DS1817R-20/T&R

Supervisors Overview

The DS1817R-20 is a supervisory switch circuit manufactured by Analog Devices Inc. (Maxim Integrated). It provides a reset signal when the supply voltage drops below a specific threshold, ensuring system reliability. The device features a fixed output delay of 200 ms to prevent false resets during power-up transients. It operates with a supply voltage range from 1.5 V to 6.0 V and offers low quiescent current consumption. The component is available in an 8-pin SOIC package and is designed for use in embedded systems requiring precise voltage monitoring.

Supervisors Feature Summary

• Provides reliable system reset upon undervoltage conditions
• Includes fixed output delay to ignore transient power-up events
• Operates over a wide supply voltage range suitable for various logic families
• Features low power consumption for battery-operated applications

Supervisors Applications

• Microcontroller reset circuits
• Battery-powered embedded systems
• Portable electronic devices
• Industrial control systems

Supervisors Procurement Notes

Verify the exact suffix 'T&R' indicates tape and reel packaging configuration. Confirm the '20' designation corresponds to the 200 ms delay time as per the official datasheet. Ensure compatibility with your system's voltage levels and package requirements before ordering.

Supervisors Selection Notes

Select this component when a fixed delay reset is required without adjustable thresholds. Consider the 8-pin SOIC package size for PCB layout constraints. Evaluate the operating voltage range against your system's nominal supply to ensure proper functionality under all expected conditions.

Supervisors Part Context

This part belongs to the Maxim Integrated DS1817 series of supervisory switches. These components are widely used in digital systems to monitor power rails. The DS1817 family offers various delay times and voltage thresholds to suit different application needs.

Supervisors Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio that offer similar delay characteristics. Verify if other series members provide adjustable thresholds if future flexibility is needed.