EVAL-ADM1166TQEBZ【PDF 8/32 页】BOARD EVAL FOR ADM1166TQ

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ADM1166

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

48

47

46

45

44

43

42

41

40

39

38

37

NC 1

36 NC

VX1 1

VX2 2

VX3 3

VX4 4

VX5 5

VP1 6

VP2 7

VP3 8

VP4 9

VH 10

ADM1166

TOP VIEW

(Not to Scale)

30

29

28

27

26

25

24

23

22

21

PDO1

PDO2

PDO3

PDO4

PDO5

PDO6

PDO7

PDO8

PDO9

PDO10

VX1 2

VX2 3

VX3 4

VX4 5

VX5 6

VP1 7

VP2 8

PIN 1

INDICATOR

ADM1166

TOP VIEW

(Not to Scale)

35 PDO1

34 PDO2

33 PDO3

32 PDO4

31 PDO5

30 PDO6

29 PDO7

VP3 9

VP4 10

VH 11

NC 12

28 PDO8

27 PDO9

26 PDO10

25 NC

NOTE

1. EXPOSED PAD SHOULD BE SOLDERED

13

14

15

16

17

18

19

20

21

22

23

24

TO THE BOARD FOR IMPROVED

MECHANICAL STABILITY.

NC = NO CONNECT

Figure 3. 40-Lead LFCSP Pin Configuration

Table 4. Pin Function Descriptions

Pin No.

Figure 4. 48-Lead TQFP Pin Configuration

40-Lead

48-Lead

LFCSP

TQFP

1, 12, 13, 24,

Mnemonic

NC

Description

No Connect.

25, 36, 37, 48

1 to 5

2 to 6

VX1 to VX5 (VXx)

High Impedance Inputs to Supply Fault Detectors. Fault thresholds can be set from 0.573 V to

1.375 V. Alternatively, these pins can be used as general-purpose digital inputs.

6 to 9

7 to 10

VP1 to VP4 (VPx)

Low Voltage Inputs to Supply Fault Detectors. Three input ranges can be set by altering the

input attenuation on a potential divider connected to these pins, the output of which

connects to a supply fault detector. These pins allow thresholds from 2.5 V to 6.0 V, from

1.25 V to 3.00 V, and from 0.573 V to 1.375 V.

10

11

VH

High Voltage Input to Supply Fault Detectors. Two input ranges can be set by altering the

input attenuation on a potential divider connected to this pin, the output of which connects

to a supply fault detector. This pin allows thresholds from 6.0 V to 14.4 V and from 2.5 V to 6.0 V.

11

12

13

14

15

16

AGND 1

REFGND 1

REFIN

Ground Return for Input Attenuators.

Ground Return for On-Chip Reference Circuits.

Reference Input for ADC. Nominally, 2.048 V. This pin must be driven by a reference voltage.

The on-board reference can be used by connecting the REFOUT pin to the REFIN pin.

14

17

REFOUT

Reference Output, 2.048 V. Typically connected to REFIN. Note that the capacitor must be

connected between this pin and REFGND. A 10 μF capacitor is recommended for this purpose.

15 to 20

21 to 30

31

32

18 to 23

26 to 35

38

39

DAC1 to DAC6

PDO10 to PDO1

PDOGND 1

VCCP

Voltage Output DACs. These pins default to high impedance at power-up.

Programmable Driver Outputs.

Ground Return for Driver Outputs.

Central Charge-Pump Voltage of 5.25 V. A reservoir capacitor must be connected between

this pin and GND. A 10 μF capacitor is recommended for this purpose.

33

34

35

36

37, 38

40

41

42

43

44, 45

A0

A1

SCL

SDA

AUX2, AUX1

Logic Input. This pin sets the seventh bit of the SMBus interface address.

Logic Input. This pin sets the sixth bit of the SMBus interface address.

SMBus Clock Pin. Bidirectional, open-drain pin that requires external resistive pull-up.

SMBus Data Pin. Bidirectional, open-drain pin that requires external resistive pull-up.

Auxiliary, Single-Ended ADC Inputs.

Rev. 0 | Page 8 of 32

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