2U3823-33QDBVRG4Q1

Overview

The TPS3823-33QDBVRG4Q1 is an automotive-grade voltage supervisor circuit designed for reliable system monitoring. It features a fixed threshold voltage of 2.93V and operates within a supply voltage range of 1.1V to 5.5V. The device provides a push-pull, active-low reset output with a typical reset delay time of 200 ms. It includes manual reset functionality and is housed in a compact SOT-23-5 package. The component supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Integrated watchdog timer for fault detection
• Manual reset input capability for user control
• Push-pull output driver for robust signal integrity

Applications

• Automotive electronic control units (ECUs)
• Infotainment system power monitoring
• Body control module supervision
• ADAS sensor power rails

Procurement Notes

Verify the complete part number including suffixes such as G4 and Q1 to ensure correct packaging and automotive grade. Confirm that the specific revision matches design requirements. Check availability status as automotive components may have limited stock or longer lead times. Ensure ESD handling procedures are followed during installation.

Selection Notes

Select this component when a fixed 2.93V threshold is required for 3.3V systems. The integrated watchdog timer simplifies design compared to separate supervisor and watchdog ICs. The SOT-23-5 package offers space efficiency for dense PCB layouts. Verify compatibility with the system's maximum supply voltage of 5.5V.

Part Context

This part belongs to the TPS382x-Q1 family of voltage supervisors from Texas Instruments. These devices are specifically engineered for automotive applications requiring high reliability. The family shares common features like watchdog timers and manual reset inputs, differentiated by threshold voltages and package options.

Replacement Considerations

Direct substitutes include other TPS382x-Q1 variants with different threshold voltages if the 2.93V level is adjustable. Cross-reference with similar automotive supervisors from other manufacturers ensuring identical pinout and electrical characteristics.