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sames

sames

SA2005P

http://www.sames.co.za

Figure 2: Pin connections: Package: DIP-24, SOIC-24

Part Number

SA2005PPA

SA2005PSA

Package

DIP-24

SOIC-24

ORDERING INFORMATION

PIN DESCRIPTION

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

and V .

DD

SS

Positive supply voltage. Typically +5V if a current transformer is used for current sensing.

GND

V

DD

Designation

Description

PIN

20

6

Negative supply voltage. Typically 0V if a current transformer is used for current sensing.

V

SS

18

Voltage sense inputs. 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.

21, 24,

3

IVN1, IVN2,

IVN3

Inputs for current sensors. The termination resistor voltage from each current transformer is

converted to a current of 16µA

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

RMS

current of ±25µA peak.

23, 22,

2, 1,

5, 4

IIN1, IIP1,

IIN2, IIP2,

IIN3, IIP3

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

connected to V sets the optimum operating condition.

SS

19

VREF

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

8

SCL

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

9

SDA

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

11, 12

MON, MOP

Multiplexed phase or direction driver output.

13

Triggers a data reload from the external EEPROM.

7

RLOAD

Multiplexed LED drivers for direction and mains fail indication.

14, 15,

16

PH1, PH2,

PH3

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

10

LED

Test input. For normal operation connect this pin to V .

SS

17

TEST

1

IIP2

IVN2

GND

IIN2

IIN1

VREF

IVN3

IIP1

VSS

IIP3

IIN3

VDD

RLOAD

SCL

IVN1

TEST

PH3

PH2

PH1

PH / DIR

LED

MON

MOP

SDA

2

3

4

5

6

19

18

17

16

15

14

13

10

11

12

9

8

7

20

21

22

23

24

dr-01602

PH / DIR