AK5602A Datasheet, PDF (1/68 Pages) Asahi Kasei Microsystems – Energy Metering LSI for multi phase, high accurate application

[AK5602A]
AK5602A
Energy Metering LSI for multi phase, high accurate application
Features
z Suitable for three phase, 3 wired or 4 wired
Operational Summary
AK5602A is one of the most advanced and functional
energy metering or energy monitoring application
z Provide less than 0.1 % active & reactive energy
LSIs for multi phase energy measurement.
Current and voltage signals through CT, Hall sensor, or
error over a dynamic range of 1000 to 1, Shunt Resistors are converted into digital signal with
compatible with IEC 0.5S
z Provide instantaneous active power, reactive
18bit ADC.
Instantaneous voltage and current in each phase is
power and apparent power
z Provide voltage RMS, current RMS, voltage
multiplied and is added in total phases.
The value changes into active power after passing
instantaneous value, current instantaneous value through LPF and added with the value of a light load
and power factor in each phase.
z Provide less than 0.5 % voltage RMS, current
register. After this value is compared with the value of
rated standard value register, it outputs pulses in
RMS and power factor error
z Provide very accurate 90 degree phase shifter over
proportion to the calculation.
Regarding reactive power, input current is precisely
45Hz to 65Hz input frequency range, which is shift by 90 degree and multiplied with respective voltage
used for reactive power calculation
z Provide minute input voltage monitoring function
z Wide phase adjust. range between V & I (11 °)
z Provide positive and negative power indication
z Built-in temperature sensor
z Single power supply (3 V or 5V)
z 48LQFP
input signal. It outputs pulses in the same manner of
active power calculation.
And apparent power can be selectively derived from
either active power and reactive power calculation or
VRMS x IRMS calculation and it outputs pulses as the
result of calculation.
System Block Diagram
N Φ1 Φ2 Φ3
MS1285-E-00
AK5602A
z Active Power ( pulse, register )
z Reactive Power ( pulse, register )
z Apparent Power ( pulse, register )
z Voltage RMS value, Current RMS value
z Instantaneous voltage value & current value
z Power factor
VIF
z Wide phase adjustment range between
voltage and current ( ±11 ° at 50Hz)
VIF
z Temperature sensor ( °C : Celsius )
z Single voltage power supply ( 3V or 5V)
VIF
z 48P LQFP package
Serial IF
MPU
Comm.
LCD
EEPROM
2011/02
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