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TLC5945 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. TLC5945
Description  16-CHANNEL LED DRIVER WITH DOT CORRECTION AND GRAYSCALE PWM CONTROL
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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TLC5945 Datasheet(HTML) 1 Page - Texas Instruments

 
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PWP
RHB
www.ti.com
FEATURES
APPLICATIONS
DESCRIPTION
6−BitDotCorrection
12−BitGrayscale
PWMControl
DCRegister
GSRegister
Constant-Current
Driver
LEDOpenDetection
Temperature
ErrorFlag
(TEF)
Max.OUTn
Current
6−BitDotCorrection
12−BitGrayscale
PWMControl
DCRegister
GSRegister
Constant-Current
Driver
LEDOpenDetection
6−BitDotCorrection
12−BitGrayscale
PWMControl
DCRegister
GSRegister
Constant-Current
Driver
LEDOpenDetection
OUT0
OUT1
OUT15
SOUT
SIN
SCLK
IREF
XLAT
GSCLK
BLANK
GND
VCC
MODE
Input
Shift
Register
Input
Shift
Register
MODE
11
0
23
12
191
180
95
90
5
MODE
0
95
96
191
LEDOpen
Detection
(LOD)
6
11
0
192
96
0
1
0
1
0
1
GSCounter
CNT
CNT
CNT
CNT
96
96
Status
Information:
LOD,
TED,
DCDATA
192
0
191
VREF
=1.24V
XERR
TLC5945
SLVS755 – MARCH 2007
16-CHANNEL LED DRIVER WITH DOT CORRECTION AND GRAYSCALE PWM CONTROL
• Monocolor, Multicolor, Full-Color LED
• 16 Channels
Displays
• 12-bit (4096 Steps) Grayscale PWM Control
• LED Signboards
• Dot Correction
• Display Back-lighting
6 bit (64 Steps)
• Drive Capability (Constant-Current Sink)
0 mA to 80 mA
The TLC5945 is a 16-channel, constant-current sink,
• LED Power Supply Voltage up to 17 V
LED
driver.
Each
channel
has
an
individually
adjustable 4096-step grayscale PWM brightness
• V
CC = 3.0 V to 5.5 V
control and a 64-step constant-current sink (dot
• Serial Data Interface
correction). The dot correction adjusts the brightness
• 30-MHz Data Transfer Rate
variations between LED channels and other LED
drivers. Both grayscale control and dot correction are
• CMOS Level I/O
accessible via a serial interface. A single external
• Error Information
resistor sets the maximum current value of all 16
LOD: LED Open Detection
channels.
TEF: Thermal Error Flag
The TLC5945 features two error information circuits.
The LED open detection (LOD) indicates a broken or
disconnected LED at an output terminal. The thermal
error
flag
(TEF)
indicates
an
overtemperature
condition.
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.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007, 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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