2U3824-33QDBVRG4Q1

Overview

The TPS3824-33QDBVRG4Q1 is an automotive-grade supply voltage supervisor featuring a watchdog timer. It operates within a supply voltage range of 1.1 V to 5.5 V and monitors input voltages up to 3 V. The device utilizes a SOT-23-5 package with surface-mount installation. Key electrical parameters include a threshold voltage of 2.93 V, an overvoltage threshold of 3 V, and a reset delay time of 200 ms. It exhibits a quiescent current of 15 uA and maintains accuracy within 2.4%. The component supports active high and active low push-pull outputs without manual reset functionality.

Feature Summary

• Integrated watchdog timer for system reliability monitoring
• Automotive qualification compliant with AEC-Q100 standards
• Ultra-low quiescent current consumption for power efficiency
• Push-pull output driver supporting multiple logic configurations

Applications

• Automotive electronic control units (ECUs)
• Vehicle infotainment systems
• Body control modules
• Telematics units

Procurement Notes

Verify the specific suffix 'Q1' confirms automotive grade status against official Texas Instruments documentation. Confirm the '2U' prefix designation matches your procurement requirements. Ensure the SOT-23-5 package variant aligns with your PCB footprint specifications. Cross-reference the exact part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when automotive environmental durability and watchdog functionality are required. The 2.93 V threshold suits applications monitoring 3.3 V or similar rail voltages. Consider the 15 uA quiescent current for battery-backed systems. Verify that the 200 ms reset delay meets the timing constraints of the target microcontroller or processor.

Part Context

This part belongs to the TPS382x-Q1 family of voltage supervisors designed for automotive environments. It shares architectural similarities with other members in the series but differs in specific threshold voltages and package options. The Q1 designation indicates compliance with automotive quality standards, distinguishing it from commercial grade counterparts.

Replacement Considerations

Direct substitutes within the same family include TPS3823-33QDBVRG4Q1 and TPS3825-33QDBVRG4Q1. Verify pin compatibility and threshold voltage alignment before substitution. Consult the official datasheet for detailed replacement guidelines.