TLC5929 Datasheet, PDF (28/36 Pages) Texas Instruments – 16-Channel, Constant-Current LED Driver with 7-Bit Global Brightness Control, Power-Save Mode

TLC5929
SBVS159 – APRIL 2011
www.ti.com
SIN
DATA
1A
DATA
0A
SCLK
15 16 17
LAT
DATA DATA DATA DATA DATA
16B 15B 14B 13B 12B
Low
DATA DATA DATA
3B 2B 1B
DATA
0B
123 45
14 15 16 17
High
DATA DATA DATA DATA
16C 15C 14C 13C
123
Shift Register
LSB Data
(Internal)
Shift Register
LSB + 1 Data
(Internal)
DATA DATA
2A 1A
DATA DATA
3A 2A
DATA
0A
DATA
1A
SID DATA DATA DATA DATA
0A 16B 15B 14B 13B
‘0’
SID SID DATA DATA DATA
1A 0A 16B 15B 14B
‘0’
DATA DATA DATA DATA
SID
3B 2B 1B 0B
0B
DATA DATA
16C 15C
‘1’
DATA DATA DATA DATA
SID
4B 3B 2B 1B
1B
SID DATA
0B 16C
‘1’
Shift Register
MSB - 1 Data
(Internal)
Shift Register
MSB Data
(Internal)
Output On/Off
Data Latch
(Internal)
SIDLD in Function
Control Data
Latch (Internal)
SOUT
DATA DATA
0 16A
DATA DATA
1
0
DATA
15A
DATA
16A
‘0’
SID SID DATA DATA DATA
15A 14A 13A 12A 11A
SID SID DATA DATA
1A 0A 16B 15B
‘0’
SID data selected by SIDLD bit is loaded into the common
shift register at LAT rising edge, except when SIDLD is ‘00’.
SID SID SID SID
15A 14A 13A 12A
SID SID SID
2A 1A 0A
SID
15B
DATA
16B
‘0’
SID SID
14B 13B
SID SID
15B 14B
DATA15A to DATA0A
Previous On/Off Data
DATA15B to DATA0B
Don’t Care
DATA DATA
1
0
DATA
16A
Low
LOD data are selected when SIDLD is ‘01’. LSD data are selected when SIDLD is set to ‘10’.
OLD data are selected when the SID are set to ‘11’. No SID are loaded when SIDLD is ‘00’.
SID SID SID SID
15A 14A 13A 12A
SID SID SID
2A 1A 0A
16 bit Status Information Data (SID)
DATA
16B
Low
SID SID
15B 14B
BLANK
SID Holder
Data
(Internal)
16-Bit
LOD, LSD, or OLD
Detector Output
Data (Internal)
Detector data selected by SIDLD are held in SID holder when BLANK is high, or when IDM working time has elapsed.
The held data are loaded into the common shift register except when SIDLD is ‘00’.
Detector data
XXXXh
Detector data
XXXXh
LOD data go to SID holder when BLANK is low,
or when IDM working time has not elapsed.
Detector Detector data
XXXXh
0000h
Detector data
XXXXh
Detector data
0000h
The detector data are not stable immediately
after the BLANK signal goes low.
Figure 30. SID Read Timing
28
Submit Documentation Feedback
Product Folder Link(s): TLC5929
Copyright © 2011, Texas Instruments Incorporated