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TLC5925_09

更新时间： 2024-11-27 11:56:07
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
23页 704K
描述
LOW-POWER 16-CHANNEL CONSTANT-CURRENT LED SINK DRIVER

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TLC5925_09 数据手册

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TLC5925  
www.ti.com .............................................................................................................................................................................................. SLVS765–OCTOBER 2008  
LOW-POWER 16-CHANNEL CONSTANT-CURRENT LED SINK DRIVER  
1
FEATURES  
•
16 Constant-Current Output Channels  
•
•
•
•
30-MHz Clock Frequency  
Schmitt-Trigger Inputs  
•
Constant Output Current Invariant to Load  
Voltage Change  
3.3-V to 5-V Supply Voltage  
•
•
Excellent Output Current Accuracy:  
Thermal Shutdown for Overtemperature  
Protection  
–
–
Between Channels: < ±4% (Max)  
Between ICs: < ±6% (Max)  
•
ESD Performance: 1-kV HBM  
Constant Output Current Range:  
3 mA to 45 mA  
APPLICATIONS  
•
•
•
•
•
Gaming Machine / Entertainment  
General LED Applications  
LED Display Systems  
Signs LED Lighting  
•
•
Output Current Adjusted By External Resistor  
Fast Response of Output Current, OE (Min):  
100 ns  
White Goods  
DESCRIPTION/ORDERING INFORMATION  
The TLC5925 is designed for LED displays and LED lighting applications. The TLC5925 contains a 16-bit shift  
register and data latches, which convert serial input data into parallel output format. At the TLC5925 output  
stage, 16 regulated-current ports provide uniform and constant current for driving LEDs within a wide range of VF  
variations. Used in system design for LED display applications (e.g., LED panels), the TLC5925 provides great  
flexibility and device performance. Users can adjust the output current from 3 mA to 45 mA through an external  
resistor, Rext, which gives flexibility in controlling the light intensity of LEDs. TLC5925 is designed for up to 17 V  
at the output port. The high clock frequency, 30 MHz, also satisfies the system requirements of high-volume data  
transmission.  
The serial data is transferred into TLC5925 via SDI, shifted in the shift register, and transferred out via SDO. LE  
can latch the serial data in the shift register to the output latch. OE enables the output drivers to sink current.  
ORDERING INFORMATION(1)  
TA  
PACKAGE(2)  
ORDERABLE PART NUMBER  
TLC5925IPWR  
TOP-SIDE MARKING  
Y5925  
PW  
Reel of 2000  
–40°C to 85°C  
W-SOIC – DW  
SSOP – DBQ  
Reel of 2000  
Reel of 2000  
TLC5925IDWR  
PREVIEW  
TLC5925I  
TLC5925IDBQR  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
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.  
Copyright © 2008, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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