INA301A2QDGKRQ1

Current Regulation/Management Overview

The INA301A2QDGKRQ1 is an automotive-grade current-shunt monitor featuring a high-speed overcurrent protection comparator. It operates with a supply voltage range of 2.7 V to 20 V and supports input voltages from 0 V to 36 V. The device provides a voltage output proportional to the shunt current, with a fixed gain of 50 V/V. It includes a built-in comparator for fast fault detection, offering propagation delays as low as 100 ns. The component is qualified under AEC-Q100 standards for automotive applications and functions reliably within a temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Integrates a high-speed comparator for immediate overcurrent event detection
• Supports bidirectional current sensing across a wide common-mode voltage range
• Delivers precise voltage output with fixed gain for simplified signal conditioning

Current Regulation/Management Applications

• Automotive battery management systems
• High-side or low-side current monitoring in electric vehicles
• Overcurrent protection circuits in power distribution units

Current Regulation/Management Procurement Notes

Verify the specific suffix 'RQ1' confirms AEC-Q100 qualification and tape-and-reel packaging format. Ensure the ordering part number matches the required gain configuration and comparator threshold settings. Confirm that the manufacturer's datasheet aligns with the intended automotive reliability requirements before finalizing procurement orders.

Current Regulation/Management Selection Notes

Select this component when a combined current monitoring and fast fault detection solution is required. The fixed 50 V/V gain suits applications needing direct interface with ADCs or microcontrollers without additional amplification. Consider the 36 V input limit and ensure the common-mode voltage stays within specified bounds for accurate operation.

Current Regulation/Management Part Context

This part belongs to the INA301 family of current-shunt monitors designed for robust industrial and automotive environments. It distinguishes itself by integrating a dedicated comparator alongside the precision amplifier, enabling rapid response to fault conditions. The QDGKRQ1 designation indicates an automotive-qualified version housed in an 8-VSSOP package, optimized for space-constrained PCB layouts.

Current Regulation/Management Replacement Considerations

The non-automotive INA301A2IDGKR serves as a functional equivalent but lacks AEC-Q100 certification. Verify that environmental ratings and long-term reliability metrics meet automotive standards if substituting.