ADD8709

Rev. A | Page 5 of 16

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

13

14

15

16

17

18

19

20

21

22

23

24

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

GND

1

2

3

4

5

6

7

8

9

10

11

12

GND

ADD8709

TOP VIEW

(Not to Scale)

Figure 2. 48-Lead Low-Profile Quad Flat Package (ST-48)

Table 4. Pin Function Descriptions

Pin No.

Name

Description

1

Regulator feedback. Compares a percentage of the regulator output to the internal 1.2 V voltage

reference.

2

GND

Ground. Normally 0 V.

3

Supply voltage. Normally 16 V.

4

Regulator output voltage. Provides a regulated output voltage for use as a reference for the gamma

resistors.

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

Buffer inputs. An external resistor calculator is available upon request from your local sales office.

23

GND

Ground. Normally 0 V.

24

Supply voltage. Normally 16 V.

25

26

Buffer outputs. These buffers can swing to ground.