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LM3520SDX PDF预览

LM3520SDX

更新时间: 2024-02-05 17:02:23
品牌 Logo 应用领域
美国国家半导体 - NSC 驱动器显示器
页数 文件大小 规格书
14页 961K
描述
Integrated White LED Driver with Organic LED Display Power Supply

LM3520SDX 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:HVSON, SOLCC14,.12,20针数:14
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.74
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:R-PDSO-N14
JESD-609代码:e3长度:4 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:14最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:HVSON封装等效代码:SOLCC14,.12,20
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
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:0.8 mm
子类别:Display Drivers最大供电电压:5.5 V
最小供电电压:2.7 V标称供电电压:3.6 V
表面贴装:YES温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)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:3 mm
Base Number Matches:1

LM3520SDX 数据手册

 浏览型号LM3520SDX的Datasheet PDF文件第2页浏览型号LM3520SDX的Datasheet PDF文件第3页浏览型号LM3520SDX的Datasheet PDF文件第4页浏览型号LM3520SDX的Datasheet PDF文件第5页浏览型号LM3520SDX的Datasheet PDF文件第6页浏览型号LM3520SDX的Datasheet PDF文件第7页 
September 2005  
LM3520  
Integrated White LED Driver with Organic LED Display  
Power Supply  
General Description  
Features  
n Integrated OLED and white-LED driver  
n 80% efficiency  
The LM3520 is a dual step-up DC/DC converter, designed to  
drive up to 5 white LEDs with a constant current and to  
power an organic LED display with a constant voltage.  
n Drives up to 5 LEDs at 20mA/3.6V and 4 LEDs at  
30mA/3.6V for main-display  
A single external resistor is used to set the maximum LED  
current. The LED current can be adjusted by applying a  
PWM signal to the EN pin. For higher efficiency the LM3520  
operates with pulse frequency modulation (PFM) control  
scheme when the sub-display is enabled. When Main dis-  
play is enabled, the device is operating in PWM mode.  
@
n Up to 20V 50mA/3.6V for sub-display  
n True shutdown isolation  
n Small External Components  
n 1 MHz Switching Frequency  
n 23V OverVoltage Protection  
n Wide Input Voltage Range: 2.7V to 5.5V  
n Cycle-By-Cycle Current Limit  
n PWM Dimming Control  
Overvoltage protection circuitry and a 1MHz switching fre-  
quency allow for the use of small, low cost external compo-  
nents.  
Additional features include a low-side NFET switch that can  
turn off the LED string with no DC current path to ground.  
n Low Profile 14-Pin LLP(3mm x 4mm x 0.8mm)  
The LM3520 is available in a small 14-pin thermally-  
enchanced LLP package.  
Applications  
n Flip-phones/Clam-shell Cellular Phones  
n Handheld Devices  
n High-fashion cellular phones  
n White LED Backlighting  
n Digital Cameras  
Typical Applications  
20128803  
Main Display with OLED Sub Display  
© 2005 National Semiconductor Corporation  
DS201288  
www.national.com  

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