TLC5911 Datasheet, PDF (4/30 Pages) Texas Instruments – LED DRIVER

TLC5911
LED DRIVER
SLLS402 – DECEMBER 1999
functional block diagram for shift register and data latch
XOE
DCLK
DPOL
XENABLE
DCCLK
DCLK
Controller
DATA
10 16 DATA 10 16
S/R
a
10
†
A
LATCH
b
B
a
c
10
b ^{A 10} _L
c
H
DATA
Comparator
10
DOUT(9–0)
10
DIN(9–0)
DCDIN(6–0)
7
a
A
b
10 B.C.
B
S/R
c
10 B.C.
LATCH
HI–Z
10
10
Clock Counter
Current Controller
a
A
XLATCH
b
B
XDCLAT
c
7
‡
DCDOUT(6–0)
RSEL(1–0)
7
D.C. ^{7 16}
S/R
D.C.
7 16
H
LATCH
L
7 16
BCENA
7 16
Default
DCENA
† _{Connecting to 16th 10-bit Bus}
‡ _{Connecting to 16th 7-bit Bus}
Legend:
B.C. (Brightness Control): Adjustment for brightness deviation between LED modules, and between panels.
D.C. (Dot Control): Adjustment for brightness deviation between dots.
RSEL
RSEL1
RSEL0
L
L
L
H
H
L
H
H
CONNECTION
A – a, B – c
A – b, B – c
A–c
INHIBIT
DATA
Comparator
4
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