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PIN EQUIVALENT INPUT AND OUTPUT SCHEMATIC DIAGRAMS

(Note: Resistor values are equivalent resistance and not tested).

VCC

INPUT

GND

400 W

SOUT

GND

10 W

TLC5923

SLVS550 – DECEMBER 2004

Terminal Functions (continued)

TERMINAL

I/O

DESCRIPTION

NAME

NO.

OUT1

8

O

Constant current output

OUT2

10

O

Constant current output

OUT3

11

O

Constant current output

OUT4

12

O

Constant current output

OUT5

13

O

Constant current output

OUT6

15

O

Constant current output

OUT7

16

O

Constant current output

OUT8

17

O

Constant current output

OUT9

18

O

Constant current output

OUT10

20

O

Constant current output

OUT11

21

O

Constant current output

OUT12

22

O

Constant current output

OUT13

23

O

Constant current output

OUT14

25

O

Constant current output

OUT15

26

O

Constant current output

6, 14, 19, 24,

PGND

Power ground

27

Data shift clock. Note that the internal connections are switched by MODE (pin #30). At

SCLK

4

I

SCLK

↑, the shift-registers selected by MODE shift the data.

SIN

5

I

Data input of serial I/F

SOUT

28

O

Data output of serial I/F

VCC

32

Power supply voltage

XERR

29

O

Error output. XERR is open drain terminal. XERR gets L when LOD or TEF detected.

Data latch. Note that the internal connections are switched by MODE (pin #30). At XLAT

↑, the

XLAT

3

I

latches selected by MODE get new data.

Figure 2. Input Equivalent Circuit (BLANK, XLAT, SCLK, SIN, MODE)

Figure 3. Output Equivalent Circuit

5