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MIC3287-24YD6 PDF预览

MIC3287-24YD6

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接口集成电路光电二极管
页数 文件大小 规格书
9页 336K
描述
1.2MHz PWM White LED Driver with OVP in Thin SOT-23 and 2mm x 2mm MFL

MIC3287-24YD6 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:TSSOP
包装说明:LEAD FREE, MO-193, SOT-23, 6 PIN针数:6
Reach Compliance Code:compliant风险等级:5.05
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:3
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:3/5 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:5.5 V
最小供电电压:2.8 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
最小 fmax:1.4 MHzBase Number Matches:1

MIC3287-24YD6 数据手册

 浏览型号MIC3287-24YD6的Datasheet PDF文件第2页浏览型号MIC3287-24YD6的Datasheet PDF文件第3页浏览型号MIC3287-24YD6的Datasheet PDF文件第4页浏览型号MIC3287-24YD6的Datasheet PDF文件第5页浏览型号MIC3287-24YD6的Datasheet PDF文件第6页浏览型号MIC3287-24YD6的Datasheet PDF文件第7页 
MIC3287  
1.2MHz PWM White LED Driver with OVP in  
Thin SOT-23 and 2mm x 2mm MFL™  
General Description  
Features  
The MIC3287 is a 1.2MHz pulse width modulated (PWM)  
step-up switching regulator that is optimized for constant  
current white LED driving applications. With a maximum  
output voltage of 24V and a switch current of over 350mA,  
the MIC3287 drives a string of up to 4 white LEDs in series,  
ensuring uniform brightness and eliminating several ballast  
resistors.  
• 2.8V to 5.5V Input Voltage  
• 350mA Switch Current  
• 1.2 MHz PWM Operation  
• 250mV Feedback Voltage  
• 24V Output Over-Voltage Protection (OVP) Option  
• <1% Line and Load Regulation  
• <1µA Shutdown Current  
• Over-Temperature Protection  
TheMIC3287implementsaconstantfrequency1.2MHzPWM  
current-mode control scheme. The high frequency PWM op-  
eration saves board space by reducing external component  
sizes. The added benefit of the constant frequency PWM  
control scheme as opposed to variable frequency control  
schemes is much lower noise and input ripple injected back  
to the battery source. To optimize efficiency, the feedback  
voltage is set to only 250mV. The MIC3287 is also available  
with a maximum 24V over-voltage protection.  
• Under-Voltage Lock Out (UVLO)  
• Low Profile Thin SOT-23-5 Package Option  
• Low Profile Thin SOT-23-6 Package Option  
• 8-pin 2mm x 2mm MLF™ Package Option  
• –40°C to +125°C Junction Temperature Range  
Applications  
• White LED Driver for Backlighting:  
- Cell phones  
The MIC3287 is available in low profile Thin SOT-23 5-pin  
and Thin SOT-23 6-pin packages. The MIC3287 has a junc-  
tion temperature range of –40°C to +125°C.  
- PDAs  
- GPS systems  
All support documentation can be found on Micrel’s web site  
at: www.micrel.com.  
- Digital cameras  
- MP3 players  
- IP phones  
• LED Flashlights  
• Constant Current Power Supplies  
Typical Application  
10µH  
10µH  
MIC3287-24YD6  
MIC3287YD5  
5
4
1
3
1
5
3
6
VIN  
EN  
SW  
VIN  
SW  
1-Cell  
Li Ion  
1-Cell  
Li Ion  
1µF  
1µF  
4
OVP  
0.22µF  
0.22µF  
FB  
EN  
250mV  
FB  
250mV  
GND  
4
GND  
2
4-Series White LED Driver  
3-Series White LED Driver in Thin SOT-23-5  
with Output OVP in Thin SOT-23-6  
MLF and MicroLeadFrame are 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  
M9999-010306  
January 2006  
1

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