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TPS61042DRBR PDF预览

TPS61042DRBR

更新时间： 2024-11-24 12:02:35
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 713K
描述
CONSTANT CURRENT LED DRIVER

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中文翻译

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TPS61042DRBR 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：0.58Is 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：6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：65 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 mm最小 fmax：1 MHz
Base Number Matches：1

TPS61042DRBR 数据手册

 浏览型号TPS61042DRBR的Datasheet PDF文件第2页浏览型号TPS61042DRBR的Datasheet PDF文件第3页浏览型号TPS61042DRBR的Datasheet PDF文件第4页浏览型号TPS61042DRBR的Datasheet PDF文件第5页浏览型号TPS61042DRBR的Datasheet PDF文件第6页浏览型号TPS61042DRBR的Datasheet PDF文件第7页 
TPS61042  
www.ti.com  
SLVS441C–DECEMBER 2002–REVISED MARCH 2007  
CONSTANT CURRENT LED DRIVER  
FEATURES  
DESCRIPTION  
•
•
•
•
•
Current Source With Overvoltage Protection  
Input Voltage Range . . 1.8 V to 6 V  
Internal 30 V Switch  
The TPS61042 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  
applying 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 in case of a high impedance output (e.g.  
faulty LED).  
Up to 85% Efficiency  
Precise Brightness Control Using PWM Signal  
or Analog Signal  
•
•
•
Switching Frequency . . Up to 1 MHz  
Internal Power MOSFET Switch . . 500 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 Backlight/Sidelight  
Displays  
–
–
–
PDA, Pocket PC, Smart Phones  
Handheld Devices  
Cellular Phones  
L1  
4.7 mH  
D1  
†
C
O
100 nF  
3
5
8
7
V
in  
VIN  
SW  
1.8 V to 6 V  
CTRL OVP  
GND LED  
6
4
1
2
C
in  
R
S
FB  
4.7 mF  
R
13 W  
s
Enable/PWM Brightness Control  
100 Hz to 50 kHz  
† Larger 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 © 2002–2007, Texas Instruments Incorporated  
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TPS61042DRBR 替代型号

型号 品牌 替代类型 描述 数据表
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