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sames

SA2002P

http://www.sames.co.za

Figure 2: Pin connections: Package: PDIP16, SOIC16

Part Number

SA2002PPA

SA2002PSA

Package

PDIP16

SOIC16

ORDERING INFORMATION

PIN DESCRIPTION

dr-01606

1

IIN

GND

IIP

IVP

LED

DIRO

TEST

VREF

RLOAD

MOP

MON

SDA

2

3

4

5

611

10

9

8

7

12

13

14

15

16

SCL

V

DD

V

SS

FMO

Pin

Designation

Description

16

GND

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

and V .

DD

SS

5

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.

9

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.

15

IVP

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

at

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

RMS

1, 2

IIN, IIP

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

current of 16µA

at rated conditions. The current sense input saturates at an input current

of ±25µA peak.

RMS

3

VREF

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

resistor

connected to V

set the optimum operating condition.

W

SS

12

SCL

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

4

6

RLOAD

FMO

Triggers the SA2002P to reload data from the external EEPROM.

10

TEST

13

LED

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

11

SDA

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

7, 8

MON, MOP

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

motor directly.

Mains zero crossing output.

14

DIRO

Direction output. This output indicates the energy flow direction.