TLC5929 Datasheet, PDF (21/36 Pages) Texas Instruments – 16-Channel, Constant-Current LED Driver with 7-Bit Global Brightness Control, Power-Save Mode

TLC5929
www.ti.com
SBVS159 – APRIL 2011
Function Control Data Writing
When the MSB is 1' in the 17-bit shift register, the control data latch can be updated with the lower 16 bits of
data in the shift register at the rising edge of the LAT signal after the data are stored to the shift register using
the SIN and SCLK signals. When the control data latch is updated, SID is not loaded into the shift register. The
function control data write timing is shown in Figure 24.
SIN
DATA DATA DATA DATA DATA DATA
0A 16B 15B 14B 13B 12B
High
DATA DATA DATA DATA
3B 2B 1B 0B
DATA DATA DATA DATA DATA DATA
16C 15C 14C 13C 12C 11C
Low
SCLK
LAT
1
23
4
5
14 15 16 17
1
23
4
5
6
Shift Register
LSB Data
DATA
0A
(Internal)
SID DATA DATA DATA DATA
0A 16B 15B 14B 13B
‘1’
Shift Register
LSB + 1 Data ^DATA
1A
SID
1A
SID DATA DATA DATA
0A 16B 15B 14B
(Internal)
‘1’
DATA DATA DATA
3B 2B 1B
DATA DATA DATA
4B 3B 2B
DATA
0B
DATA
1B
DATA DATA DATA DATA DATA
16C 15C 14C 13C 12C
‘0’
DATA DATA DATA DATA DATA
0B 16C 15C 14C 13C
‘0’
Shift Register
MSB - 1 Data
DATA
15A
SID
15A
SID DATA DATA DATA
14A 13A 12A 11A
(Internal)
Shift Register
MSB Data
(Internal)
Output On/Off
Data Latch
(Internal)
DATA
16A
‘0’
SID SID SID SID
15A 14A 13A 12A
DATA15A to DATA0A
Function Control
Data Latch
(Internal)
SID SID DATA
1A 0A 16B
‘1’
SID SID SID
2A 1A 0A
DATA
15B
DATA DATA DATA DATA DATA
14B 13B 12B 11B 10B
DATA
16B
‘1’
DATA DATA DATA DATA DATA
15B 14B 13B 12B 11B
DATA15A to DATA0A
Previous Function Control Data
DATA15B to DATA0B
SOUT
DATA
16A
Low
SID SID SID SID
15A 14A 13A 12A
SID SID SID
2A 1A 0A
DATA
16B
High
DATA DATA DATA DATA DATA
15B 14B 13B 12B 11B
Figure 24. Function Control Data Write Timing
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