TLC5925_15 Datasheet, PDF (3/28 Pages) Texas Instruments – Low-Power 16-Channel Constant-Current LED Sink Driver

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5 Pin Configuration and Functions
TLC5925
SLVS765B – OCTOBER 2008 – REVISED SEPTEMBER 2015
DBQ, DW, or PWP Package
24-Pin SSOP, SOIC, or TSSOP
Top View
GND 1
SDI 2
CLK 3
LE 4
OUT0 5
OUT1 6
OUT2 7
OUT3 8
OUT4 9
OUT5 10
OUT6 11
OUT7 12
24 VDD
23 R-EXT
22 SDO
21 OE
20 OUT15
19 OUT14
18 OUT13
17 OUT12
16 OUT11
15 OUT10
14 OUT9
13 OUT8
PIN
NAME
NO.
CLK
3
GND
1
LE
4
OE
21
OUT0
5
OUT1
6
OUT2
7
OUT3
8
OUT4
9
OUT5
10
OUT6
11
OUT7
12
OUT8
13
OUT9
14
OUT10
15
OUT11
16
OUT12
17
OUT13
18
OUT14
19
OUT15
20
R-EXT
23
SDI
2
SDO
22
VDD
24
Pin Functions
I/O
DESCRIPTION
I Clock input for data shift on rising edge
— Ground for control logic and current sink
Data strobe input
I
Serial data is transferred to the respective latch when LE is high.
The data is latched when LE goes low.
LE has an internal pull-down resistor.
Output enable
I
When OE is active (low), the output drivers are enabled.
When OE is high, all output drivers are turned OFF (blanked).
OE has an internal pullup resistor.
O Constant-current outputs
I Input used to connect an external resistor (R_ext) for setting output currents
I Serial-data input to the Shift register
O Serial-data output to the following SDI of next driver IC or to the microcontroller
I Supply voltage
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