SA4101ASAR datasheet(4/15 Pages) SAMES

4 / 15 page

SPEC-1081 (REV. 2)

4/15

29-09-2017

SA4101A

PIN DESCRIPTION

Designation

Pin No.

Description

AGND

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

networks. The supply voltage to this pin should be mid-way between VDD and VSS.

VDD

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

AGND.

VSS

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

AGND.

IVP

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.

IIP, IIN

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.

VREF

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

 resistor

connected to VSS sets the optimum operating conditions.

R0, R1, R2

6, 5, 4

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

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

FAST

Fast Mode Select input. This input is used to select between STANDARD and FAST mode.

Refer to the LED Output section.

DIRI

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

energy measurement.

DIRO

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

LED

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.

Select Output. When fast mode is selected this input can be used to enable or disable the

internal pulse stability circuitry for the LED output pulses. Refer to the Select Output

section.

CNF

Manufacturers test pin. Tie to VSS for optimum protection against transients.

10, 16

No connection.

Figure 3: Pin connections

ORDERING INFORMATION

Part Number

Package

SA4101ASAR

SOIC20 (RoHS compliant)

IIN

IIP

VREF

FAST

VDD

IVP

DIRI

DIRO

CNF

MON

AGND

VSS

LED

MOP

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