SA2005P Datasheet, PDF(3/16 Page) Sames – Programmable Three Phase Power / Energy Metering IC for Stepper Motor / Impulse Counter Applications

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SA2005P Datasheet, PDF (3/16 Pages) Sames – Programmable Three Phase Power / Energy Metering IC for Stepper Motor / Impulse Counter Applications

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SA2005P

sames

PIN DESCRIPTION

PIN Designation Description

GND

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

VDD

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

VSS

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

21, 24, IVN1, IVN2, Voltage sense inputs. The current into the A/D converter should be set at 14ÂµARMS at nominal mains

IVN3

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

23, 22,

2, 1,

5, 4

IIN1, IIP1,

IIN2, IIP2,

IIN3, IIP3

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

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

current of Â±25ÂµA peak.

VREF

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

connected to VSS sets the optimum operating condition.

SCL

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

SDA

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

TEST

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

LED

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

11, 12 MON, MOP Motor pulse outputs. These outputs can be used to drive an impulse counter or stepper motor directly.

13 PH / DIR Multiplexed phase or direction driver output.

RLOAD

14, 15, PH1, PH2,

PH3

Triggers a data reload from the external EEPROM.

Multiplexed LED drivers for direction and mains fail indication.

IIP2 1

IIN2 2

IVN3 3

IIP3 4

IIN3 5

VDD 6

RLOAD 7

SCL 8

SDA 9

LED 10

MON 11

MOP 12

24 IVN2

23 IIN1

22 IIP1

21 IVN1

20 GND

19 VREF

18 VSS

17 TEST

16 PH3

15 PH2

14 PH1

13 PH / DIR

dr-01602

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

ORDERING INFORMATION

Part Number

SA2005PPA

SA2005PSA

Package

DIP-24

SOIC-24

http://www.sames.co.za

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