ACS71020KMABTR-090B3-I2C

Overview

The ACS71020KMABTR-090B3-I2C is a single-phase, isolated power monitoring IC manufactured by Allegro MicroSystems. It operates within a supply voltage range of 2.97 V to 3.63 V and consumes a maximum operating supply current of 30 A. The device functions reliably across an extended temperature range from -40°C to +125°C. It utilizes a high-side sensing architecture and communicates via an I2C interface. The component is housed in a 16-SOIC wide package with dimensions of 0.295 inches (7.50 mm) width. This integrated circuit is designed for precise energy measurement applications.

Feature Summary

• Provides isolated power monitoring capabilities for single-phase systems
• Features high-side current sensing architecture for accurate measurement
• Enables digital communication through an I2C interface
• Supports operation in industrial temperature environments

Applications

• Smart home appliances
• Intelligent lighting systems
• Smart plugs
• Line power monitors
• Motor power monitors

Procurement Notes

Verify the specific suffix codes against official datasheets to ensure correct interface and sensitivity configurations. Confirm that the 16-SOIC package dimensions align with PCB footprint requirements. Check RoHS compliance status and moisture sensitivity levels before integration. Ensure design compatibility with the recommended replacement ACS37800 series if new designs are required.

Selection Notes

Select this component for applications requiring isolated power monitoring with digital output. The I2C interface simplifies system integration compared to analog outputs. Consider the 16-SOIC package size for board space constraints. Verify that the operating voltage range matches the system power supply. Evaluate thermal performance within the specified -40°C to +125°C range for the intended environment.

Part Context

This part belongs to the ACS71020 family of power monitoring ICs from Allegro MicroSystems. These devices are optimized for current measurement ranges from ±15 A to ±90 A, with some variants offering extended detection up to ±180 A. The family targets IoT and smart grid applications, providing a compact solution for energy management in modern electronic systems.

Replacement Considerations

Official documentation recommends using the ACS37800 series for new designs. Verify pinout and register compatibility when migrating from the ACS71020 to the ACS37800. Ensure that the replacement part supports the required I2C communication protocol and meets the same isolation and accuracy specifications.