TLC5942_16 Datasheet, PDF (6/29 Pages) Texas Instruments – 16-Channel, 12-Bit PWM LED Driver with 7-Bit Dot Correction

TLC5942
Not Recommended for New Designs
SBVS096B – OCTOBER 2007 – REVISED OCTOBER 2007
FUNCTIONAL BLOCK DIAGRAM
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VCC
GSSIN
GSSCLK
XGSLAT
DCSIN
DCSCLK
XDCLAT
BLANK
IREF
GND
VCC
33rd GSSCLK Signal After BLANK Goes Low
LED Open Detection Data Latch
(16 LOD)
16
LSB
MSB
Grayscale Shift Register
(12 Bits x 16 Channels)
0
191
192
LSB
MSB
Grayscale Data Latch
(12 Bits x 16 Channels)
0
191
LSB
MSB
Dot Correction Shift Register
(7 Bits x 16 Channels)
0
111
LSB
112
192
MSB
16
Dot Correction Data Latch
(7 Bits x 16 Channels)
0
111
112
Grayscale
12
Counter
Reference
Current
Control
12-Bit PWM Timing Control
16
Output Switching Delay
(4-Channel Unit)
16
Constant Current Driver with Dot Correction
(16 Channels)
LED Open Detection
(LOD, 16 Channels)
Thermal
Detection
GND
OUT0 OUT1
¼
OUT14 OUT15
GSSOUT
DCSOUT
6
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