Current Sensor ICs

Isolated, Programmable AC and DC Power Monitoring IC

ACS37800

Markets Served

The ACS37800 simplifies power monitoring in AC and DC systems, providing accurate measurements of active, reactive, and apparent power, along with RMS voltage, current, and integrated fault protection.

View Datasheet
Evaluation Board

Product Details

Top Features

  • User-programmable VRMS under/overvoltage pin
  • Dedicated voltage or current zero-crossing pin
  • User-programmable overcurrent fault (OCF) 
  • I2C or SPI communication
  • Programmable averaging on two out of the three outputs: voltage, current or power
Target Application

Part Number Specifications and Availability

View Full Specification Details

ACS37800KMACTR-015B5-SPI

basic_isolation_working_voltage_vrms
1097
reinforced_isolation_working_voltage_vrms
565
isolation_voltage_vrms
5000, 5000
creepage_mm
8
clearance_mm
8
primary_conductor_resistance_mohm
0.85
current_measurement_range_a
±15
bandwidth_khz
1
supply_voltage_v
5
temp_ranges
-40°C to 125°C
package
16-pin SOICW
market
Industrial
features
Programmable AC/DC Power Monitoring

ACS37800KMACTR-030B3-I2C

basic_isolation_working_voltage_vrms
1097
reinforced_isolation_working_voltage_vrms
565
isolation_voltage_vrms
5000, 5000
creepage_mm
8
clearance_mm
8
primary_conductor_resistance_mohm
0.85
current_measurement_range_a
±30
bandwidth_khz
1
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
16-pin SOICW
market
Industrial
features
Programmable AC/DC Power Monitoring

ACS37800KMACTR-030B3-SPI

basic_isolation_working_voltage_vrms
1097
reinforced_isolation_working_voltage_vrms
565
isolation_voltage_vrms
5000, 5000
creepage_mm
8
clearance_mm
8
primary_conductor_resistance_mohm
0.85
current_measurement_range_a
±30
bandwidth_khz
1
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
16-pin SOICW
market
Industrial
features
Programmable AC/DC Power Monitoring

ACS37800KMACTR-090B3-I2C

basic_isolation_working_voltage_vrms
1097
reinforced_isolation_working_voltage_vrms
565
isolation_voltage_vrms
5000, 5000
creepage_mm
8
clearance_mm
8
primary_conductor_resistance_mohm
0.85
current_measurement_range_a
±90
bandwidth_khz
1
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
16-pin SOICW
market
Industrial
features
Programmable AC/DC Power Monitoring

ACS37800KMCTR-030B3-I2C-A

basic_isolation_working_voltage_vrms
1160
reinforced_isolation_working_voltage_vrms
580
isolation_voltage_vrms
-
creepage_mm
8.7
clearance_mm
8.7
primary_conductor_resistance_mohm
0.27
current_measurement_range_a
±30
bandwidth_khz
1
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
16-pin SOICW
market
Automotive
features
Programmable AC/DC Power Monitoring

ACS37800KMCTR-030B3-SPI-A

basic_isolation_working_voltage_vrms
1160
reinforced_isolation_working_voltage_vrms
580
isolation_voltage_vrms
-
creepage_mm
8.7
clearance_mm
8.7
primary_conductor_resistance_mohm
0.27
current_measurement_range_a
±30
bandwidth_khz
1
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
16-pin SOICW
market
Automotive
features
Programmable AC/DC Power Monitoring

ACS37800KMCTR-030B5-I2C-A

basic_isolation_working_voltage_vrms
1160
reinforced_isolation_working_voltage_vrms
580
isolation_voltage_vrms
-
creepage_mm
8.7
clearance_mm
8.7
primary_conductor_resistance_mohm
0.27
current_measurement_range_a
±30
bandwidth_khz
1
supply_voltage_v
5
temp_ranges
-40°C to 125°C
package
16-pin SOICW
market
Automotive
features
Programmable AC/DC Power Monitoring

ACS37800KMCTR-030B5-SPI-A

basic_isolation_working_voltage_vrms
1160
reinforced_isolation_working_voltage_vrms
580
isolation_voltage_vrms
-
creepage_mm
8.7
clearance_mm
8.7
primary_conductor_resistance_mohm
0.27
current_measurement_range_a
±30
bandwidth_khz
1
supply_voltage_v
5
temp_ranges
-40°C to 125°C
package
16-pin SOICW
market
Automotive
features
Programmable AC/DC Power Monitoring

Design Tools

ECAD FILE

ACS37800

ACS37800 ECAD Model Type Image
Programmer

ASEK-2X Programmers
Software

Software Portal
Third Party Tool

Pololu - ACS37800 Isolated Power Monitor Carriers
Third Party Tool

Mikroe - PWR Meter 3 Click – 15A/30A/60A featuring ACS37800KMCTR-030B3-I2C
Third Party Tool

Mikroe - PWR Meter 3 Click - 90A featuring ACS37800KMACTR-090B3-I2C
Third Party Tool

SparkFun Power Meter Board featuring ACS37800KMACTR-030B3-I2C

Technical Documentation

Grounding Techniques for the ACS37800, Allegro's Power Monitoring IC: Ensuring Proper Device Functionality and Measurement Accuracy
Application Note

Grounding Techniques for the ACS37800, Allegro's Power Monitoring IC: Ensuring Proper Device Functionality and Measurement Accuracy

Glossary of Isolation-Related Terms for Integrated Current Sensors
Application Note

Glossary of Isolation-Related Terms for Integrated Current Sensors

Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors
Application Note

Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors

Convenient and Isolated Power Measurements via SPI or I2C using ACS71020 or ACS37800 Power Monitoring ICs
Application Note

Convenient and Isolated Power Measurements via SPI or I2C using ACS71020 or ACS37800 Power Monitoring ICs

I2C Addressing and Fault Monitoring Using The ACS71020 or ACS37800 Power Monitoring IC Digital Input Output Pins
Application Note

I2C Addressing and Fault Monitoring Using The ACS71020 or ACS37800 Power Monitoring IC Digital Input Output Pins

Robust and Efficient UPS Solutions Powered by Allegro
Brochure

Robust and Efficient UPS Solutions Powered by Allegro

Intelligent Power Distribution Solutions for Modern Servers
Brochure

Intelligent Power Distribution Solutions for Modern Servers

Comfort Through Sustainability - Unlock the Power of Heat Pump Innovation
Brochure

Comfort Through Sustainability - Unlock the Power of Heat Pump Innovation

Brochure: Integrated Power Monitoring with the ACS37800
Brochure

Brochure: Integrated Power Monitoring with the ACS37800

Certificate CB US 36315 UL MA Package
Certificate

Certificate CB US 36315 UL MA Package

CB Certificate US-32210-M3-UL
Certificate

CB Certificate US-32210-M3-UL

Certificate of Compliance 20190906-E316429
Certificate

Certificate of Compliance 20190906-E316429

Using the ACS37800 Power Monitoring IC Bare Evaluation Boards with the Allegro Samples Programmer
Guide

Using the ACS37800 Power Monitoring IC Bare Evaluation Boards with the Allegro Samples Programmer

(Showing 4 (of 13