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MIC3289-24YD6 PDF预览

MIC3289-24YD6

更新时间: 2024-11-20 03:02:39
品牌 Logo 应用领域
麦瑞 - MICREL 显示驱动器驱动程序和接口肖特基二极管接口集成电路光电二极管
页数 文件大小 规格书
13页 368K
描述
1.2MHz PWM White LED Driver with Internal Schottky Diode and True 1-Wire Digital Control

MIC3289-24YD6 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOT-23
包装说明:VSSOP, TSOP6,.11,37针数:6
Reach Compliance Code:compliant风险等级:5.22
Is Samacsys:N数据输入模式:SERIAL
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:R-PDSO-G6
JESD-609代码:e4长度:2.9 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:6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:VSSOP封装等效代码:TSOP6,.11,37
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260电源:3.6 V
认证状态:Not Qualified座面最大高度:1 mm
子类别:Display Drivers最大供电电压:6.5 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端子形式:GULL WING
端子节距:0.95 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:1.6 mm
Base Number Matches:1

MIC3289-24YD6 数据手册

 浏览型号MIC3289-24YD6的Datasheet PDF文件第2页浏览型号MIC3289-24YD6的Datasheet PDF文件第3页浏览型号MIC3289-24YD6的Datasheet PDF文件第4页浏览型号MIC3289-24YD6的Datasheet PDF文件第5页浏览型号MIC3289-24YD6的Datasheet PDF文件第6页浏览型号MIC3289-24YD6的Datasheet PDF文件第7页 
MIC3289  
1.2MHz PWM White LED Driver with  
Internal Schottky Diode and True 1-Wire  
Digital Control  
PRELIMINARY INFORMATION  
General Description  
Features  
The MIC3289 is a PWM boost-switching regulator that is  
optimized for constant-current white LED driver  
applications. The MIC3289 features an internal Schottky  
diode, allowing an efficient DC/DC solution that requires  
only 4 external components.  
2.5V to 6.5V input voltage  
Output voltage up to 24V  
16V & 24V OVP options  
Single wire combines 16 level logarithmic brightness &  
shutdown control  
The MIC3289 allows for a single wire simple digital  
interface to control the dimming over 16 steps with a log  
scale to give better resolution at the lower currents to  
better match the sensitivity of the human eye  
Internal Schottky diode  
1.2 MHz PWM operation  
Over 500mA switch current  
Programmable 5% current control  
<1% line and load regulation  
<1µA shutdown current  
Over temperature protection  
UVLO  
Thin SOT23-6L package option  
2mm × 2mm leadless MLF®-8L package option  
–40oC to +125oC junction temperature range  
The feedback voltage of the MIC3289 is only 250mV,  
allowing high efficiency while retaining excellent accuracy  
for the white LED current.  
The MIC3289 implements a constant frequency 1.2MHz  
PWM control scheme. The high frequency PWM operation  
saves board space by reducing external component sizes.  
The 1.2MHz PWM scheme also reduces switching noise  
and ripple to the input power source.  
The 2.5V to 6.5V input voltage range of MIC3289 allows  
direct operation from single cell Li Ion as well as 3- to 4-  
cell NiCad/ NiMH/Alkaline batteries.  
Battery life is  
preserved with a low 1µA shutdown current.  
Applications  
The MIC3289 is available in a low profile Thin SOT23 6-  
lead package and a 2mm × 2mm MLF®-8L package and  
has a junction temperature range of –40°C to +125°C.  
Data sheets and support documentation can be found on  
Micrel’s web site at www.micrel.com.  
White/Blue LED driver for backlighting  
-
-
-
-
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Cell phones  
PDAs  
GPS systems  
Digital cameras  
Multimedia / MP3 players  
LED flashlights  
Constant current power supplies  
___________________________________________________________________________________________________________  
MicroLead Frame and MLF are registered trademarks of Amkor Technologies.  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-030407  
(408) 944-0800  
March 2007  

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