參數(shù)資料
型號: TLC5941RHB
廠商: Texas Instruments, Inc.
英文描述: 16-CHANNEL LED DRIVER WITH DOT CORRECTION AND GRAYSCALE PWM CONTROL
中文描述: 16-CHANNEL的LED驅(qū)動器,帶有點校正與灰度PWM控制
文件頁數(shù): 1/23頁
文件大?。?/td> 513K
代理商: TLC5941RHB
PWP
RHB
NT
www.ti.com
FEATURES
16 Channels
12-bit (4096 Steps) Grayscale PWM Control
Dot Correction
– 6 bit (64 Steps)
Drive Capability (Constant-Current Sink)
– 0 mA to 80 mA
LED Power Supply Voltage up to 17 V
V
CC
= 3.0 V to 5.5 V
Serial Data Interface, SPI Compatible
Controlled In-Rush Current
30-MHz Data Transfer Rate
CMOS Level I/O
Error Information
– LOD: LED Open Detection
– TEF: Thermal Error Flag
APPLICATIONS
Monocolor, Multicolor, Full-Color LED Dis-
plays
LED Signboards
Display Back-lighting
DESCRIPTION
The TLC5941 is a 16-channel, constant-current sink,
LED driver. Each channel has an individually adjust-
able 4096-step grayscale PWM brightness control
and a 64-step constant-current sink (dot correction).
The dot correction adjusts the brightness variations
between LED channels and other LED drivers. Both
grayscale control and dot correction are accessible
via a serial interface. A single external resistor sets
the maximum current value of all 16 channels.
Dx0
6Bit Dot Correction
12Bit Grayscale
PWM Control
DC Register
GS Register
ConsDriver
LED Open Detection
Temperature
E(TEF)
MCurrent
Dx1
6Bit Dot Correction
12Bit Grayscale
PWM Control
DC Register
GS Register
ConsDriver
LED Open Detection
Dx15
6Bit Dot Correction
12Bit Grayscale
PWM Control
DC Register
GS Register
ConsDriver
LED Open Detection
OUT0
OUT1
OUT15
SOUT
SIN
SCLK
IREF
XERR
XLAT
GSCLK
BLANK
GND
VCC
MODE
RInput
RInput
MODE
11
0
23
12
191
180
95
90
5
MODE
0
95
96
191
LED Open
D(LOD)
6
11
0
192
96
0
1
0
1
0
1
GS Counter
CNT
CNT
CNT
CNT
96
96
InStatus
TED,
DC DATA
192
0
191
VREF
=1.24V
TLC5941
SLVS589–JULY 2005
16-CHANNEL LED DRIVER WITH DOT CORRECTION AND GRAYSCALE PWM
CONTROL
The TLC5941 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 con-
dition.
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 2005, Texas Instruments Incorporated
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