Part Name
         Description
TLC5946

 16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction ( 35 Page)


TI
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FUNCTIONAL BLOCK DIAGRAM
XHALF
XLAT
GSCLK
VCC
BLANK
IREF
GND
GND
16
96
2
16
96
OUT0
OUT1
OUT14
OUT15
Grayscale
Counter
Reference
Current
Control
LEDOpenDetection(LOD)
ConstantCurrentDriverwithDotCorrection
DotCorrectionDataLatch
(6Bits
16Channels)
´
12-BitPWMTimingControl
XLAT
Control
GSDataLatch
(OUT0toOUT7)
0
95
MSB
LSB
0
95
MSB
LSB
16
16
96
ShiftRegister
(96Bits)
96
96
GSDataLatch
(OUT8toOUT15)
96
FourGroupedOutputDelay
MODE
¼
MODE,XHALF
SCLK
2
SCLK
Control
LOD
DataLatch
SIN
SOUT
XERR
MODE,XHALF
2
MODE,XHALF
2
MODE,XHALF
SIN
Control
96
191
MSB
LSB
ShiftRegister
(96Bits)
SOUT
Control
3
BLANK,XLAT,SCLK
XERR
Control
Thermal
Detection
33rdGSCLK
TLC5946
SLVS824A – MARCH 2008 – REVISED APRIL 2008 ......................................................................................................................................................... www.ti.com
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