Datasheet 搜索 > LED驱动器 > TI（德州仪器） > TLC5940PWPG4 数据手册 > TLC5940PWPG4 数据手册 1/38 页
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TLC5940PWPG4 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
LED驱动器
封装:
HTSSOP-28
描述:
16通道LED驱动器，具有点校正和灰度PWM控制 16 CHANNEL LED DRIVER WITH DOT CORRECTION AND GRAYSCALE PWM CONTROL
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3P4Hot
典型应用电路图在P23
原理图在P1P13
封装尺寸在P28P30P31
焊盘布局在P25
标记信息在P28
封装信息在P27P28P29P30P31
技术参数、封装参数在P5
应用领域在P1P29P38
电气规格在P7
导航目录
TLC5940PWPG4数据手册
Page:
of 38 Go
若手册格式错乱，请下载阅览PDF原文件
Delay
x0
12−BitGrayscale
PWMControl
DCRegister
GSRegister
DCEEPROM
ConstantCurrent
Driver
LEDOpenDetection
Temperature
ErrorFlag
(TEF)
Max.OUTn
Current
Delay
x1
12−BitGrayscale
PWMControl
DCRegister
GSRegister
DCEEPROM
ConstantCurrent
Driver
LEDOpenDetection
Delay
x15
6−BitDot
12−BitGrayscale
PWMControl
DCRegister
GSRegister
DCEEPROM
ConstantCurrent
Driver
LEDOpenDetection
OUT0
OUT1
OUT15
SOUT
SINSCLK
IREF
XERR
XLAT
GSCLK
BLANK
DCPRG
DCPRG
DCPRG
VPRG
VPRG
VPRG
GNDVCC
VPRG
Input
Shift
Register
Input
Shift
Register
VPRG
110
2312
191180
9590
116
5
VPRG
0
0
95
96
191
LEDOpen
Detection
(LOD)
5
9590
6 11
DCPRG
0
192
96
0
1
01 0
1
01
GSCounter
CNT
CNT
CNT
CNT
96
96
Status
Information:
LOD,
TED,
DCDATA
192
0
191
1
0
0
1
V
REF
=1.24V
Correction
6−BitDot
Correction
6−BitDot
Correction
01
Blank
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TLC5940
SLVS515D –DECEMBER 2004–REVISED NOVEMBER 2015
TLC5940 16-Channel LED Driver With DOT Correction and Grayscale PWM Control
1 Features 3 Description
The TLC5940 is a 16-channel, constant-current sink
1
• 16 Channels
LED driver. Each channel has an individually
• 12 bit (4096 Steps) Grayscale PWM Control
adjustable 4096-step grayscale PWM brightness
• Dot Correction
control and a 64-step, constant-current sink (dot
correction). The dot correction adjusts the brightness
– 6 bit (64 Steps)
variations between LED channels and other LED
– Storable in Integrated EEPROM
drivers. The dot correction data is stored in an
• Drive Capability (Constant-Current Sink)
integrated EEPROM. Both grayscale control and dot
correction are accessible through a serial interface. A
– 0 mA to 60 mA (V
CC
< 3.6 V)
single external resistor sets the maximum current
– 0 mA to 120 mA (V
CC
> 3.6 V)
value of all 16 channels.
• LED Power Supply Voltage up to 17 V
The TLC5940 features two error information circuits.
• V
CC
= 3 V to 5.5 V
The LED open detection (LOD) indicates a broken or
• Serial Data Interface
disconnected LED at an output terminal. The thermal
error flag (TEF) indicates an overtemperature
• Controlled In-Rush Current
condition.
• 30 MHz Data Transfer Rate
• CMOS Level I/O
Device Information
(1)
• Error Information
PART NUMBER PACKAGE BODY SIZE (NOM)
– LOD: LED Open Detection
PDIP (28) 35.69 mm × 6.73 mm
– TEF: Thermal Error Flag
TLC5940 HTSSOP (28) 9.70 mm × 4.40 mm
VQFN (32) 5.00 mm × 5.00 mm
2 Applications
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
• Monocolor, Multicolor, Full-Color LED Displays
• LED Signboards
• Display Backlighting
• General, High-Current LED Drive
Block Diagram
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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