DRV5021A2EDBZRQ1

Overview

The DRV5021A2EDBZRQ1 is an automotive-grade, low-voltage, unipolar digital-switch Hall effect sensor manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 5.5 V and features an open-drain output capable of sourcing up to 20 mA. The device is designed for board mounting in a SOT-23-3 package. It functions as a magnetic switch with specific operational thresholds, including a minimum operating point of 1.1 mT and a maximum release point of 3.3 mT. The sensor supports a wide operating temperature range from -40°C to +150°C and is qualified under AEC-Q100 standards for automotive applications.

Feature Summary

• Unipolar digital-switch operation detects single magnetic pole activation
• Open-drain output interface compatible with standard logic levels
• Temperature compensated performance across extended industrial ranges
• Automotive qualification ensuring reliability in harsh environments

Applications

• Automotive door latch detection systems
• Ignition switch position sensing
• Seat belt buckle status monitoring
• General automotive proximity sensing

Procurement Notes

Verify the complete part number against official Texas Instruments documentation to ensure correct suffix alignment. Confirm that the A2 variant matches the required magnetic threshold specifications for your design. Check for any recent Product Change Notifications regarding packaging or assembly updates. Ensure compatibility with your system's voltage domain and thermal requirements before finalizing procurement.

Selection Notes

Select this component when a unipolar response is required for simple on/off magnetic detection. The open-drain output allows flexible interfacing with various microcontrollers. Consider the SOT-23-3 package size for space-constrained PCB layouts. Verify that the specified operating current and voltage ranges align with the target application's power budget and signal integrity needs.

Part Context

This device belongs to the DRV5021 family of Hall effect sensors designed for automotive use. It provides a robust solution for detecting magnetic fields in vehicle systems. The series offers various variants with different magnetic thresholds to suit diverse sensing distances and environmental conditions. Integration into automotive electronics requires adherence to strict quality and reliability standards met by this component.

Replacement Considerations

Consult official substitution guides for equivalent parts within the DRV5021 family or compatible Hall effect sensors. Ensure any replacement maintains the same unipolar functionality and open-drain output configuration. Verify that alternative components meet the same AEC-Q100 automotive qualification and package dimensions.