2U3836E18QDBVRG4Q1

Overview

The TPS3836E18QDBVRG4Q1 is an automotive-grade voltage supervisory circuit manufactured by Texas Instruments. It operates within a supply voltage range up to 6 V and features a threshold voltage of 1.71 V. The device provides a manual reset function with a fixed reset delay time of 200 ms. It utilizes an SOT-23-5 surface-mount package and supports active low, push-pull output configurations. Designed for reliability in harsh environments, it functions across a temperature range starting from -40°C.

Feature Summary

• Manual reset capability for controlled system recovery
• Automotive qualification compliant with AEC-Q100 standards
• Low quiescent current consumption for power efficiency

Applications

• Automotive electronic control units requiring voltage supervision
• Microprocessor reset circuits in vehicle systems
• Battery-powered automotive subsystems

Procurement Notes

This component is officially listed as obsolete and no longer in production. Verification of availability should focus on surplus distributors or secondary markets rather than direct manufacturer channels. Buyers must confirm the authenticity of stock sources due to the end-of-life status. Cross-referencing with equivalent active parts is recommended for new designs to ensure long-term supply stability.

Selection Notes

Engineers selecting this part should note its specific 1.71 V threshold and 200 ms delay characteristics. The push-pull output type distinguishes it from open-drain variants in the same family. Consider the SOT-23-5 footprint constraints during PCB layout. Verify that the manual reset feature aligns with the system's fault handling requirements before finalizing the design.

Part Context

This device belongs to the TPS383x-Q1 series of voltage supervisors designed for automotive applications. It monitors a single input voltage line to detect under-voltage conditions. The 'Q1' suffix indicates compliance with automotive quality standards, while 'E18' specifies the voltage threshold. The 'G4' denotes lead-free and RoHS-compliant packaging materials.

Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly documented in the provided source material. Designers should consult official Texas Instruments documentation for current equivalents or contact authorized distributors for validated replacement options.