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LM3530TMX-40 PDF预览

LM3530TMX-40

更新时间： 2024-01-08 03:29:02
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
47页 7459K
描述
LED DISPLAY DRIVER

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中文翻译

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LM3530TMX-40 技术参数

生命周期：Active零件包装代码：BGA
包装说明：,针数：12
Reach Compliance Code：unknown风险等级：5.57
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：R-PBGA-B12
端子数量：12封装主体材料：PLASTIC/EPOXY
封装形状：RECTANGULAR封装形式：GRID ARRAY
认证状态：Not Qualified表面贴装：YES
端子形式：BALL端子位置：BOTTOM
Base Number Matches：1

LM3530TMX-40 数据手册

 浏览型号LM3530TMX-40的Datasheet PDF文件第2页浏览型号LM3530TMX-40的Datasheet PDF文件第3页浏览型号LM3530TMX-40的Datasheet PDF文件第4页浏览型号LM3530TMX-40的Datasheet PDF文件第5页浏览型号LM3530TMX-40的Datasheet PDF文件第6页浏览型号LM3530TMX-40的Datasheet PDF文件第7页 
LM3530  
www.ti.com  
SNVS606K –JUNE 2009–REVISED MARCH 2013  
LM3530 High Efficiency White LED Driver with Programmable Ambient Light Sensing  
Capability and I2C-Compatible Interface  
Check for Samples: LM3530  
1
FEATURES  
DESCRIPTION  
The LM3530 current mode boost converter supplies  
the power and controls the current in up to 11 series  
white LED’s. The 839mA current limit and 2.7V to  
5.5V input voltage range make the device a versatile  
backlight power source ideal for operation in portable  
applications.  
2
•
Drives up to 11 LED’s in series  
1000:1 Dimming Ratio  
90% Efficient  
•
•
•
Programmable Dual Ambient Light Sensor  
Inputs with internal ALS Voltage Setting  
Resistors  
I2C Programmable Logarithmic or Linear  
Brightness Control  
The LED current is adjustable from 0 to 29.5mA via  
an I2C-compatible interface. The 127 different current  
steps and 8 different maximum LED current levels  
give over 1000 programmable LED current levels.  
Additionally, PWM brightness control is possible  
through an external logic level input.  
•
•
•
External PWM Input for Simple Brightness  
Adjustment  
True Shutdown Isolation for LED's and  
Ambient Light Sensors  
The device also features two Ambient Light Sensor  
inputs. These are designed to monitor analog output  
ambient light sensors and provide programmable  
adjustment of the LED current with changes in  
ambient light. Each ambient light sensor input has  
independently programmable internal voltage setting  
resistors which can be made high impedance to  
reduce power during shutdown. The LM3530's  
500kHz switching frequency allows for high converter  
•
•
•
•
•
•
Internal Soft-Start Limits Inrush Current  
Wide 2.7V to 5.5V Input Voltage Range  
40V and 25V Over-Voltage Protection Options  
500kHz Fixed Frequency Operation  
839mA Peak Current Limit  
Low-Profile 12-Bump DSBGA Package  
efficiency over  
a
wide output voltage range  
accommodating from 2 to 11 series LEDs. Finally, the  
support of Content Adjusted Backlighting maximizes  
battery life while maintaining display image quality.  
APPLICATIONS  
•
•
•
Smartphone LCD Backlighting  
Personal Navigation LCD Backlighting  
The LM3530 is available in a tiny 12-bump (1.6mm ×  
1.2mm × 0.425mm) DSBGA package and operates  
over the −40°C to +85°C temperature range.  
2 to 11 Series White LED Backlit Display  
Power Source  
Typical Application Circuit  
L
D1  
Up to 40V  
2.7V to 5.5V  
C
OUT  
SW  
V
IN  
LOGIC  
C
IN  
10 kW  
10 kW 10 kW  
10 kW  
LM3530  
SCL  
SDA  
OVP  
HWEN  
INT  
PWM  
ILED  
VIN  
VIN  
Ambient Light  
Sensor  
Ambient Light  
Sensor  
ALS1  
ALS2  
GND  
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 © 2009–2013, Texas Instruments Incorporated  
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