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CS5461 데이터시트(PDF) 1 Page - Cirrus Logic

부품명 CS5461
상세설명  Single Phase Bi-Directional Power/Energy IC
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제조업체  CIRRUS [Cirrus Logic]
홈페이지  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

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Copyright
© Cirrus Logic, Inc. 2004
(All Rights Reserved)
http://www.cirrus.com
CS5461
Single Phase Bi-Directional Power/Energy IC
Features
Energy Data Linearity: ±0.1% of Reading
over 1000:1 Dynamic Range
On-Chip Functions: Energy, I
∗ V,
IRMS and VRMS, 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/°C typ)
Simple Three-Wire Digital Serial Interface
Power Supply Monitor
Interface Optimized for Shunt Sensor
Mechanical Counter/Stepper Motor Drive
Smart “Auto-Boot” 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
∆Σ 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, IRMS, and VRMS, 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
°C to +85°C
24-pin SSOP
PGA
VA+
VD+
IIN+
IIN-
VIN+
VIN-
VREFIN
VREFOUT
VA-
XIN
XOUT CPUCLK
DGND
CS
SDO
SDI
SCLK
INT
FOUT
High Pass
Filter
Voltage
Reference
System
Clock
/K
Clock
Generator
Serial
Interface
E-to-F
Power
Monitor
PFMON
x1
RESET
Digital
Filter
Calibration
EDIR
High Pass
Filter
MODE
EOUT
x10
Power
Calculation
Engine
4th Order
∆Σ
Modulator
2nd Order
∆Σ
Modulator
Temperature
Sensor
Digital
Filter
x10,x50
Aug 04
DS546F2


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