STPM32 Datasheet, PDF (1/2 Pages) STMicroelectronics – Taking care of every milliwatt

STPM32, STPM33, STPM34
Taking care of every milliwatt
Smart metering ICs keep electricity bill consistency with high accuracy
even down to extremely low current levels
STPM32, STPM33, STPM34 are high
accuracy AFE (Analog Front End)
for DC and AC energy
measurement, offering high
accuracy down to extremely
low current typical of home
appliances in stand-by.
A full set of on-board features
provides high system integration
and enable on-chip power-
quality monitoring, reducing
smart-meter cost of ownership,
and contributing to a fast and
easy design to dramatically
reduce manufacturing time and
cost.
KEY FEATURES
HIGH ACCURACY
• Applicable to Class 0.2 meters
• < 0.1% active power accuracy over a
dynamic range of 5000:1
• 4 kHz Bandwidth
• Single point calibration
FLEXIBILITY
• AC and DC components measurement
• Multiple sensors support: Shunt, current
transformer, Rogowsky coils
• Multiple host interfaces 5 and 3 wires SPI,
UART
• I, V bit stream available to host controller
for customer own processing
SECURITY AND COMPLIANCY
• Case removal and Neutral Anti-tamper
detection
• Exceeds 50-60 Hz EN 50470-x, IEC
62053-2x, ANSI12.2x
INTEGRATION
• Up to 4 independent 24 bits ∑Δ ADC
with PGA
• Integrated DSP for “turn-key” energy
parameters calculations
• Built-in twin independently temperature
compensated voltage references
• Double LED output programmable
for active and reactive energy pulses
generation
KEY APPLICATIONS
• Single, split and poly-phase energy meters
up to class 0.2 accuracy
• Smart plugs and appliances
• Industrial instruments
• Servers, lighting and smart power
monitoring systems
www.st.com/stpm3metering