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LM3503SQX-16/NOPB PDF预览

LM3503SQX-16/NOPB

更新时间： 2024-02-29 09:16:32
品牌 Logo 应用领域
德州仪器 - TI 驱动接口集成电路
页数 文件大小 规格书
27页 1422K
描述
Dual-Display Constant Current LED Driver with Analog Brightness Control 16-WQFN -40 to 85

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LM3503SQX-16/NOPB 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete包装说明：QCCN, LCC16,.16SQ,20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.56
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-PQCC-N16
JESD-609代码：e3湿度敏感等级：1
端子数量：16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：QCCN封装等效代码：LCC16,.16SQ,20
封装形状：SQUARE封装形式：CHIP CARRIER
峰值回流温度（摄氏度）：260电源：3/5 V
认证状态：Not Qualified子类别：Display Drivers
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：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIEDBase Number Matches：1

LM3503SQX-16/NOPB 数据手册

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LM3503  
www.ti.com  
SNVS329E –JULY 2005–REVISED MAY 2013  
LM3503 Dual-Display Constant Current LED Driver with Analog Brightness Control  
Check for Samples: LM3503  
1
FEATURES  
APPLICATIONS  
2
•
Drives up to 4, 6, 8 or 10 White LEDs for Dual  
Display Backlighting  
•
•
Dual Display Backlighting in Portable devices  
Cellular Phones and PDAs  
•
•
>80% Peak Efficiency  
DESCRIPTION  
The LM3503 is a white LED driver for lighting  
Output Voltage Protection Options: 16V, 25V,  
35V & 44V  
applications.  
For  
dual  
display  
backlighting  
complete  
•
•
•
•
•
•
Input Under-Voltage Protection  
applications, the LM3503 provides  
a
Internal Soft Start Eliminates Inrush Current  
1 MHz Constant Switching Frequency  
Analog Brightness Control  
solution. The LM3503 contains two internal white LED  
current bypass FET (Field Effect Transistor) switches.  
The white LED current can be adjusted with a DC  
voltage from a digital to analog converter or RC  
filtered PWM (pulse-width-modulated) signal at the  
Cntrl pin.  
Wide Input Voltage Range: 2.5V to 5.5V  
Low Profile Packages: <1 mm Height  
–
–
10 Bump DSBGA  
16 Pin WQFN  
Typical Application  
L
22 mH  
D
MAIN:  
2 to 5  
LEDs  
Sw  
V
V
V
IN  
OUT1  
C
IN  
V
SUPPLY  
OUT2  
4.7 mF  
Cntrl  
En1  
En2  
C
OUT  
LM3503-44  
1 mF  
Fb  
AGND  
PGND  
SUB:  
2 to 5  
LEDs  
Logic  
Voltage  
Signal  
Inputs  
R1  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2005–2013, Texas Instruments Incorporated  
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