INA238AIDGSR

Power Supply Controllers, Monitors Overview

The INA238AIDGSR is a high-precision current, voltage, and power monitor featuring an I2C digital output. It operates with a common-mode voltage range of -300 mV to 85 V and provides 16-bit resolution. The device includes programmable alert thresholds and functions within a supply voltage range of 2.7 V to 5.5 V. It supports operation temperatures from -40°C to +125°C and is housed in a 10-pin VSSOP package.

Power Supply Controllers, Monitors Feature Summary

• Provides simultaneous measurement of bus voltage, shunt voltage, and calculated power via I2C interface
• Features high common-mode voltage tolerance up to 85 V for flexible system integration
• Includes programmable alert pins for monitoring over-voltage, under-voltage, and power limit conditions

Power Supply Controllers, Monitors Applications

• Industrial process control systems requiring precise power monitoring
• Battery management systems in portable and stationary applications
• Over-current protection circuits in server and telecom infrastructure

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'DGSR' confirms the VSSOP-10 package and tape-and-reel packaging configuration. Ensure compatibility with I2C bus protocols used in the target design. Confirm that the 85 V common-mode rating aligns with the maximum bus voltage present in the application circuit to prevent device damage.

Power Supply Controllers, Monitors Selection Notes

Select this component when high accuracy and digital output are required without external ADCs. The integrated power calculation reduces processing load on the host microcontroller. Consider the 16-bit resolution for applications demanding fine-grained monitoring capabilities. Verify that the I2C address settings meet the system's addressing requirements.

Power Supply Controllers, Monitors Part Context

This part belongs to the INA23x family of precision power monitors from Texas Instruments. It shares functional similarities with the INA237 but adds specific alert capabilities and power monitoring features. The device is designed to replace discrete solutions involving amplifiers and ADCs, simplifying board layout and reducing component count.

Power Supply Controllers, Monitors Replacement Considerations

The INA237AIDGSR is a related variant within the same family. Verify if the additional alert features of the INA238 are necessary or if the simpler INA237 suffices. Check pinout compatibility between variants to ensure direct replacement feasibility without schematic changes.