+ FEATURES
+ Functionally compatible with the SA9602E with reduced
external components
+ Uni-directional power and energy measurement
+ Meets the IEC 521/1036 Specification requirements for
Class 1 AC Watt hour meters
+ Protected against ESD
samessames
Single Phase Uni-directional Power / Energy
Metering IC with Instantaneous Pulse Output
SA2002E
1/10
SA2002E (REV. 5)
17-08-00
+ 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 SAMES SA2002E is an enhancement of the SA9602E, as
the circuit contains the oscillator on chip.
The SAMES SA2002E single phase uni-directional
power/energy metering integrated circuit generates a pulse
rate output with a frequency proportional to the power
consumption.
The SA2002E 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 SA2002E integrated circuit is available in 8, 14 and 20 pin
dual-in-line plastic (DIP) as well as 16 and 20 pin small outline
(SOIC) package types.
Figure 1: Block diagram
IIP
IIN
IVP
GND
VREF
DR-01586
POWER
TO
FREQUENCY
FOUT
V
DD
V
SS
POWER
INTEGRATOR
ANALOG
SIGNAL
PROCESSING
TIMINGOSC
VOLTAGE
REF.
