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CS5460A-BS 参数 Datasheet PDF下载

CS5460A-BS图片预览
型号: CS5460A-BS
PDF下载: 下载PDF文件 查看货源
内容描述: 单相双向功率/电能IC [Single Phase Bi-Directional Power/Energy IC]
分类和应用:
文件页数/大小: 54 页 / 879 K
品牌: CIRRUS [ CIRRUS LOGIC ]
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CS5460A
Single Phase Bi-Directional Power/Energy IC
Features
Energy Data Linearity: ±0.1% of Reading
over 1000:1 Dynamic Range.
On-Chip Functions: (Real) Energy, I
V,
I
RMS
and V
RMS
, Energy-to-Pulse
Conversion
Smart “Auto-Boot” Mode from Serial
EEPROM Enables Use without MCU.
AC or DC System Calibration
Mechanical Counter/Stepper Motor Driver
Meets Accuracy Spec for IEC 687/1036, JIS
Typical Power Consumption <12 mW
Interface Optimized for Shunt Sensor
V vs. I Phase Compensation
Ground-Referenced Signals with Single
Supply
On-chip 2.5 V Reference (MAX 60 ppm/°C
drift)
Simple Three-Wire Digital Serial Interface
Watch Dog Timer
Power Supply Monitor
Power Supply Configurations
VA+ = +5 V; VA- = 0 V; VD+ = +3.3 V to +5 V
Description
The CS5460A is a highly integrated power mea-
surement solution which combines two
∆Σ
Analog-to-Digital Converters (ADCs), high speed
power calculation functions, and a serial interface
on a single chip. It is designed to accurately mea-
sure and calculate: Real (True) Energy,
Instantaneous Power, I
RMS
, and V
RMS
for single
phase 2- or 3-wire power metering applications.
The CS5460A interfaces to a low-cost shunt resis-
tor or transformer to measure current, and to a
resistive divider or potential transformer to mea-
sure voltage. The CS5460A features a
bi-directional serial interface for communication
with a micro-controller and a pulse output engine
for which the average pulse frequency is propor-
tional to the real power. The CS5460A has on-chip
functionality to facilitate AC or DC system-level
calibration.
The “Auto-Boot” feature allows the CS5460A to
function ‘stand-alone’ and to initialize itself on sys-
tem power-up. In Auto-Boot Mode, the CS5460A
reads the calibration data and start-up instructions
from an external EEPROM. In this mode, the
CS5460A can operate without a microcontroller, in
order to lower the total bill-of-materials cost.
VD+
High Pass
Filter
4
th
Order
∆Σ
Modulator
Digital
Filter
Power
Calculation
Engine
(Energy
I*V
I
RMS
,V
RMS
)
Digital
Filter
High Pass
Filter
Power
Monitor
System
Clock
/K
Clock
Generator
Watch Dog
Timer
MODE
CS
Control /
Serial
Interface
SDI
SDO
SCLK
INT
Energy-to-
Pulse
Converter
VA+
RESET
IIN+
IIN-
PGA
x10,x50
VIN+
VIN-
x10
2
nd
Order
∆Σ
Modulator
EDIR
EOUT
VREFIN
x1
VREFOUT
Voltage
Reference
Calibration
SRAM
VA-
PFMON
XIN XOUT CPUCLK
DGND
©
Cirrus Logic, Inc.
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2004
(All Rights Reserved)
SEP ‘04
DS487F2
1