SA2002P Datasheet, PDF(3/14 Page) Sames – Programmable Single Phase Kilowatt-hour Energy IC for Mechanical Counter Application

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SA2002P Datasheet, PDF (3/14 Pages) Sames – Programmable Single Phase Kilowatt-hour Energy IC for Mechanical Counter Application

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SA2002P

sames

PIN DESCRIPTION

Designation

GND

VDD

VSS

IVP

1, 2

IIN, IIP

VREF

SCL

SDA

7, 8

MON, MOP

TEST

LED

RLOAD

FMO

DIRO

Description

Analog Ground. The voltage to this pin should be mid-way between VDD and VSS.

Positive supply voltage. The voltage to this pin is typically +2.5V if a shunt resistor is used

for current sensing or in the case of a current transformer a +5V supply can be applied.

Negative supply voltage. The voltage to this pin is typically -2.5V if a shunt resistor is used

for current sensing or in the case of a current transformer a 0V supply can be applied.

Analog Input for Voltage. The current into the A/D converter should be set at 14ÂµARMS at

nominal mains voltage. The voltage sense input saturates at an input current of Â±25ÂµA peak.

Inputs for current sensor. The shunt resistor voltage from each channel is converted to a

current of 16ÂµARMS at rated conditions. The current sense input saturates at an input current

of Â±25ÂµA peak.

This pin provides the connection for the reference current setting resistor. A 24kW resistor

connected to VSS set the optimum operating condition.

Serial clock output. This output is used to strobe data from the external EEPROM.

Serial data. Send and receive data from an external EEPROM.

Motor pulse outputs. These outputs can be used to drive an impulse counter or stepper

motor directly.

Test input. For normal operation this pin must be connected to VSS.

Calibration LED output. Refer to section LED Output (LED) for the pulse rate output options.

Triggers the SA2002P to reload data from the external EEPROM.

Mains zero crossing output.

Direction output. This output indicates the energy flow direction.

IIN 1

IIP 2

VREF 3

RLOAD 4

VDD

FMO 6

MON 7

MOP 8

16 GND

15 IVP

14 DIRO

13 LED

12 SCL

11 SDA

10 TEST

9 VSS

ORDERING INFORMATION

Part Number

SA2002PPA

SA2002PSA

Package

PDIP16

SOIC16

dr-01606

Figure 2: Pin connections: Package: PDIP16, SOIC16

http://www.sames.co.za

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