INA284AIDGKR

Current Regulation/Management Overview

The INA284AIDGKR is a bidirectional current shunt monitor manufactured by Texas Instruments, designed for high-precision current sensing in power management systems. It supports a wide common-mode voltage range from -14 V to +80 V, enabling operation in both high-side and low-side configurations. The device features a fixed gain of 20 V/V with an accuracy of ±1.4% over the specified temperature range. Operating on a single supply voltage between 2.7 V and 18 V, it draws a typical quiescent current of 600 µA. Housed in an 8-pin VSSOP package, it operates within a junction temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Bidirectional current sensing capability allows measurement of current flow in both directions across the shunt resistor.
• Wide common-mode voltage range supports integration into high-voltage systems without requiring level shifting.
• Fixed 20 V/V gain simplifies circuit design by eliminating external resistor calibration requirements.
• High accuracy specification ensures reliable monitoring performance across the full industrial temperature range.

Current Regulation/Management Applications

• Battery management systems in electric vehicles and portable electronics
• Industrial motor control and drive protection circuits
• Power supply overcurrent detection and load monitoring
• Solar inverter input current sensing

Current Regulation/Management Procurement Notes

Verify the specific suffix 'R' indicates reel packaging when ordering. Confirm that the 'A' grade meets the required ±1.4% accuracy threshold for your application. Ensure the 8-VSSOP package footprint matches your PCB layout constraints. Check for RoHS compliance status if environmental regulations apply to your manufacturing process.

Current Regulation/Management Selection Notes

Select this component when bidirectional current monitoring is required within a -14 V to +80 V common-mode window. The fixed 20 V/V gain suits applications where signal conditioning amplification is not preferred. Consider the 600 µA quiescent current for battery-powered designs. Validate that the ±1.4% accuracy aligns with system tolerance requirements before finalizing the bill of materials.

Current Regulation/Management Part Context

The INA284 belongs to Texas Instruments' family of precision current shunt monitors. It complements other devices like the INA280 and INA284AQDGKRQ1, offering standard commercial-grade performance. The device integrates internal precision resistors to set the gain, distinguishing it from programmable gain amplifiers. It serves as a direct interface between current shunts and ADCs or microcontrollers in power monitoring architectures.

Current Regulation/Management Replacement Considerations

The INA284AIDGKT is a tape-and-reel alternative with identical electrical specifications but different packaging format. For automotive applications, the INA284AQDGKRQ1 offers AEC-Q100 qualification. Verify pinout compatibility and thermal characteristics when substituting with other current sense amplifiers from the same manufacturer.