Single Phase Bidirectional Power/Energy

Metering IC with Instantaneous Pulse Output

SPEC-3116 (REV. 9)

1/11

29-09-2017

SA2002H

FEATURES



Functionally compatible with the SA9602H with reduced

external components



Bidirectional 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



Precision oscillator on-chip

DESCRIPTION

The SA2002H is an enhancement of the SA9602H, as the

circuit contains the oscillator on chip.

The SA2002H single phase bidirectional power/energy

metering integrated circuit generates a pulse rate output with

a frequency proportional to the power consumption.

The SA2002H performs a 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 SA2002H integrated circuit is available in 8 pin dual inline

(PDIP8) as well as 20 pin and 16 pin small outline (SOIC20,

SOIC16) RoHS compliant package options.

Figure 1: Block diagram

*FMO and DIR not available in PDIP8 package type

VREF

VSS

OSCILLATOR

AND

TIMING

VOLTAGE REFERENCE

AND

CURRENT BIASING

AGND

IVP

IIN

IIP

FOUT

POWER TO

FREQUENCY

DIR

FMO

VDD

POWER

INTEGRATOR

ANALOG SIGNAL

PROCESSING

CURRENT

CHANNEL

ADC

VOLTAGE

CHANNEL

ADC