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CS5464-ISZ データシート(PDF) 1 Page - Cirrus Logic

部品番号 CS5464-ISZ
部品情報  Three-channel, Single-phase Power/Energy IC
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メーカー  CIRRUS [Cirrus Logic]
ホームページ  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS5464-ISZ データシート(HTML) 1 Page - Cirrus Logic

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Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
© Cirrus Logic, Inc. 2006
(All Rights Reserved)
http://www.cirrus.com
CS5464
Three-channel, Single-phase Power/Energy IC
Features
• Energy Data Linearity: ±0.1% of Reading
over 1000:1 Dynamic Range
• On-chip Functions:
- Instantaneous Voltage, Current, and Power
- IRMS and VRMS, Active, Reactive, and
Apparent Power
- Current Fault and Voltage Sag Detect
- System Calibrations / Phase Compensation
- Temperature Sensor
- Energy-to-pulse Conversion
- Positive-only Accumulation Mode
• Meets Accuracy Spec for IEC, ANSI, & JIS
• Low Power Consumption
• Tamper Detection in 2-Wire Distribution
Systems
• GND-referenced Signals with Single Supply
• On-chip 2.5 V Reference (25 ppm/°C typ)
• Power Supply Monitor
• Simple Three-wire Digital Serial Interface
• “Auto-boot” Mode from Serial E2PROM.
• Power Supply Configurations
VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to +5 V
Description
The CS5464 is an integrated power measure-
ment
device
which
combines
three
∆Σ
analog-to-digital converters, power calculation
engine, energy-to-frequency converter, and a
serial interface on a single chip. It is designed to
accurately measure instantaneous current and
voltage and calculate VRMS, IRMS, instantaneous
power, active power, apparent power, and reac-
tive
power
for
high-performance
power
measurement applications.
The CS5464 is optimized to interface to shunt re-
sistors or current transformers for current
measurement, and to resistive dividers or poten-
tial transformers for voltage measurement.
The
CS5464
features
a
tamper
detection
scheme that uses the larger of the active power
measurements to register energy. Additional fea-
tures
include
system-level
calibration,
temperature sensor, voltage sag & current fault
detection, and phase compensation.
ORDERING INFORMATION
See Page 45.
VA+
VD+
IIN1+
IIN1-
VREFIN
VREFOUT
AGND
XIN
XOUT CPUCLK
DGND
CS
SDO
SDI
SCLK
INT
Voltage
Reference
System
Clock
/K
Clock
Generator
Serial
Interface
E-to-F
Power
Monitor
PFMON
x1
RESET
Calibration
MODE
Power
Calculation
Engine
4th Order
∆Σ
Modulator
Temperature
Sensor
Digital
Filter
PGA
HPF
Option
E1
E2
E3
VIN+
VIN-
2nd Order
∆Σ
Modulator
Digital
Filter
10x
HPF
Option
IIN2+
IIN2-
Digital
Filter
4th Order
∆Σ
Modulator
HPF
Option
PGA
MAR ‘06
DS682PP1


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