2U3838J25QDBVRG4Q1

Overview

The Texas Instruments 2U3838J25QDBVRG4Q1 is a nano-power supervisory circuit designed for automotive and industrial applications. It operates within a supply voltage range of 1.1 V to 5.5 V and features a fixed threshold voltage of 2.5 V. The device provides a single active-low push-pull output with a manual reset input. It includes a programmable reset delay time ranging from 10 ms to 600 ms. The component is qualified under AEC-Q100 standards and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Automotive-grade qualification ensuring reliability in harsh environments
• Ultra-low quiescent current consumption for energy efficiency
• Manual reset capability allowing external control over system state
• Compact SOT-23-5 package suitable for space-constrained designs

Applications

• Microcontroller power-on reset circuits in automotive systems
• Battery backup monitoring in industrial controllers
• Voltage supervision for embedded processors
• Watchdog timer integration in safety-critical applications

Procurement Notes

Verify the exact suffix J25 confirms the 2.5 V threshold voltage, as variations exist within the TPS3838 family. Confirm AEC-Q100 qualification status if automotive compliance is mandatory. Check for end-of-life notices or obsolescence warnings before finalizing procurement plans. Ensure compatibility with existing PCB footprints for SOT-23-5 packages during replacement sourcing.

Selection Notes

Select this component when a fixed 2.5 V threshold is required for precise voltage monitoring. Consider the manual reset feature if external intervention capabilities are necessary. Evaluate the low quiescent current against battery-powered constraints. Compare reset delay options against system startup timing requirements. Verify thermal performance within the specified -40°C to +125°C range for target environments.

Part Context

This part belongs to the TPS383x series of nano-power supervisors from Texas Instruments. These devices are engineered for high reliability in automotive and industrial sectors. The series offers various threshold voltages and reset delays to accommodate diverse design needs while maintaining a small footprint.

Replacement Considerations

Direct substitutes include other TPS3838 variants with matching thresholds and packages. Verify pinout compatibility and electrical specifications before substitution. Consider equivalent parts from other manufacturers only if they meet AEC-Q100 and functional requirements.