TPS389018DSER

Supervisors Overview

The TPS389018DSER is a precision voltage supervisor from Texas Instruments, designed for monitoring single power rails. It features a fixed reset threshold of 1.8V with 1% accuracy. The device operates within a supply voltage range of 2.5V to 5.5V and draws low quiescent current. It provides an open-drain active-low reset output and includes a manual reset input. The component is housed in a compact 6-WSON (1.5x1.5mm) package and supports operation across an extended temperature range of -40°C to +125°C.

Supervisors Feature Summary

• Delivers high-precision voltage supervision with 1% threshold accuracy for reliable system monitoring.
• Integrates a manual reset input allowing external control over the reset state generation.
• Features an open-drain reset output compatible with various logic families for flexible interface design.

Supervisors Applications

• Monitoring critical power rails in embedded computing systems
• Supervising voltage levels in industrial control equipment
• Ensuring stable operation in automotive electronic modules

Supervisors Procurement Notes

Verify the specific suffix DSER corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the 1.8V threshold aligns precisely with the target rail voltage to ensure correct reset assertion timing. Check for any regional compliance requirements such as RoHS or REACH status relevant to the manufacturing origin. Ensure the 6-WSON footprint matches the PCB layout specifications to avoid mechanical interference.

Supervisors Selection Notes

Select this component when a single-channel supervisor with tight accuracy is required for low-voltage applications. The 1.8V threshold suits systems operating near standard logic levels. Consider the manual reset feature if external hardware intervention is needed during fault conditions. Evaluate the low quiescent current benefit for battery-powered designs where standby power consumption is critical. Compare against other thresholds in the TPS3890 family if the system voltage differs significantly from 1.8V.

Supervisors Part Context

This part belongs to the TPS3890 series of precision voltage supervisors, which are engineered for high reliability in demanding environments. The series offers various threshold options to accommodate different system voltages while maintaining consistent performance characteristics. The TPS389018DSER specifically targets applications requiring precise monitoring of 1.8V rails with minimal static power draw.

Supervisors Replacement Considerations

TPS389018DSET serves as a direct alternative offering identical electrical specifications but in a cut-tape package format suitable for prototyping or manual placement.