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TLC5947RHB PDF预览

TLC5947RHB

更新时间： 2024-11-19 04:28:07
品牌 Logo 应用领域
德州仪器 - TI 显示驱动器驱动程序和接口接口集成电路
页数 文件大小 规格书
25页 689K
描述
24-Channel, 12-Bit PWM LED Driver with

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中文翻译

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TLC5947RHB 技术参数

生命周期：Obsolete零件包装代码：QFN
包装说明：5 X 5 MM, PLASTIC, QFN-32针数：32
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.59
Is Samacsys：N其他特性：DUMMY VAL
数据输入模式：SERIAL接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：S-PQCC-N32长度：5 mm
复用显示功能：NO功能数量：1
区段数：24端子数量：32
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态：Not Qualified座面最大高度：1 mm
最大供电电压：3.5 V最小供电电压：3 V
标称供电电压：3.3 V表面贴装：YES
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
宽度：5 mm最小 fmax：30 MHz
Base Number Matches：1

TLC5947RHB 数据手册

 浏览型号TLC5947RHB的Datasheet PDF文件第2页浏览型号TLC5947RHB的Datasheet PDF文件第3页浏览型号TLC5947RHB的Datasheet PDF文件第4页浏览型号TLC5947RHB的Datasheet PDF文件第5页浏览型号TLC5947RHB的Datasheet PDF文件第6页浏览型号TLC5947RHB的Datasheet PDF文件第7页 
TLC5947  
www.ti.com....................................................................................................................................................................................................... SBVS114–JULY 2008  
24-Channel, 12-Bit PWM LED Driver with  
Internal Oscillator  
1
FEATURES  
•
Noise Reduction:  
23  
•
24 Channels, Constant Current Sink Output  
30-mA Capability (Constant Current Sink)  
12-Bit (4096 Steps) PWM Grayscale Control  
LED Power-Supply Voltage up to 30 V  
VCC = 3.0 V to 5.5 V  
–
4-channel grouped delay to prevent inrush  
current  
•
•
•
•
•
•
Operating Temperature: –40°C to +85°C  
APPLICATIONS  
•
•
•
•
Static LED Displays  
Message Boards  
Amusement Illumination  
TV Backlighting  
Constant Current Accuracy:  
–
–
Channel-to-Channel = ±2% (typ)  
Device-to-Device = ±2% (typ)  
•
•
•
CMOS Logic Level I/O  
DESCRIPTION  
30-MHz Data Transfer Rate (Standalone)  
15-MHz Data Transfer Rate (Cascaded Devices,  
SCLK Duty = 50%)  
The TLC5947 is a 24-channel, constant current sink  
LED driver. Each channel is individually adjustable  
with 4096 pulse-width modulated (PWM) steps. PWM  
control is repeated automatically with the  
programmed grayscale (GS) data. GS data are  
written via a serial interface port. The current value of  
all 24 channels is set by a single external resistor.  
•
Shift Out Data Changes With Falling Edge to  
Avoid Data Shift Errors  
•
•
•
Auto Display Repeat  
4-MHz Internal Oscillator  
Thermal Shutdown (TSD):  
The TLC5947 has a thermal shutdown (TSD) function  
that turns off all output drivers during an  
over-temperature condition. All of the output drivers  
automatically restart when the temperature returns to  
normal conditions.  
–
Automatic shutdown at over temperature  
conditions  
–
Restart under normal temperature  
VLED  
VLED  
VLED  
VLED  
¼
¼
¼
¼
¼
¼
¼
¼
¼
¼
¼
OUT0  
OUT23  
SOUT  
OUT0  
SIN  
OUT23  
SOUT  
DATA  
SIN  
SCLK  
SCLK  
SCLK  
XLAT  
BLANK  
VCC  
VCC  
Controller  
XLAT  
TLC5947  
TLC5947  
ICn  
XLAT  
BLANK  
IC1  
VCC  
GND  
VCC  
GND  
BLANK  
IREF  
IREF  
RIREF  
RIREF  
3
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
3
PowerPAD is a trademark of Texas Instruments, Inc.  
All other trademarks are the property of their respective owners.  
UNLESS OTHERWISE NOTED this document contains  
PRODUCTION DATA information current as of publication date.  
Products conform to specifications per the terms of Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008, Texas Instruments Incorporated  
1234567...25

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