INA740BIREMR

Current Regulation/Management Overview

The INA740BIREMR is a digital power monitor manufactured by Texas Instruments, designed for high-voltage current and power monitoring applications. It features an 85 V common-mode voltage range and integrates a 16-bit analog-to-digital converter (ADC) to provide precise digital output data. The device operates within a supply voltage range of 2.7 V to 5.5 V and consumes a typical operating supply current of 2.8 µA. It offers an accuracy of 1.6% and functions reliably across a temperature range from -40°C to +125°C. Packaged in a VQFN-14 surface-mount format, it supports both high-side and low-side sensing configurations.

Current Regulation/Management Feature Summary

• Integrates a 16-bit ADC for high-resolution digital conversion of current and power parameters
• Supports both high-side and low-side current sensing configurations
• Provides direct digital output interface compatible with standard communication protocols

Current Regulation/Management Applications

• High-voltage battery management systems
• Industrial motor control and drive circuits
• Power supply current monitoring and protection

Current Regulation/Management Procurement Notes

Verify the specific suffix 'REMR' corresponds to the required tape-and-reel packaging configuration when placing orders. Confirm that the 16-bit digital output interface matches the host controller's communication requirements. Ensure the system design accommodates the 85 V common-mode voltage limit and the specified operating temperature range for reliable performance in the target environment.

Current Regulation/Management Selection Notes

Select this component when high accuracy and digital integration are prioritized over analog outputs. The 1.6% accuracy specification suits applications requiring precise energy metering or fault detection. Consider the VQFN-14 package size for space-constrained designs. Evaluate the 2.8 µA quiescent current against system power budget constraints, particularly for battery-operated equipment where low standby consumption is critical.

Current Regulation/Management Part Context

The INA740 belongs to Texas Instruments' family of digital power monitors, which combine precision amplification with on-chip ADCs. Unlike traditional analog current sense amplifiers, this series provides direct digital data, simplifying system architecture by eliminating external ADCs. It is positioned for applications demanding high common-mode rejection and robust performance in electric vehicle and industrial automation sectors.

Current Regulation/Management Replacement Considerations

Public confirmed substitute part numbers: None identified.