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TLC5944 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. TLC5944
Description  16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction and Pre-Charge FET
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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TLC5944 Datasheet(HTML) 1 Page - Texas Instruments

 
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TLC5944
TLC5944
1
FEATURES
APPLICATIONS
SIN
SCLK
DCSEL
XLAT
BLANK
GSCLK
SOUT
XERR
VUP
GND
VCC
TLC5944
IC1
OUT0
OUT15
VCC
VLED
VLED
SIN
SCLK
DCSEL
XLAT
BLANK
GSCLK
R
IREF
IREF
SOUT
TLC5944
ICn
OUT0
OUT15
DATA
SCLK
DCSEL
XLAT
BLANK
GSCLK
FLAGS
READ
XERR
READ
VCC
R
IREF
IREF
Controller
XERR
VUP
GND
VCC
VLED
VLED
VCC
5
¼
¼
¼
LINEn
LINE0
TLC5944
www.ti.com ...................................................................................................................................................................................................... SBVS112 – JUNE 2008
16-Channel, 12-Bit PWM LED Driver with
6-Bit Dot Correction and Pre-Charge FET
23
• 16 Channels, Constant Current Sink Output
• Thermal Shutdown (TSD):
• 60-mA Capability (Constant Current Sink)
Automatic shutdown at over-temperature
conditions
• 12-Bit (4096 Steps) Grayscale Control with
PWM
Restart under normal temperature
• 6-Bit (64 Steps) Dot Correction with Sink
• Pre-Thermal Warning (PTW):
Current
High temperature operation alert
• Internal Pre-Charge FET to Prevent LED
• Readable Error Information:
Ghosting Phenomenon on Multiplexed LED
LED Open Detection (LOD)
Systems
Thermal Error Flag (TEF)
• LED Power-Supply Voltage up to 15 V
Pre-Thermal Warning (PTW)
• V
CC = 3.0 V to 5.5 V
• Noise Reduction:
• Constant Current Accuracy:
4-channel grouped delay to prevent inrush
Channel-to-Channel = ±1%
current
Device-to-Device = ±3%
• Operating Temperature: –40°C to +85°C
• CMOS Logic Level I/O
• 30-MHz Data Transfer Rate
• Monochrome, Multicolor, Full-Color LED
• 33-MHz Grayscale Control Clock
Displays Using Multiplexing System
• Continuous Base LED Open Detection (LOD):
• LED Signboards Using Multiplexing System
Detect LED opening and LED short to GND
during display with auto output off function
Typical Application Circuit (Multiple Daisy-Chained TLC5944s)
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.
2
PowerPAD is a trademark of Texas Instruments, Incorporated.
3
All other trademarks are the property of their respective owners.
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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