DS1817R-10/T&R

Supervisors Overview

The DS1817R-10/T&R is a voltage monitor supervisor circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 2.3 V to 5.5 V and features an active high, push-pull output. The device monitors a single input with a threshold voltage of 4.35 V and an overvoltage threshold of 4.49 V. It includes a fixed reset delay time of 150 ms and maintains an accuracy of 2.5%. The component functions within a temperature range of -40°C to +85°C, consumes a maximum operating current of 40 µA, and is housed in a SOT-23-3 surface-mount package.

Supervisors Feature Summary

• Provides active high reset signal via push-pull output for direct logic interfacing
• Monitors power supply voltage levels with defined threshold and overvoltage detection points
• Ensures system stability through a fixed 150 ms reset delay period

Supervisors Applications

• Portable battery-powered equipment requiring low quiescent current
• Microprocessor systems needing reliable power-on reset generation
• Automotive electronics operating within specified temperature ranges

Supervisors Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pinout compatibility and electrical characteristics. Ensure the procurement channel provides authentic components from Analog Devices or authorized distributors to guarantee performance reliability and adherence to RoHS standards.

Supervisors Selection Notes

Select this component when an active high output is required for direct connection to digital logic inputs without additional inversion stages. Consider the 40 µA quiescent current for battery life optimization and verify that the 4.35 V threshold aligns with the target system's nominal voltage level.

Supervisors Part Context

This part belongs to the DS1811/DS1817 EconoReset family, designed for cost-sensitive applications requiring basic voltage supervision. Unlike open-drain variants, the push-pull output simplifies board layout by eliminating the need for external pull-up resistors, making it suitable for compact designs.

Supervisors Replacement Considerations

Cross-reference with DS1811R-10+T&R if an open-drain output configuration is acceptable. Verify functional equivalence regarding threshold voltages and reset delays before substituting other supervisory circuits.