TLC5904 Datasheet, PDF (3/27 Pages) Texas Instruments – LED DRIVER

functional block diagram
Shift Register and Data Latch
MCENA
BCENA
RSEL0
RSEL1
DIN<0:7>
XENABLE
DCLK
DOMODE
XOE
XLATCH
MODE
8
DCLK
Controller
OVM
Shift Register
Data Latch
Brightness Control
Shift Register
Data Latch
Gray Scale Control
Shift Register
Data Latch
GSCLK
BLANK
8 bits
Gray Scale
Counter
TSENA
WDTRG
WDCAP
TSD
WDT
DELEY
DELEY
16 x 8 bits
Comparator
TLC5904
LED DRIVER
SLLS391 – NOVEMBER 1999
8
DOUT<0:7>
GSOUT
BOUT
XDOWN1
XDOWN2
IREF
Current Reference
Circuit
16 bits
Constant Current Driver
16 bits
OVM Comp
LATCH
OUT0
OUT15
NOTE: All the input terminals are with Schmitt-triggered inverter except IREF and WDCAP.
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