	LED Driver, 1-Segment, PDSO5, TSOT-23, 5 PIN
MIC2287C	MICREL	获取价格	1.2MHz PWM White LED Driver with OVP in 2mm 】
MIC2287C_11	MICREL	获取价格	1.2MHz PWM White LED Driver with OVP in 2mm ×
MIC2287C-15BML	MICREL	获取价格	1.2MHz PWM White LED Driver with OVP in 2mm 】
MIC2287C-15BMLTR	MICROCHIP	获取价格	LED Driver, 6-Segment, 2 X 2 MM, MLF-8
MIC2287C-15YML	MICREL	获取价格	1.2MHz PWM White LED Driver with OVP in 2mm 】
MIC2287C-24BML	MICREL	获取价格	1.2MHz PWM White LED Driver with OVP in 2mm 】

产品中心

服务支持

精选活动

关于我们

帮助中心

MIC2287-34YML

MIC2287-34YML 技术参数

MIC2287-34YML 数据手册

与MIC2287-34YML相关器件

与MIC2287-34YML相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MIC2287-34YML

MIC2287-34YML 技术参数

MIC2287-34YML 数据手册

与MIC2287-34YML相关器件

与MIC2287-34YML相关文章

您还可以找

您在本页遇到什么问题？