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TPS61181ARTE

更新时间： 2024-11-22 08:38:51
品牌 Logo 应用领域
德州仪器 - TI 驱动器显示器电脑
页数 文件大小 规格书
28页 705K
描述
WLED DRIVER FOR NOTEBOOK DISPLAY

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中文翻译

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TPS61181ARTE 技术参数

生命周期：Obsolete零件包装代码：QFN
包装说明：HVQCCN,针数：16
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.65
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-PQCC-N16
长度：3 mm复用显示功能：NO
功能数量：1区段数：60
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：HVQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE座面最大高度：0.8 mm
最大供电电压：24 V最小供电电压：4.5 V
标称供电电压：10.8 V表面贴装：YES
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
宽度：3 mmBase Number Matches：1

TPS61181ARTE 数据手册

 浏览型号TPS61181ARTE的Datasheet PDF文件第2页浏览型号TPS61181ARTE的Datasheet PDF文件第3页浏览型号TPS61181ARTE的Datasheet PDF文件第4页浏览型号TPS61181ARTE的Datasheet PDF文件第5页浏览型号TPS61181ARTE的Datasheet PDF文件第6页浏览型号TPS61181ARTE的Datasheet PDF文件第7页 
TPS61181A  
www.ti.com  
SLVSAN6A –FEBRUARY 2011–REVISED MARCH 2011  
WLED DRIVER FOR NOTEBOOK DISPLAY  
Check for Samples: TPS61181A  
1
FEATURES  
DESCRIPTION  
The TPS61181A IC provides highly integrated  
solutions for media size LCD backlighting. These  
devices have a built-in high efficiency boost regulator  
with integrated 1.5A/40V power MOSFET. The six  
current sink regulators provide high precision current  
regulation and matching. In total, the device can  
support up to 60 WLEDs. In addition, the boost output  
automatically adjusts its voltage to the WLED forward  
voltage to improve efficiency.  
•
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•
•
•
•
•
•
•
•
•
•
•
•
•
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4.5 V to 24 V Input Voltage  
38V Maximum Output Voltage  
Integrated 1.5 A/40 V MOSFET  
1.0-MHz Switching Frequency  
Adaptive Boost Output to WLED Voltages  
Small External Components  
Integrated Loop Compensation  
Six Current Sinks of 30 mA  
The devices support pulse width modulation (PWM)  
brightness dimming. During dimming, the WLED  
current is turned on/off at the duty cycle and  
frequency determined by the PWM signal input to the  
DCRTL pin. One potential issue of PWM dimming is  
audible noise from the output ceramic capacitors. The  
TPS61181A is designed to minimize this output AC  
Up to 10 WLED in Series  
1% Typical Current Matching and Accuracy  
Up to 1000:1 PWM Brightness Dimming  
Minimized Output Ripple Under PWM Dimming  
Driver for Input/Output Isolation PFET  
True Shutdown  
ripple across  
a wide dimming duty cycle and  
frequency range and therefore, reduce this audible  
noise.  
Over Voltage Protection  
WLED Open/Short Protection  
Built-in Soft Start  
The TPS61181A provides a driver output for an  
external PFET connected between the input and  
inductor. During short circuit or over-current  
conditions, the IC turns off the external PFET and  
disconnects the battery from the WLEDs. The PFET  
is also turned off during IC shutdown (thereby giving  
"true" shutdown) to prevent any leakage current from  
the battery. The device also integrates over-voltage  
protection, soft-start and thermal shutdown.  
16L 3 mm×3 mm QFN  
APPLICATIONS  
•
•
•
Notebook LCD Display Backlight  
UMPC LCD Display Backlight  
Backlight for Media Form Factor LCD display  
The TPS61181A has a built-in linear regulator for the  
IC supply. The devices are in a 3×3 mm QFN  
package.  
TPS61181A TYPICAL APPLICATION  
L1  
C2  
D1  
10 µH  
4.7 µF 10 WLED in series, 120 mA total  
4.5 V to 24 V  
C1  
R2  
51 W  
4.7 µF  
SW  
VO  
Fault  
VBAT  
C3  
1 µF  
TPS61181A  
IFB1  
IFB2  
IFB3  
IFB4  
IFB5  
IFB6  
Cin  
C4  
0.1 µF  
EN  
EN  
DCTRL  
ISET  
PGND  
GND  
PWM Dimming  
R1  
62 KW  
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.  
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 © 2011, Texas Instruments Incorporated  
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