TLC59461 Datasheet, PDF (8/33 Pages) Texas Instruments – 16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction

TLC59461
SLVS896A – NOVEMBER 2008 – REVISED MARCH 2009............................................................................................................................................... www.ti.com
TERMINAL
NAME
PWP
BLANK
2
GND
1
GSCLK
25
IREF
27
MODE
6
NC
—
OUT0
7
OUT1
8
OUT2
9
OUT3
10
OUT4
11
OUT5
12
OUT6
13
OUT7
14
OUT8
15
OUT9
16
OUT10
17
OUT11
18
OUT12
19
OUT13
20
OUT14
21
OUT15
22
SCLK
4
SIN
5
SOUT
24
VCC
28
XERR
23
XHALF
26
XLAT
3
TERMINAL FUNCTIONS
I/O
DESCRIPTION
Blank (all constant-current outputs off). When BLANK is high, all constant-current outputs (OUT0 through
I
OUT15) are forced off, the Grayscale PWM timing controller initializes and the Grayscale counter resets
to '0'. When BLANK is low, all constant-current outputs are controlled by the Grayscale PWM timing
controller.
— Ground
I Reference clock for Grayscale PWM control.
I/O
This pin sets the constant-current value. OUT0 through OUT15 sink constant-current is set to desired
value by connecting an external resistor between IREF and GND.
I
Input mode pin. When MODE is high, the input mode is dot correction (DC). When MODE is low, the
input mode is grayscale (GS).
— No connection
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
O Constant-current output
I Serial data shift clock
I Serial data input
O Serial data output
I Power-supply voltage
O Error output. Open-drain output. XERR goes low when LOD or TEF is detected.
I
Extended serial interface. When XHALF is high, the device operates normally. When XHALF is low, the
extended serial interface is activated.
I
Edge triggered latch signal. At the rising edge of XLAT, the TLC59461 writes data from the input shift
register to either the Dot Correction register (MODE = high) or the Grayscale register (MODE = low).
8
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