SA4106A
PIN DESCRIPTION
Designation
Pin No.
Description
Analog Ground. This is the reference pin for the current and voltage signal sensing
AGND
20
networks. The supply voltage to this pin should be mid-way between VDD and VSS
.
Positive Supply Voltage. The voltage to this pin should be +2.5V ± 10% with respect to
AGND.
VDD
VSS
8
Negative Supply Voltage. The voltage to this pin should be -2.5V ± 10% with respect to
AGND.
14
Analog Input for Voltage. The maximum current into the voltage sense input IVP should be
set at 16µARMS. The voltage sense input saturates at an input current of ±25µA peak.
IVP
19
2, 1
Analog Inputs for Current. The maximum current into the current sense inputs IIP/IIN should
be set at 16µARMS. The current sense inputs saturate at an input current of ±25µA peak.
IIP, IIN
This pin provides the connection for the reference current setting resistor. A 47k resistor
connected to VSS sets the optimum operating conditions.
VREF
3
Rated Condition Select inputs. These input pins are used for selecting between the different
rated condition configurations. Refer to the Rated Condition Select section.
R0, R1, R2, R3
6, 5, 4, 11
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.
FMS
DIRI
7
18
9
Direction Select input. This input is used to enable either bidirectional or unidirectional
energy measurement.
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.
ACSEL
Anti-Creep State output. This output pin indicates the state of the anti-creep circuit. Refer
to the Anti-Creep State Output section.
ACST
DIRO
LED
16
17
13
Direction Indicator output. This output indicates the direction of energy flow.
Calibration LED output. Refer to the Rated Condition Select section for the pulse rate output
options.
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.
MON, MOP
NC
15, 12
10
No connection, leave unconnected.
1
2
20
19
18
17
16
15
14
13
12
11
IIN
IIP
AGND
IVP
ORDERING INFORMATION
Part Number
Package
3
VREF
R2
DIRI
DIRO
ACST
MON
VSS
LED
SA4106ASAR
SOIC20 (RoHS compliant)
4
5
R1
6
R0
7
FMS
VDD
ACSEL
NC
8
9
MOP
R3
10
Figure 3: Pin connections
SPEC-1587 (REV. 5)
29-09-2017
4/18
SAMES [ SAMES ]
