CS5464ISZ Cirrus Logic, Inc., CS5464ISZ Datasheet

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CS5464ISZ

Manufacturer Part Number
CS5464ISZ
Description
SSOP28
Manufacturer
Cirrus Logic, Inc.
Datasheet

Specifications of CS5464ISZ

Date_code
10+
Features
• Energy Linearity: ±0.1% of Reading over
• On-chip Functions:
• Meets Accuracy Spec for IEC, ANSI, & JIS
• Low Power Consumption
• Tamper Detection and Correction
• Ground-referenced Inputs with Single
• On-chip 2.5 V Reference (25 ppm / °C typ.)
• Power Supply Monitor Function
• Three-wire Serial Interface to
• Power Supply Configurations
http://www.cirrus.com
1000:1 Dynamic Range
Supply
Microcontroller or E
GND: 0 V, VA+: +5 V, VD+: +3.3 V to +5 V
- Voltage and Current Measurement
- Active, Reactive, and Apparent Power/Energy
- RMS Voltage and Current Calculations
- Current Fault and Voltage Sag Detection
- Calibration
- Phase Compensation
- Temperature Sensor
- Energy Pulse Outputs
Three-channel, Single-phase Power/Energy IC
& Description
2
PROM
Copyright © Cirrus Logic, Inc. 2007
(All Rights Reserved)
Description
The CS5464 is a watt-hour meter on a chip. It
measures line voltage and current and calcu-
lates active, reactive, apparent power, energy,
power factor, and RMS voltage and current.
There are two separate inputs to measure line,
ground, and/or neutral current enabling the
meter to detect tampering and to continue oper-
ating. An internal RMS voltage reference can be
used if voltage measurement is disabled by
tampering.
Four ∆Σ analog-to-digital converters are used to
measure voltage, two currents, and temperature.
The CS5464 is designed to interface to a variety
of voltage and current sensors.
Additional features include system-level calibra-
tion, voltage sag and current fault detection,
peak detection, phase compensation, and ener-
gy pulse outputs.
ORDERING INFORMATION
See
Page
44.
CS5464
DS682F1
MAR ‘07

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