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CS5461-IS Datasheet

  • CS5461-IS

  • SINGLE PHASE BI-DIRECTIONAL POWER/ENERGY IC

  • 984.00KB

  • 46页

  • CIRRUS

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CS5461
Single Phase Bi-Directional Power/Energy IC
Features
Energy Data Linearity: 卤0.1% of Reading
over 1000:1 Dynamic Range
On-Chip Functions: Energy, I
鈭?/div>
V,
I
RMS
and V
RMS
, Energy-to-Pulse Conversion
AC/DC System Calibrations
Meets Accuracy Spec for IEC 687/1036, JIS
Power Consumption <12 mW
On-Chip Temperature Sensor
Voltage Sag Detect
Adjustable Input Range on Current Channel
Phase Compensation
GND-Referenced Signals with Single Supply
On-chip 2.5 V Reference (25 ppm/掳C typ)
Simple Three-Wire Digital Serial Interface
Power Supply Monitor
Interface Optimized for Shunt Sensor
Mechanical Counter/Stepper Motor Drive
Smart 鈥淎uto-Boot鈥?Mode from Serial
EEPROM with no microcontroller.
Power Supply Configurations
VA+ = +5 V; VA- = 0 V; VD+ = +3.3 V to +5 V
Description
The CS5461 is an integrated power measure-
ment device which combines two
鈭單?/div>
ADCs, high
speed power calculation functions, and a serial
interface on a single chip. It is designed to accu-
rately measure Instantaneous Current and
Voltage, and calculate: Instantaneous Power,
Average Power, I
RMS
, and V
RMS
, for sin-
gle-phase 2- or 3-wire power metering
applications. The CS5461 can interface to a
low-cost shunt resistor or transformer for current
measurement, and to a resistive divider or poten-
tial transformer for voltage measurement. The
CS5461 features a bi-directional serial interface
for communication with a micro-controller and a
programmable energy-to-pulse output function.
CS5461 has on-chip functionality to facilitate AC
or DC system-level calibration. Additional fea-
tures include on-chip temperature sensor,
voltage sag detection, and phase compensation.
ORDERING INFORMATION:
CS5461-IS
-40掳C to +85掳C
24-pin SSOP
VA+
RESET
High Pass
Filter
VD+
IIN+
IIN-
PGA
x10,x50
4th Order
鈭單?/div>
Modulator
Digital
Filter
MODE
CS
Power
Calculation
Engine
SDI
Serial
Interface
SDO
SCLK
INT
VIN+
VIN-
x10
2nd Order
鈭單?/div>
Modulator
Digital
Filter
VREFIN
x1
Temperature
Sensor
E-to-F
High Pass
Filter
System
Clock
/K
Clock
Generator
Calibration
EOUT
EDIR
FOUT
VREFOUT
Voltage
Reference
Power
Monitor
VA-
PFMON
XIN
XOUT CPUCLK
DGND
Preliminary Product Information
//www.cirrus.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
漏
Cirrus Logic, Inc. 2004
(All Rights Reserved)
Jan 04
DS546PP2
1

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