AD8280

Rev. C | Page 6 of 24

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

3

VBOT2S

4

VBOT1S

7

VBOT1

1

2

VBOT2

8

VIN2

9

VIN3

10

VIN4

12

VIN6

VTOP

11

VIN5

GND1

GND2

DGT0

ALRMSEL

NPTC

VCC

DGT1

SEL0

SEL1

AVOUTUV

AVOUTOT

AVOUTOV

36

35

34

33

31

30

29

28

27

26

25

32

14

13

15

16

17

18

19

20

21

22

23

24

48

47

46

45

44

43

42

41

40

39

38

37

PIN 1

AD8280

Figure 2. Pin Configuration

Table 4. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

VBOT2

Lowest Potential of Six-Cell Stack.

2

VBOT2S

Lowest Potential of Six-Cell Stack. Tie to VBOT2.

3

VBOT1S

Lowest Potential of Six-Cell Stack. Tie to VBOT1.

4

VBOT1

Lowest Potential of Six-Cell Stack.

5

VIN0

Input Voltage for Bottom of Cell 1.

6

VIN1

Input Voltage for Bottom of Cell 2/Top of Cell 1.

7

VIN2

Input Voltage for Bottom of Cell 3/Top of Cell 2.

8

VIN3

Input Voltage for Bottom of Cell 4/Top of Cell 3.

9

VIN4

Input Voltage for Bottom of Cell 5/Top of Cell 4.

10

VIN5

Input Voltage for Bottom of Cell 6/Top of Cell 5.

11

VIN6

Input Voltage for Top of Cell 6.

12

VTOP

Highest Potential of Six-Cell Stack.

13

VTOPS

Highest Potential of Six-Cell Stack. Tie to VTOP.

14

VT1

Temperature Input 1.

15

VT2

Temperature Input 2.

16

TESTI

Test Input.

17

AIOUTOV

Alarm Current Output, Overvoltage. Used in daisy-chain configuration.

18

AIOUTUV

Alarm Current Output, Undervoltage. Used in daisy-chain configuration.

19

AIOUTOT

Alarm Current Output, Overtemperature. Used in daisy-chain configuration.

20

ENBI

Enable Input. When ENBI is logic high, the part is enabled; when ENBI is logic low, the part is disabled.

21

OV

Overvoltage Trip Point.

22

UV

Undervoltage Trip Point.

23

OT

Overtemperature Trip Point.

24

DGT2

Digital Select Pin 2. Used with DGT0 and DGT1 to select deglitch time (see Table 7).

25

AVOUTOT

Alarm Voltage Output, Overtemperature.

26

AVOUTUV

Alarm Voltage Output, Undervoltage.

27

AVOUTOV

Alarm Voltage Output, Overvoltage.