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MIC2289-15YML-TR PDF预览

MIC2289-15YML-TR

更新时间： 2024-01-18 22:11:15
品牌 Logo 应用领域
美国微芯 - MICROCHIP 驱动接口集成电路
页数 文件大小 规格书
10页 269K
描述
LED DISPLAY DRIVER, DSO8

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中文翻译

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MIC2289-15YML-TR 技术参数

是否Rohs认证： 符合生命周期：Active
包装说明：HVSON,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：8 weeks风险等级：5.52
数据输入模式：SERIAL接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：S-XDSO-N8JESD-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：HVSON
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
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 MHzBase Number Matches：1

MIC2289-15YML-TR 数据手册

 浏览型号MIC2289-15YML-TR的Datasheet PDF文件第2页浏览型号MIC2289-15YML-TR的Datasheet PDF文件第3页浏览型号MIC2289-15YML-TR的Datasheet PDF文件第4页浏览型号MIC2289-15YML-TR的Datasheet PDF文件第5页浏览型号MIC2289-15YML-TR的Datasheet PDF文件第6页浏览型号MIC2289-15YML-TR的Datasheet PDF文件第7页 
MIC2289  
White LED Driver Internal Schottky  
Diode and OVP  
General Description  
Features  
The MIC2289 is a PWM (pulse width modulated), boost-  
switching regulator that is optimized for constant-current  
white LED driver applications. The MIC2289 features an  
internal Schottky diode and three levels of output  
overvoltage protection providing a small size and efficient  
DC/DC solution that requires only four external  
components.  
• 2.5V to 10V input voltage  
• Output voltage up to 34V  
• Internal Schottky diode  
• 15V, 24V, 34V output OVP options  
• 1.2 MHz PWM operation  
• Over 500mA switch current  
• 95mV feedback voltage  
To optimize efficiency, the feedback voltage is set to only  
95mV. This reduces power dissipation in the current set  
resistor and allows the lowest total output voltage, hence  
minimal current draw from the battery.  
• <1% line and load regulation  
• <1µA shutdown current  
• Overtemperature protection  
• UVLO  
The MIC2289 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  
in caparison to variable frequency is much lower noise and  
input ripple injected to the input power source.  
• 2mm × 2mm 8-pin MLF® package  
• –40°C to +125°C junction temperature range  
Applications  
The MIC2289 clamps the output voltage in case of open  
LED conditions, protecting itself and the output capacitor.  
The MIC2289 is available with three output OVP options of  
15V, 24V, and 34V. The different OVP options allows the  
use of the smallest possible output capacitor with the  
appropriate voltage rating for a given application.  
• White LED driver for backlighting:  
– Cell phones  
– PDAs  
– GPS systems  
– Digital cameras  
– MP3 players  
– IP phones  
The MIC2289 is available in low profile 6-pin Thin SOT-23  
and 8-pin 2mm × 2mm MLF® package options. The  
MIC2289 has a junction temperature range of –40°C to  
+125°C.  
• LED flashlights  
• Constant current power supplies  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
Typical Application  
10µH  
3-Series LED Efficiency  
82  
80  
78  
76  
74  
MIC2289-15BML  
VIN  
SW  
1-Cell  
Li Ion  
1µF  
0.22µF/16V  
OUT  
FB  
95mV  
EN  
GND  
72  
VIN =3.6V  
15 20 25  
70  
0
5
10  
IOUT (mA)  
3-Series 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  
M9999-071007  
July 2007  
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