2T03-01QDCKRG4Q1

Overview

The Texas Instruments 2T03-01QDCKRG4Q1 is a single-channel voltage detector designed for automotive applications. It monitors a single supply voltage and generates an active-low reset signal when the input falls below a specific threshold. The device operates within a wide supply voltage range, supporting systems from low-voltage microcontrollers to higher-power automotive modules. It features a fixed output delay to ensure stable power-up sequencing. The component is housed in a compact SC-70-5 package, suitable for space-constrained printed circuit board layouts.

Feature Summary

• Monitors a single voltage rail to detect under-voltage conditions
• Generates an active-low reset signal for system protection
• Includes a fixed output delay to prevent false triggering during power transitions

Applications

• Automotive electronic control units (ECUs)
• Power-on reset circuits for microcontrollers
• Battery monitoring systems in vehicles

Procurement Notes

Verify the AEC-Q100 qualification status for automotive reliability requirements. Confirm the specific voltage threshold variant matches the target supply rail. Ensure the SC-70-5 footprint aligns with the design layout. Check for RoHS compliance documentation. Validate the operating temperature range against environmental specifications.

Selection Notes

Select this component when a single-supply monitor with a fixed delay is required. Compare threshold voltages against the minimum operating voltage of the protected circuit. Consider the package size constraints relative to available board space. Evaluate the need for manual reset functionality versus automatic recovery. Assess thermal performance if operating near maximum temperature limits.

Part Context

This part belongs to Texas Instruments' family of supervisory circuits tailored for automotive environments. It complements other voltage detectors by offering a simple, single-channel solution. The Q1 suffix indicates automotive grade qualification. The G4 suffix typically denotes lead-free and RoHS-compliant packaging materials consistent with modern manufacturing standards.

Replacement Considerations

Check for direct pin-compatible alternatives within the same voltage detector family. Verify that substitute parts offer identical threshold voltages and delay times. Ensure replacement components maintain the same automotive qualification level. Confirm package dimensions match the existing PCB footprint without modification.