TLC5925
www.ti.com .............................................................................................................................................................................................. SLVS765–OCTOBER 2008
LOW-POWER 16-CHANNEL CONSTANT-CURRENT LED SINK DRIVER
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FEATURES
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16 Constant-Current Output Channels
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30-MHz Clock Frequency
Schmitt-Trigger Inputs
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Constant Output Current Invariant to Load
Voltage Change
3.3-V to 5-V Supply Voltage
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Excellent Output Current Accuracy:
Thermal Shutdown for Overtemperature
Protection
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Between Channels: < ±4% (Max)
Between ICs: < ±6% (Max)
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ESD Performance: 1-kV HBM
Constant Output Current Range:
3 mA to 45 mA
APPLICATIONS
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Gaming Machine / Entertainment
General LED Applications
LED Display Systems
Signs LED Lighting
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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.
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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.