PM4301APDA Application Note:

Evaluation Module for SA4301A and SA9105G

SPEC-1695 (REV. 2)

1/14

PRELIMINARY

08-12-2005

PM4301APDA

FEATURES

n

Compatible with SA4301A and SA9105G

n

Operation from either a single 5V supply or a dual 2.5V

supply

n

Connection of various current transformers, mains

voltage and power supply by means of screw terminals

n

On-board LED indicators for pulse output and tamper

conditions

n

On-board optically isolated pulse output for direct

connection to test equipment

n

On-board precision calibration networks by means of

analog trimpots

n

Connection of stepper motor counter or impulse counter

by means of screw terminals

n

Easily accessible jumpers for setting up all possible

device options

DESCRIPTION

The PM4301APDA evaluation module is designed to

demonstrate the functionality and performance of the

SA4301A and SA9105G energy metering devices. A

complete three phase energy meter can be built up and

evaluated using this module, thereby allowing the

performance of the SA4301A/SA9105G to be evaluated in

an end user application. The required current sensing

elements, a power supply as well as a stepper motor

counter or an impulse counter can be connected by means

of screw terminals.

The on-board calibration networks are based on trimpots

and allow accurate calibration of the energy meter. The

various device options can be selected by means of on-

board jumpers, while all device outputs have been equipped

with LED indicators for easy evaluation. An opto-isolated

pulse output is available for direct connection to any energy

meter test equipment.

This application note should be used in conjunction with the

datasheet for the specific device that is being evaluated.

Current

Sense

Input

Networks

Voltage

Sense

Input

Networks

With

Calibration

SA4301A

SA9105G

I1P

I1N

I2P

I2N

I3P

I3N

V1

V2

V3

VN

Tamper LED

Array

Opto-isolated

Pulse

Output

C

E

Pulse

LED

Device

Configuration

Switches

P

N

Counter Output

Power

Supply

Filter

and

GND

Generator

+

-

0

Current

Sense

Input

Networks

Voltage

Sense

Input

Networks

With

Calibration

SA4301A

SA9105G

I1P

I1N

I2P

I2N

I3P

I3N

V1

V2

V3

VN

Tamper LED

Array

Opto-isolated

Pulse

Output

C

E

Pulse

LED

Device

Configuration

Switches

P

N

Counter Output

Power

Supply

Filter

and

GND

Generator

+

-

0

Figure 1: Functional block diagram