GND

BLANK

SCLK

SIN

OUT0

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

1

2

3

4

5

6

7

8

9

10

11

12

13

14

OUT8

OUT9

15

16

OUT10

OUT11

VCC

IREF

XLAT

SOUT

OUT23

OUT22

OUT21

OUT20

OUT19

OUT18

OUT17

OUT16

OUT15

OUT14

28

27

26

25

24

23

22

21

20

19

18

17

OUT13

OUT12

32

31

30

29

ThermalPad

(BottomSide)

Thermal Pad

(BottomSide)

SIN

32

OUT8

SCLK

OUT9

BLANK

OUT10

GND

OUT11

VCC

OUT12

IREF

OUT13

XLAT

OUT14

SOUT

OUT15

9

10

31

11

30

12

29

13

28

14

27

15

26

16

25

TLC5947

www.ti.com

SBVS114B – JULY 2008 – REVISED JANUARY 2015

5 Pin Configuration and Functions

32-PINS

32-PINS

DAP PACKAGE

RHB PACKAGE

(TOP VIEW)

(TOP VIEW)

(1)

This device is product preview.

Pin Functions

PIN

I/O

DESCRIPTION

NAME

RHB NO. DAP NO.

Blank (all constant-current outputs off). When BLANK is high, all constant-current outputs (OUT0

through OUT23) are forced off, the grayscale PWM timing controller initializes, and the grayscale

BLANK

30

2

I

counter resets to '0'. When BLANK is low, all constant-current outputs are controlled by the

grayscale PWM timing controller.

GND

29

1

—

Power ground

This pin sets the constant-current value. OUT0 through OUT23 constant sink current is set to the

IREF

27

31

I/O

desired value by connecting an external resistor between IREF and GND.

Constant-current output. Multiple outputs can be tied together to increase the constant-current

OUT0

1

5

O

capability. Different voltages can be applied to each output.

OUT1

2

6

O

Constant-current output

OUT2

3

7

O

Constant-current output

OUT3

4

8

O

Constant-current output

OUT4

5

9

O

Constant-current output

OUT5

6

10

O

Constant-current output

OUT6

7

11

O

Constant-current output

OUT7

8

12

O

Constant-current output

OUT8

9

13

O

Constant-current output

OUT9

10

14

O

Constant-current output

OUT10

11

15

O

Constant-current output

OUT11

12

16

O

Constant-current output

OUT12

13

17

O

Constant-current output

OUT13

14

18

O

Constant-current output

OUT14

15

19

O

Constant-current output

OUT15

16

20

O

Constant-current output

OUT16

17

21

O

Constant-current output

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