TLC5941-Q1

TERMINAL FUNCTION

TERMINAL

I/O

DESCRIPTION

NAME

NO.

Blank all outputs. When BLANK = H, all OUTn outputs are forced OFF. GS counter is also reset. When

BLANK

2

I

BLANK = L, OUTn are controlled by grayscale PWM control.

GND

1

G

Ground

GSCLK

25

I

Reference clock for grayscale PWM control

IREF

27

I/O

Reference current terminal

MODE

6

I

DC mode.

OUT0

7

O

Constant-current output

OUT1

8

O

Constant-current output

OUT2

9

O

Constant-current output

OUT3

10

O

Constant-current output

OUT4

11

O

Constant-current output

OUT5

12

O

Constant-current output

OUT6

13

O

Constant-current output

OUT7

14

O

Constant-current output

OUT8

15

O

Constant-current output

OUT9

16

O

Constant-current output

OUT10

17

O

Constant-current output

OUT11

18

O

Constant-current output

OUT12

19

O

Constant-current output

OUT13

20

O

Constant-current output

OUT14

21

O

Constant-current output

OUT15

22

O

Constant-current output

SCLK

4

I

Serial data shift clock

SIN

5

I

Serial data input

SOUT

24

O

Serial data output

TEST

26

I

Test. Must be connected to VCC.

VCC

28

I

Power supply voltage

XERR

23

O

Error output. Open-drain. Goes L when LOD or TEF is detected.

Level triggered latch signal. When XLAT = high, the TLC5941 writes data from the input shift register to either

XLAT

3

I

GS register (MODE = low) or DC register (MODE = high). When XLAT = low, the data in the GS or DC

registers is held constant and does not change.

6

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Product Folder Link(s): TLC5941-Q1