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sames

sames

SA2005F

http://www.sames.co.za

Figure 2: Pin connections: Package: DIP-20, SOIC-20

DR-01571

1

IIP2

IVN2

GND

IIN2

IIN1

VREF

IVN3

IIP1

VSS

IIP3

IIN3

VDD

TEST

FOUT

IVN1

PGM1

PGM0

NC

TCLK

DIR

2

3

4

5

6

15

14

13

12

11

10

9

8

7

16

17

18

19

20

Part Number

SA2005FPA

SA2005FSA

Package

DIP-20

SOIC-20

ORDERING INFORMATION

PIN DESCRIPTION

Analog Ground. The voltage to this pin should be mid-way between V

and V .

DD

SS

Positive Supply voltage.

Negative Supply voltage.

The current into the A/D converter should be set at 14µA

at nominal mains

RMS

voltage. The voltage sense input saturates at an input current of ±25µA peak.

Inputs from current sensors. The shunt resistor voltage from each channel is

converted to a current of 16µA

at rated conditions. The current sense input

RMS

saturates at an input current of ±25µA peak.

This pin provides the connection for the reference current setting resistor.

A 24kW resistor connected to V sets the optimum operating condition.

SS

Test inputs. For normal operation these pins must be connected to V .

SS

Pulse rate output. The pulse frequency is proportional to the sum of the power

measured on all three phases. The pulse format also indicates the direction of

energy flow.

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

FOUT Pulse format Select. These inputs define the FOUT pulse width

and format.

GND

V

DD

V

SS

IVN1, IVN2, IVN3

IIN1, IIP1, IIN2, IIP2,

IIN3, IIP3

VREF

TCLK, TEST

FOUT

DIR

PGM0, PGM1

Designation

Description

PIN

16

6

14

17, 20, 3

19, 18, 2, 1,

5, 4

15

7, 10

12, 13

9

8