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SA9602E
(Rev.:2017)

Single Phase Unidirectional Power/Energy Metering IC with Instantaneous Pulse Output

South African Micro Electronic Systems 

Single Phase Unidirectional Power/Energy

Metering IC with Instantaneous Pulse Output

SA9602E

FEATURES

 Pin and functionally compatible with the SA9102E with

reduced external components

 Performs unidirectional power and energy measurement

 Meets the IEC 521/1036 Specification requirements for

Class 1 AC Watt hour meters

 Protected against ESD

 Total power consumption rating below 25mW

 Adaptable to different types of current sensors

 Operates over a wide temperature range

 Precision voltage reference on-chip

 Different pulse rate options available

DESCRIPTION

The SA9602E is an enhancement of the SA9102E, as no

external capacitors are required for the A/D converters.

The SA9602E single phase unidirectional power/energy

metering integrated circuit generates a pulse rate output, the

frequency of which is proportional to the power consumption.

The SA9602E performs the calculation for active power. The

method of calculation takes the power factor into account.

Energy consumption can be determined by the power

measurement being integrated over time.

This innovative universal single phase power/energy

metering integrated circuit is ideally suited for energy

calculations in applications such as residential municipal

metering and factory energy metering and control.

The SA9602E integrated circuit is available in a 20 pin small

outline (SOIC20) RoHS compliant package.

IIP

IIN

IVP

AGND

CURRENT

CHANNEL

ADC

ANALOG SIGNAL

PROCESSING

VOLTAGE

CHANNEL

ADC

POWER

INTEGRATOR

POWER TO

FREQUENCY

FOUT1

FOUT2

VOLTAGE REFERENCE

AND

CURRENT BIASING

OSCILLATOR

AND

TIMING

VREF

OSC1

Figure 1: Block diagram

OSC2

VSS

VDD

SPEC-3117 (REV. 5)

1/10

29-09-2017

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