DS1815R-20

Supervisors Overview

The DS1815R-20 is a voltage supervisory circuit from the EconoReset series, designed for monitoring single power supply rails. It features a fixed threshold voltage of 3.3V and provides a push-pull active-low reset output. The device includes a manual reset input and a watchdog timer function. It operates within a supply voltage range up to 5.5V and offers a typical reset delay time of 280ms. The component supports manual reset capabilities and is available in SOT-23-5 packaging.

Supervisors Feature Summary

• Integrated watchdog timer functionality for system reliability
• Manual reset input capability for user-initiated control
• Push-pull output configuration for direct logic interfacing

Supervisors Applications

• Microcontroller power supply supervision
• Embedded system reset management
• Industrial control board monitoring

Supervisors Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm package type and marking codes match specifications. Check for obsolescence status as this part may be discontinued. Ensure environmental compliance documentation aligns with project requirements. Validate electrical parameters against current datasheet revisions before integration.

Supervisors Selection Notes

Select this component when a fixed 3.3V threshold is required for single-rail monitoring. Consider the push-pull output if active-high/low signaling flexibility is needed. Evaluate the manual reset feature for systems requiring user intervention. Compare reset delay times against system timing constraints. Assess operating temperature range compatibility with the application environment.

Supervisors Part Context

The DS1815R-20 belongs to Maxim Integrated's EconoReset family, which provides cost-effective voltage supervision solutions. This series typically includes variants with different thresholds and output configurations. The R suffix indicates specific packaging or tape-and-reel options. These components are designed for simple, reliable power monitoring in space-constrained applications.

Supervisors Replacement Considerations

Consult official cross-reference documents for verified substitutes. Verify pin compatibility and threshold voltage matching. Ensure equivalent reset delay and operating temperature ranges. Confirm package dimensions for mechanical fit. Review functional differences such as watchdog or manual reset availability.