INA236AIDDFR

Current Regulation/Management Overview

The INA236AIDDFR is a high-precision current, voltage, and power monitor featuring a 16-bit analog-to-digital converter (ADC) and an I²C/SMBus-compatible interface. It operates with a single supply voltage ranging from 1.7V to 5.5V and supports a common-mode bus voltage range of -0.3V to 48V. The device monitors the voltage across an external shunt resistor to report current, bus voltage, and power values. Key electrical specifications include a maximum gain error of 0.1% and a maximum offset voltage of 5µV. It offers configurable averaging options and programmable alert limits for overcurrent, undervoltage, and overvoltage conditions.

Current Regulation/Management Feature Summary

• Supports both high-side and low-side current detection applications
• Provides direct digital reporting of current, voltage, and power via internal multiplication
• Features ultra-precise measurement capabilities with minimal input bias current
• Includes programmable alert thresholds for system protection

Current Regulation/Management Applications

• Battery management systems and cell balancing
• Power delivery and power management units
• Industrial process control and automation
• Portable equipment and battery chargers

Current Regulation/Management Procurement Notes

Verify the specific suffix 'AIDDFR' against the manufacturer's official datasheet to confirm package type and temperature grade. Ensure compatibility with the target I²C address configuration and voltage levels. Cross-reference ordering information directly with Texas Instruments or authorized distributors to avoid counterfeit components. Confirm RoHS compliance status as per the latest revision.

Current Regulation/Management Selection Notes

Select this component when precise monitoring of current, voltage, and power is required in systems operating up to 48V common-mode voltage. The 16-bit resolution and low offset make it suitable for applications demanding high accuracy. Consider the DSBGA-8 package size for space-constrained designs. Evaluate the need for programmable averaging and alert features before finalizing the design.

Current Regulation/Management Part Context

The INA236 belongs to Texas Instruments' family of digital current monitors that integrate an ADC and I²C interface. Unlike traditional current sense amplifiers, it provides direct digital output of calculated power and current values. This integration simplifies system design by reducing the need for external microcontrollers to perform calculations, making it ideal for modern digital power management architectures.

Current Regulation/Management FAQ

Does the INA236 support bidirectional current flow?

Yes, the device can monitor bidirectional current flow by detecting the polarity of the voltage drop across the shunt resistor.

What is the maximum common-mode voltage supported?

The INA236 supports a common-mode bus voltage range from -0.3V to 48V, independent of the supply voltage.