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MIC2289-24YML PDF预览

MIC2289-24YML

更新时间: 2024-01-17 00:26:28
品牌 Logo 应用领域
麦瑞 - MICREL 驱动器肖特基二极管
页数 文件大小 规格书
9页 90K
描述
2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP

MIC2289-24YML 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:6 weeks风险等级:1.51
Is Samacsys:N数据输入模式:SERIAL
接口集成电路类型:LED DISPLAY DRIVERJESD-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: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 MHz
Base Number Matches:1

MIC2289-24YML 数据手册

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MIC2289  
2mm × 2mm White LED Driver  
with 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  
internalSchottkydiodeandthreelevelsofoutputovervoltage  
protectionprovidingasmallsizeandefficientDC/DCsolution  
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  
<1% line and load regulation  
<1mA shutdown current  
Overtemperature protection  
UVLO  
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.  
The MIC2289 implements a constant frequency 1.2MHz  
PWM control scheme. The high frequency, PWM operation  
saves board space by reducing external component sizes.  
TheaddedbenefitoftheconstantfrequencyPWMschemein  
caparison to varible frequency is much lower noise and input  
ripple injected to the input power source.  
2mm × 2mm 8-pin MLFpackage  
°
°
• –40 C to +125 C junction temperature range  
Applications  
White LED driver for backlighting  
Cell phones  
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.  
PDAs  
GPS systems  
Digital cameras  
MP3 players  
IP phones  
LED flashlights  
Constant current power supplies  
The MIC2289 is available in a 2mm × 2mm 8-pin MLF™  
package and 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  
3-Series LED Efficiency  
10µH  
82  
80  
78  
76  
74  
MIC2289-15BML  
VIN  
SW  
1-Cell  
Li Ion  
1µF  
0.22µF/16V  
OUT  
FB  
95mV  
EN  
72  
GND  
VIN =3.6V  
6.3Ω  
70  
0
5
10  
I
15  
20  
25  
(mA)  
OUT  
3-Series White LED Driver  
MicroLeadFrame and MLF 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  
M9999-081104  
August, 2004  
1

MIC2289-24YML 替代型号

型号 品牌 替代类型 描述 数据表
MIC2289-24BML MICREL

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