TLC5946_16 Datasheet, PDF (6/41 Pages) Texas Instruments – 16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction

TLC5946
SLVS824B – MARCH 2008 – REVISED JUNE 2008 .......................................................................................................................................................... www.ti.com
FUNCTIONAL BLOCK DIAGRAM
MODE
XHALF
SIN
SCLK
XLAT
GSCLK
BLANK
IREF
VCC
GND
MODE, XHALF
2
SCLK
Control
MODE, XHALF
2
XLAT
Control
Grayscale
Counter
Reference
Current
Control
GND
BLANK, XLAT, SCLK
3
Thermal
Detection
XERR
Control
LSB
MSB
Shift Register
(96 Bits)
0
95
96
MODE, XHALF
2
SIN
Control
LSB
MSB
Shift Register
(96 Bits)
96
191
16
LOD
Data Latch
96
33rd GSCLK
MODE, XHALF
2
SOUT
Control
XERR
SOUT
GS Data Latch
(OUT0 to OUT7)
96
GS Data Latch
(OUT8 to OUT15)
96
12-Bit PWM Timing Control
16
Four Grouped Output Delay
96
16
16 ^LSB
0
Dot Correction Data Latch
(6 Bits 16 Channels)
´
96
MSB
95
Constant Current Driver with Dot Correction
LED Open Detection (LOD)
OUT0 OUT1
¼
OUT14 OUT15
6
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