|
|
PDF CS5480 Data sheet ( Hoja de datos )
| Número de pieza | CS5480 | |
| Descripción | Three Channel Energy Measurement IC | |
| Fabricantes | Cirrus Logic | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de CS5480 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
CS5480
Three Channel Energy Measurement IC
Features
• Superior Analog Performance with Ultra-low Noise Level &
High SNR
• Energy Measurement Accuracy of 0.1% over 4000:1
Dynamic Range
• Current RMS Measurement Accuracy of 0.1% over 1000:1
Dynamic Range
• 3 Independent 24-bit, 4th-order, Delta-Sigma Modulators
for Voltage and Current Measurements
• 3 Configurable Digital Outputs for Energy Pulses,
Zero-crossing, or Energy Direction
• Supports Shunt Resistor, CT, & Rogowski Coil Current
Sensors
• On-chip Measurements & Calculations:
- Active, Reactive, and Apparent Power
- RMS Voltage and Current
- Power Factor and Line Frequency
- Instantaneous Voltage, Current, and Power
• Overcurrent, Voltage Sag, and Voltage Swell Detection
• Ultra-fast On-chip Digital Calibration
• Internal Register Protection via Checksum and Write
Protection
• UART/SPI™ Serial Interface
• On-chip Temperature Sensor
• On-chip Voltage Reference (25ppm / °C Typ.)
• Single 3.3V Power Supply
• Ultra-fine Phase Compensation
• Low Power Consumption: <13mW
• Power Supply Configurations
GNDA = GNDD = 0V, VDDA = +3.3V
• 4mm x 4mm, 24-pin QFN Package
ORDERING INFORMATION
See Page 69.
Description
The CS5480 is a high-accuracy, three-channel, energy mea-
surement analog front end.
The CS5480 incorporates independent, 4th order, Delta-Sigma
analog-to-digital converters for every channel, reference cir-
cuitry, and the proven EXL signal processing core to provide
active, reactive, and apparent energy measurement. In addi-
tion, RMS and power factor calculations are available.
Calculations are output via configurable energy pulse, or direct
UART/SPI™ serial access to on-chip registers.
Instantaneous current, voltage, and power measurements are
also available over the serial port. Multiple serial options are
offered to allow customer flexibility. The SPI provides higher
speed, and the 2-wire UART minimizes the cost of isolation
where required.
Three configurable digital outputs provide energy pulses, zero-
crossing, energy direction, and interrupt functions. Interrupts
can be generated for a variety of conditions including voltage
sag or swell, overcurrent, and more. On-chip register integrity
is assured via checksum and write protection. The CS5480 is
designed to interface to a variety of voltage and current sen-
sors including shunt resistors, current transformers, and
Rogowski coils.
On-chip functionality makes digital calibration simple and ul-
tra-fast, minimizing the time required at the end of the
customer production line. Performance across temperature is
ensured with an on-chip voltage reference with very low drift.
A single 3.3V power supply is required, and power consump-
tion is very low at <13mW. To minimize space requirements,
the CS5480 is offered in a low-cost, 4mm x 4mm 24-pin QFN
package.
VDDA
IIN1+
IIN1-
PGA
IIN 2+
IIN 2-
PGA
VIN+
VIN-
10x
VREF+
VREF-
Voltage
Reference
RESET
4th Order
Modulator
Digital
Filter
HPF
Option
4th Order
Modulator
Digital
Filter
HPF
Option
4th Order
Modulator
Digital
Filter
HPF
Option
Temperature
Sensor
System
Clock
Clock
Generator
VDDD
CS5480
UART/SPI
Serial
Interface
SSEL
CS
RX / SDI
TX / SDO
SCLK
Calculation
Energy
To
Pulse
Conversion
DO1
DO2
DO3
MODE
GNDA
XIN XOUT
GNDD
Cirrus Logic, Inc.
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2013
(All Rights Reserved)
MAR’13
DS980F3
1 page  
CS5480
1. OVERVIEW
The CS5480 is a CMOS power measurement integrated circuit that uses three analog-to-digital
converters to measure line voltage, two currents and temperature. It calculates active, reactive, and
apparent power as well as RMS voltage and current and peak voltage and current. It handles other
system-related functions, such as energy pulse generation, voltage sag and swell, overcurrent and
zero-crossing detection, and line frequency measurement.
The CS5480 is optimized to interface to current transformers, shunt resistors, or Rogowski coils for
current measurement and to resistive dividers or voltage transformers for voltage measurement. Two
full-scale ranges are provided on the current inputs to accommodate different types of current sensors.
The CS5480’s three differential inputs have a common-mode input range from analog ground (GNDA) to
the positive analog supply (VDDA).
An on-chip voltage reference (nominally 2.4 volts) is generated and provided at analog output, VREF±.
Three digital outputs (DO1, DO2, and DO3) provide a variety of output signals, and depending on the
mode selected, energy pulses, zero-crossings, or other choices.
The CS5480 includes a UART/SPI™ serial host interface to an external microcontroller. The serial select
(SSEL) pin is used to configure the serial port to be a SPI or UART. SPI signals include serial data input
(SDI), serial data output (SDO), and serial clock (SCLK). UART signals include serial data input (RX) and
serial data output (TX). A chip select (CS) signal allows multiple CS5480s to share the same serial
interface with the microcontroller.
DS980F3
5
5 Page 
CS5480
ANALOG CHARACTERISTICS
• Min / Max characteristics and specifications are guaranteed over all Recommended Operating Conditions.
• Typical characteristics and specifications are measured at nominal supply voltages and TA = 25°C.
• VDDA = +3.3V ±10%; GNDA = GNDD = 0V. All voltages with respect to 0V.
• MCLK = 4.096MHz.
Parameter
Analog Inputs (Current Channels)
Common Mode Rejection
Common Mode+Signal
Differential Full-scale Input Range
[(IIN+) – (IIN-)]
Total Harmonic Distortion
Signal-to-Noise Ratio (SNR)
Crosstalk from Voltage Inputs at Full Scale
Crosstalk from Current Input at Full Scale
Input Capacitance
Effective Input Impedance
Offset Drift (Without the High-pass Filter)
Noise (Referred to Input)
Power Supply Rejection Ratio
(Note 7)
Analog Inputs (Voltage Channels)
Common Mode Rejection
Common Mode+Signal
Differential Full-scale Input Range
Total Harmonic Distortion
Signal-to-Noise Ratio (SNR)
Crosstalk from Current Inputs at Full Scale
Input Capacitance
Effective Input Impedance
Noise (Referred to Input)
Offset Drift (Without the High-pass Filter)
Power Supply Rejection Ratio
(Note 7)
Temperature
Temperature Accuracy
(DC, 50, 60Hz)
(Gain = 10)
(Gain = 50)
(Gain = 50)
(Gain = 10)
(Gain = 50)
(50, 60Hz)
(50, 60Hz)
(Gain = 10)
(Gain = 50)
(60 Hz)
(Gain = 10)
(Gain = 50)
(DC, 50, 60Hz)
[(VIN+) – (VIN-)]
(50, 60Hz)
(60 Hz)
(Gain = 10x)
(Note 6)
Symbol
CMRR
IIN
THD
SNR
IC
EII
OD
NI
PSRR
CMRR
VIN
THD
SNR
IC
EII
NV
OD
PSRR
T
Min
80
- 0.25
-
-
90
-
-
-
-
-
30
-
-
-
60
68
80
-0.25
-
80
-
-
-
2
-
-
60
-
Typ
-
-
250
50
100
80
80
-115
-115
27
-
4.0
15
3.5
65
75
-
-
250
88
73
-115
2.0
-
40
16.0
65
±5
Max
Unit
-
VDDA
-
-
-
-
-
-
-
-
-
-
-
-
dB
V
mVP
mVP
dB
dB
dB
dB
dB
pF
k
µV/ °C
µVRMS
µVRMS
- dB
- dB
-
VDDA
-
-
-
-
-
-
-
-
dB
V
mVP
dB
dB
dB
pF
M
µVRMS
µV/ °C
- dB
- °C
DS980F3
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CS5480.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| CS5480 | Three Channel Energy Measurement IC | Cirrus Logic |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |