TPS3897PDRYT

Supervisors Overview

The TPS3897PDRYT is a single-channel voltage supervisory circuit manufactured by Texas Instruments, housed in a compact 6-SON (1.45x1) surface-mount package. It features an adjustable threshold voltage with a minimum undervoltage detection level of 500 mV and operates within a supply voltage range of 1.7 V to 6.5 V. The device provides a high-active open-drain reset output with a fixed reset delay time of 190 ms. It supports manual reset functionality and lacks integrated watchdog or battery backup switches. The component maintains a quiescent current of 6 uA and ensures threshold accuracy of 1%. It is rated for industrial operating temperatures from -40°C to +125°C.

Supervisors Feature Summary

• Provides precise voltage monitoring with adjustable threshold detection capabilities for flexible system integration.
• Features a high-active open-drain reset output suitable for direct interfacing with various logic families.
• Delivers consistent performance across wide temperature ranges with specified threshold accuracy.

Supervisors Applications

• Monitoring power rails in portable electronic devices requiring low quiescent current.
• Supervising voltage levels in industrial control systems operating under extreme temperature conditions.
• Ensuring system stability in embedded applications through reliable manual reset mechanisms.

Supervisors Procurement Notes

Verify the specific suffix 'Y' corresponds to the tape and reel packaging configuration as defined by Texas Instruments documentation. Confirm that the order quantity aligns with standard manufacturing pack sizes to avoid partial reel handling issues. Ensure compatibility with RoHS3 compliance requirements if mandated by your project specifications. Cross-reference the datasheet revision history to confirm pinout and electrical characteristics remain unchanged for this specific part number variant.

Supervisors Selection Notes

Select the TPS3897PDRYT when an open-drain output topology is required for wired-OR configurations or level shifting between different voltage domains. Choose this component over push-pull variants if the application demands flexibility in pull-up resistor selection. Consider the 190 ms fixed delay for systems where rapid reset assertion is not critical. Evaluate the 6 uA quiescent current against total system power budgets for battery-operated designs.

Supervisors Part Context

This component belongs to the TPS389x series of ultra-small voltage supervisors from Texas Instruments. The series includes variants with different output polarities and types, such as the TPS3895 with push-pull output and TPS3896 with active-low push-pull output. All members share similar physical dimensions and core monitoring functionalities but differ in output stage design and signal polarity to suit diverse interface requirements.

Supervisors Replacement Considerations

The TPS3897ADRYT is listed as a parameter-equivalent substitute. Verify that the alternative part matches the open-drain output type and high-active reset polarity. Ensure the replacement maintains the same 6-SON package footprint and thermal characteristics for seamless board re-use.