PWP RHB nt
www.ti.com
FEATURESAPPLICATIONS
描述
延迟
x0
12−bit grayscale
pwm 控制
直流 注册
gs 注册
直流 可擦可编程只读存储器
常数 电流
驾驶员
led指示灯 打开 检测
温度
错误 旗子
(tef)
最大值 outn
电流
延迟
x1
12−bit grayscale
pwm 控制
直流 注册
gs 注册
直流 可擦可编程只读存储器
常数 电流
驾驶员
led指示灯 打开 检测
延迟
x15
6−bit 圆点
12−bit grayscale
pwm 控制
直流 注册
gs 注册
直流 可擦可编程只读存储器
常数 电流
驾驶员
led指示灯 打开 检测
OUT0
OUT1
OUT15
SOUT
SINSCLK
IREF
XERR
XLAT
GSCLK
空白
DCPRG
DCPRG
DCPRG
VPRG
VPRG
VPRG
GNDVCC
VPRG
输入
轮班
注册
输入
轮班
注册
VPRG
110
2312
191180
9590
116
5
VPRG
0
0
95
96
191
led指示灯 打开
检测
(lod)
5
9590
6 11
DCPRG
0
192
96
0
1
01 0
1
01
gs 计数器
CNT
CNT
CNT
CNT
96
96
状态
信息:
lod,
泰德,
直流 数据
192
0
191
1
0
0
1
v
参考
=1.24 v
校正
6−bit 圆点
校正
6−bit 圆点
校正
01
空白
TLC5940
SLVS515A–DECEMBER2004–REVISEDAUGUST2005
16CHANNELLEDDRIVERWITHDOTCORRECTIONANDGRAYSCALEPWMCONTROL
•
monocolor,multicolor,fullcolorleddisplays
•
16Channels
•
LEDSignboards
•
12bit(4096steps)grayscalepwmcontrol
•
DisplayBacklighting
•
DotCorrection
•
概述,高-currentleddrive
–6bit(64steps)
–StorableinIntegratedEEPROM
•
drivecapability(constantcurrentsink)
thetlc5940isa16-channelconstant-currentsink
–0mato60ma(v
抄送
&指示灯;3.6v)
leddriver.eachchannelhasanindividuallyadjust-
–0mato120ma(v
抄送
>3.6v)
able4096-stepgrayscalepwmbrightnesscontrol
anda64-stepconstant-currentsink(dotcorrection).
•
LEDPowerSupplyVoltageupto17V
Thedotcorrectionadjuststhebrightnessvariations
•
v
抄送
=3vto5.5v
betweenledchannelsandotherleddrivers.这
•
serialdatainterface,spicomp.
dotcorrectiondataisstoredinanintegrated
可擦可编程只读存储器.bothgrayscalecontrolanddotcorrection
•
controlledin-rushcurrent
areaccessibleviaaserialinterface.asingleexternal
•
30-mhzdatatransferrate
resistorsetsthemaximumcurrentvalueofall16
•
cmosleveli/o
频道.
•
ErrorInformation
thetlc5940featurestwoerrorinformationcircuits.
–lod:ledopendetection
theledopendetection(lod)indicatesabrokenor
disconnectedledatanoutputterminal.thethermal
–tef:thermalerrorflag
errorflag(tef)indicatesanovertemperaturecon-
条件.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
powerpadisatrademarkoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©2004–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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