2T09I50QDBVRG4Q

Overview

The TPS3809I50QDBVRG4Q is a 3-pin supply voltage supervisor from Texas Instruments, designed for automotive applications. It features an active-low push-pull output and monitors a single input with a threshold voltage of 4.55 V. The device operates within a maximum supply voltage of 6 V and includes a reset delay time of 200 ms. It functions across a temperature range of -40°C to +125°C with an accuracy of 2.2%. The component is housed in an SOT-23-3 package.

Feature Summary

• Provides reliable system reset generation for monitored supply voltages
• Features active-low push-pull output driver for direct interface compatibility
• Designed for automotive environments with extended temperature operation

Applications

• Automotive electronic control units
• Supply voltage monitoring in vehicle systems
• Microcontroller reset circuits in automotive modules

Procurement Notes

Verify the exact part number against the manufacturer's current database to ensure availability and compliance with automotive standards. Confirm that the Q1 designation aligns with specific project requirements for AEC-Q100 qualification. Check for any recent lifecycle status updates or recommended replacements before finalizing procurement plans.

Selection Notes

Select this component when a dedicated voltage supervisor with automotive qualification is required. Ensure the monitored voltage level matches the 4.55 V threshold specification. Consider the SOT-23-3 package size constraints and the active-low output polarity during circuit design integration.

Part Context

This part belongs to the TPS3809-Q1 family of 3-pin supply voltage supervisors. It is specifically engineered for automotive electronics, offering robust performance under harsh conditions. The series provides essential protection by resetting microcontrollers and other sensitive components during undervoltage events.

Replacement Considerations

Check for equivalent parts within the TPS3809-Q1 family with different threshold voltages if the 4.55 V setting is not suitable. Verify pinout compatibility with existing PCB layouts when considering alternative suppliers or updated revisions.