TLC5910 Datasheet, PDF (2/30 Pages) Texas Instruments – LED DRIVER

TLC5910
LED DRIVER
SLLS392 – NOVEMBER 1999
description
The TLC5910 is a constant current driver, incorporating a shift register, data latch, and constant current circuitry
with current value adjustable, PLL circuitry for gray scale control clock generation, and 1024 gray scale display
using pulse width control. The output current is a maximum of 80 mA with 16 bits, and the current value of
constant current output can be set by one external resistor. The device has two channel I/O ports. The
brightness deviation between LED modules (ICs) can be adjusted by external data input from a display data
port. The brightness control for the panel can be accomplished by the brightness adjustment circuitry.
Independently of these functions, the device incorporates the shift register and data latch to correct the deviation
between LEDs adjusting output current using data from a dot correction data port. Moreover, the device
incorporates watchdog timer (WDT) circuitry, which turns the constant current output off when a scan signal is
stopped at the dynamic scanning operation. It incorporates thermal shutdown (TSD) circuitry, which turns
constant current output off when the junction temperature exceeds the limit. It also incorporates LOD (LED open
detection) circuitry, which creates an error signal output when LED disconnection occurs and test mode
functions detect LED open or short conditions.
PZP PACKAGE
(TOP VIEW)
GNDLED 1
OUT0 2
OUT1 3
GNDLED 4
OUT2 5
OUT3 6
GNDLED 7
OUT4 8
OUT5 9
GNDLED 10
OUT6 11
OUT7 12
GNDLED 13
OUT8 14
OUT9 15
GNDLED 16
OUT10 17
OUT11 18
GNDLED 19
OUT12 20
OUT13 21
GNDLED 22
OUT14 23
OUT15 24
GNDLED 25
75 VCOIN
74 RBIAS
73 MAG0
72 MAG1
71 MAG2
70 PDOUT
69 GSPOL
68 GSCLK
67 BLANK
66 XENABLE
65 XOE
64 DCLK
63 XLATCH
62 DCCLK
61 XDCLAT
60 RSEL0
59 RSEL1
58 LEDCHK
57 OPEN
56 WDTRG
55 XDOWN1
54 XDOWN2
53 BOUT
52 XGSOUT
51 XPOUT
2
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