INA301A1QDGKRQ1

Current Regulation/Management Overview

The INA301A1QDGKRQ1 is a high-accuracy, bidirectional current-sense amplifier designed for automotive applications. It features a fixed gain of 10 V/V and supports a common-mode voltage range from -4 V to 110 V. The device operates on a single supply voltage between 2.7 V and 20 V, with a typical quiescent current of 2.5 mA. Key electrical specifications include a maximum input offset voltage of 25 µV, an input bias current of 45 µA, and a gain error of 0.02%. It offers a common-mode rejection ratio (CMRR) of 120 dB and a bandwidth of 1.1 MHz. The component is housed in an 8-VSSOP package and is qualified under AEC-Q100 standards for operation across a temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Bidirectional current sensing capability supporting both positive and negative current flow detection
• High common-mode voltage tolerance up to 110 V for flexible high-side or low-side placement
• Precision performance with low input offset voltage and minimal gain error for accurate measurement
• Automotive qualification compliant with AEC-Q100 standards for reliability in harsh environments

Current Regulation/Management Applications

• Battery management systems in electric and hybrid vehicles
• Motor control and drive circuits
• Charging station infrastructure monitoring
• General automotive power distribution units

Current Regulation/Management Procurement Notes

Verify the specific suffix 'Q1' confirms automotive grade qualification and AEC-Q100 compliance before procurement. Ensure the 'A1' designation matches the required 10 V/V gain configuration for your circuit design. Confirm the 'DGKR' package variant aligns with your PCB footprint requirements. Cross-reference the manufacturer datasheet for latest revision history and environmental compliance status such as RoHS3. Validate that the operating temperature range meets your specific application constraints.

Current Regulation/Management Selection Notes

Select this component when bidirectional current monitoring is required in high-voltage automotive environments. The fixed 10 V/V gain simplifies signal conditioning for downstream ADCs. Consider the 110 V common-mode range for compatibility with various bus voltages. Evaluate the 2.5 mA quiescent current against system power budget constraints. Ensure the 8-VSSOP package fits within available board space limitations.

Current Regulation/Management Part Context

This part belongs to the INA301 family of current-sense amplifiers from Texas Instruments. It is specifically engineered for automotive electronics, distinguished by its robust common-mode voltage handling and precision accuracy. The Q1 suffix indicates it meets automotive quality standards, differentiating it from standard industrial variants. It complements other INA series devices offering different gains or unidirectional capabilities.

Current Regulation/Management Replacement Considerations

INA301A1IDGKT