SPEC-1587 (REV. 5)

4/18

29-09-2017

SA4106A

PIN DESCRIPTION

Designation

Pin No.

Description

AGND

20

Analog Ground. This is the reference pin for the current and voltage signal sensing

VDD

8

Positive Supply Voltage. The voltage to this pin should be +2.5V ± 10% with respect to

AGND.

VSS

14

Negative Supply Voltage. The voltage to this pin should be -2.5V ± 10% with respect to

AGND.

IVP

19

Analog Input for Voltage. The maximum current into the voltage sense input IVP should be

IIP, IIN

2, 1

Analog Inputs for Current. The maximum current into the current sense inputs IIP/IIN should

VREF

3

This pin provides the connection for the reference current setting resistor. A 47k

 resistor

R0, R1, R2, R3

6, 5, 4, 11

Rated Condition Select inputs. These input pins are used for selecting between the different

rated condition configurations. Refer to the Rated Condition Select section.

FMS

7

Fast Mode Select input. This three state input is used to select between STANDARD and

FAST mode and provides an extended selection of meter constants. Refer to the Rated

Condition Select and Fast Mode Select sections.

DIRI

18

Direction Select input. This input is used to enable either bidirectional or unidirectional

energy measurement.

ACSEL

9

Anti-Creep Threshold Select input. This three state input is used to select the anti-creep

threshold. It is also used to deactivate the anti-creep feature. Refer to the Anti-Creep

Threshold Select section.

ACST

16

Anti-Creep State output. This output pin indicates the state of the anti-creep circuit. Refer

to the Anti-Creep State Output section.

DIRO

17

Direction Indicator output. This output indicates the direction of energy flow.

LED

13

Calibration LED output. Refer to the Rated Condition Select section for the pulse rate output

options.

MON, MOP

15, 12

Motor pulse outputs. These outputs can drive an electro-mechanical counter directly. Refer

to the Rated Condition Select section for the pulse rate output options.

NC

10

No connection, leave unconnected.

Figure 3: Pin connections

ORDERING INFORMATION

Part Number

Package

SA4106ASAR

SOIC20 (RoHS compliant)

1

2

3

4

5

6

7

8

20

19

18

17

IIN

IIP

VREF

R2

R1

R0

FMS

VDD

IVP

DIRI

DIRO

9

10

16

15

ACSEL

NC

ACST

MON

AGND

14

13

VSS

LED

12

11

MOP

R3