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TPS61043DRBT

更新时间： 2024-11-27 12:47:11
品牌 Logo 应用领域
德州仪器 - TI 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
27页 958K
描述
CONSTANT CURRENT LED DRIVER

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中文翻译

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TPS61043DRBT 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：SON
包装说明：SON-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.62Is Samacsys：N
输入特性：STANDARD接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：S-PDSO-N8JESD-609代码：e4
长度：3 mm湿度敏感等级：2
复用显示功能：NO功能数量：1
区段数：4端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
输出特性：CONSTANT-CURRENT封装主体材料：PLASTIC/EPOXY
封装代码：HVSON封装等效代码：SOLCC8,.12,25
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260电源：3.6 V
认证状态：Not Qualified座面最大高度：1 mm
子类别：Display Drivers最大压摆率：0.065 mA
最大供电电压：6 V最小供电电压：1.8 V
标称供电电压：3.6 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：NO LEAD端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

TPS61043DRBT 数据手册

 浏览型号TPS61043DRBT的Datasheet PDF文件第2页浏览型号TPS61043DRBT的Datasheet PDF文件第3页浏览型号TPS61043DRBT的Datasheet PDF文件第4页浏览型号TPS61043DRBT的Datasheet PDF文件第5页浏览型号TPS61043DRBT的Datasheet PDF文件第6页浏览型号TPS61043DRBT的Datasheet PDF文件第7页 
TPS61043  
www.ti.com  
SLVS465A–DECEMBER 2003–REVISED DECEMBER 2003  
CONSTANT CURRENT LED DRIVER  
FEATURES  
DESCRIPTION  
•
Current Source with 18 V Overvoltage Protec-  
tion  
The TPS61043 is a high frequency boost converter  
with constant current output that drives white LEDs or  
similar. The LED current is set with the external  
sense resistor (RS) and is directly regulated by the  
feedback pin (FB) that regulates the voltage across  
the sense resistor RS to 252 mV (typ). To control LED  
brightness, the LED current can be pulsed by apply-  
ing a PWM (pulse width modulated) signal with a  
frequency range of 100 Hz to 50 kHz to the control  
pin (CTRL). To allow higher flexibility, the device can  
be configured where the brightness can be controlled  
by an analog signal as well, as described in the  
application information section. To avoid possible  
leakage currents through the LEDs during shutdown,  
the control pin (CTRL) disables the device and  
disconnects the LEDs from ground. For maximum  
safety during operation, the output has integrated  
overvoltage protection that prevents damage to the  
device by limiting the output voltage to typically 18 V  
in case of a high impedance output (e.g. faulty LED).  
The TPS61042 device provides a solution for appli-  
cations where higher LED currents or more than four  
LEDs in series need to be powered.  
•
•
•
•
•
Powers Up to 4 LEDs in Series  
Input Voltage Range . . 1.8 V to 6.0 V  
Internal 30 V Switch  
Up to 85% Efficiency  
Precise Brightness Control Using PWM Signal  
or Analog Signal  
•
•
•
Switching Frequency . . Up to 1 MHz  
Internal Power MOSFET Switch . . 400 mA  
Operates With Small Output Capacitors Down  
to 100 nF  
Disconnects LEDs During Shutdown  
No Load Quiescent Current . . 38 µA Typ  
Shutdown Current . . 0.1 µA Typ  
•
•
•
•
Available in a Small 3 mm × 3 mm QFN  
Package  
APPLICATIONS  
•
White LED Supply for Display  
Backlight/Sidelight in  
– PDA, Pocket PC, Smart Phones  
– Handheld Devices  
– Cellular Phones  
L1  
4.7 mH  
D1  
C
O
100 nF  
25 V  
VIN  
1.8 V to 6 V  
3
5
8
7
VIN  
SW  
CTRL OVP  
GND LED  
C
IN  
6
4
1
2
4.7 m F  
FB  
R
S
R
S
13  
W
Enable/PWM Brightness  
Control 100 Hz to 50 kHz  
A. Output capacitor values like 1 µF and larger, reduce the LED ripple current and improve line regulation.  
Figure 1. Typical Application  
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 © 2003, Texas Instruments Incorporated  
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TPS61043DRBT 替代型号

型号 品牌 替代类型 描述 数据表
TPS61043DRBR TI

完全替代

 CONSTANT CURRENT LED DRIVER
TPS61043DRBTG4 TI

类似代替

 CONSTANT CURRENT LED DRIVER
TPS61043DRBRG4 TI

类似代替

 CONSTANT CURRENT LED DRIVER

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