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参数资料
型号： TLC5945RHBT
厂商： Texas Instruments
文件页数： 1/30页
文件大小： 0K
描述： IC LED DRIVER LINEAR 32-QFN
标准包装： 250
恒定电流： 是
拓扑： PWM
输出数： 16
内部驱动器： 是
类型 - 主要： 背光
类型 - 次要： 颜色
频率： 30MHz
电源电压： 3 V ~ 5.5 V
输出电压： 17V
安装类型： 表面贴装
封装/外壳： 32-VFQFN 裸露焊盘
供应商设备封装： 32-QFN 裸露焊盘（5x5）
包装： 带卷 (TR)
工作温度： -40°C ~ 85°C

TLC5945
www.ti.com
PWP
RHB
SLVS755 – MARCH 2007
16-CHANNEL LED DRIVER WITH DOT CORRECTION AND GRAYSCALE PWM CONTROL
FEATURES
APPLICATIONS
?
?
?
16 Channels
12-bit (4096 Steps) Grayscale PWM Control
Dot Correction
– 6 bit (64 Steps)
?
?
?
Monocolor, Multicolor, Full-Color LED
Displays
LED Signboards
Display Back-lighting
?
?
?
?
?
?
?
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
30-MHz Data Transfer Rate
CMOS Level I/O
Error Information
– LOD: LED Open Detection
– TEF: Thermal Error Flag
DESCRIPTION
The TLC5945 is a 16-channel, constant-current sink,
LED driver. Each channel has an individually
adjustable 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.
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.
VCC
GND
SCLK
SIN
XLAT
MODE
CNT
IREF
Max. OUTn
Current
V REF
=1.24V
1 0
MODE
1 0
11
GS Register
0
12?Bit Grayscale
PWM Control
Constant-Current
Driver
OUT0
GSCLK
BLANK
GS Counter
CNT
0
5
DC Register
0
6?Bit Dot Correction
LED Open Detection
Input
Shift
0
96
Register
CNT
Status
Information:
LOD,
192
192
23
GS Register
12
12?Bit Grayscale
PWM Control
Constant-Current
Driver
OUT1
TED,
DC DATA
191
96
95
96
DC Register
6?Bit Dot Correction
1 0
11
6
MODE
LED Open Detection
96
Temperature
Error Flag
(TEF)
LED Open
Detection
(LOD)
Input
Shift
Register
191
GS Register
180
CNT
12?Bit Grayscale
PWM Control
Constant-Current
Driver
OUT15
XERR
95
DC Register
90
6?Bit Dot Correction
191
LED Open Detection
SOUT
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 ? 2007, Texas Instruments Incorporated
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TLC5945RHBTG4 功能描述:LED显示驱动器 16-Ch LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
TLC5946 制造商:TI 制造商全称:Texas Instruments 功能描述:16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction
TLC5946_0806 制造商:TI 制造商全称:Texas Instruments 功能描述:16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction
TLC59461 制造商:TI 制造商全称:Texas Instruments 功能描述:16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction
TLC59461PWP 功能描述:LED显示驱动器 16Ch 12B PWM LED Drvr 6B Dot Correc RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
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