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PDF MAX78630+PPM Data sheet ( Hoja de datos )
| Número de pieza | MAX78630+PPM | |
| Descripción | Energy Measurement Processor | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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MAX78630+PPM
Energy Measurement Processor
for Polyphase Monitoring Systems
DATA SHEET
GENERAL DESCRIPTION
The MAX78630+PPM is an energy measurement processor
(EMP) for polyphase power monitoring systems. It is
designed for real-time monitoring for a variety of typical
three-phase configurations in industrial applications. It is
available in a 32-pin TQFN package.
The MAX78630+PPM provides up to six analog inputs for
interfacing to voltage and current sensors. Scaled voltages
from the sensors are fed to the single converter front-end
utilizing a high-resolution delta-sigma converter. Supported
current sensors include current transformers (CT),
Rogowski coils, and resistive shunts.
An embedded 24-bit measurement processor and firmware
perform all necessary computations and data formatting for
accurate reporting to the host. With integrated flash
memory for storing nonvolatile calibration coefficients and
device configuration settings, the MAX78630+PPM is
capable of being a completely autonomous solution.
The MAX78630+PPM is designed to interface to the host
processor via the UART interface. Alternatively, SPI or I2C
may also be used.
BENEFITS AND FEATURES
• Six Configurable Analog Inputs for Monitoring
a Variety of Delta- and Wye-Connected
Three-phase Topologies
• Supports Current Transformers (CT),
Resistive Shunts, and Rogowski Coils
• Delta-Sigma ADC with Precision Voltage
Reference and On-Chip Temperature Sensor
• Internal or External Oscillator Timing
Reference
• SPI, I2C, or UART Interface Options with
Configurable I/O pins for alarm Signaling,
Address Pins, or User Control
• 24-Bit Measurement Processor with
Integrated Firmware and Flash Memory for
Nonvolatile Storage of Calibration and
Configuration Parameters
• Supports Extraction of Individual Harmonics
• Small 32-TQFN Package and Reduced Bill of
Materials
Voltage
Sensors
Current
Sensors
Single Converter
Front End
Measurement
Processor
MUX ADC
RAM
UART
SPI
Digital
I/O
Host
Controller
FLASH
MAX78630+PPM
I2C
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-6679; Rev 3; 8/14
1 page  
MAX78630+PPM Data Sheet
Performance Specifications
Note that production tests are performed at room temperature.
Input Logic Levels
PARAMETER
Digital High-Level Input Voltage (VIH)
Digital Low-Level Input Voltage (VIL)
CONDITIONS
MIN TYP MAX UNITS
2V
0.8 V
Output Logic Levels
PARAMETER
Digital High-Level Output Voltage
(VOH)
Digital Low-Level Output Voltage
(VOL)
Supply Current
PARAMETER
V3P3D and V3P3A Current
(Compounded)
CONDITIONS
ILOAD = 1mA
ILOAD = 10mA
ILOAD = 1mA
ILOAD = 10mA
MIN
V3P3 -
0.4
V3P3 -
0.6
0
TYP
MAX
0.4
0.5
UNITS
V
V
V
V
CONDITIONS
Normal operation, V3P3 =
3.3V
MIN
TYP MAX UNITS
8.1 10.3 mA
Crystal Oscillator
PARAMETER
XIN to XOUT Capacitance
Capacitance to GNDD (Note 1)
CONDITIONS
(Note 1)
XIN
XOUT
Note 1: Guaranteed by design; not subject to test.
MIN TYP MAX UNITS
3 pF
5 pF
5
Internal RC Oscillator
PARAMETER
Nominal Frequency
Accuracy
CONDITIONS
V3P3 = 3.0V, 3.6V;
temperature = -40°C to
+85°C
MIN TYP MAX UNITS
20.000
MHz
±1.5 ±1.75
%
Rev 3
5
5 Page 
MAX78630+PPM Data Sheet
Package Information
For the latest package outline information and land patterns (footprints), go to
www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS
status only. Package drawings may show a different suffix character, but the drawing pertains to the
package regardless of RoHS status.
PACKAGE TYPE
32 TQFN
PACKAGE CODE
T3255+4
OUTLINE NO.
21-0140
LAND PATTERN NO.
90-0012
Rev 3
11
11 Page | ||
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