DS1815R-5+T&R

Supervisors Overview

The DS1815R-5+T&R is a voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, belonging to the EconoReset series. It operates within a supply voltage range of 2.0 V to 6.0 V and features a fixed threshold voltage of 3.06 V for monitoring power rails. The device provides a push-pull output capable of sourcing or sinking current, ensuring robust signal integrity in digital systems. It includes a manual reset input for system control and offers a minimum reset timeout of 100 ms to accommodate power-up sequences. Designed for surface-mount applications, it utilizes an SOT-23-3 package and supports operation across commercial and industrial temperature ranges from -40°C to +85°C.

Supervisors Feature Summary

• Integrated manual reset functionality allows external control over system restart states
• Push-pull output stage provides active drive capability for reliable logic interfacing
• Fixed threshold voltage ensures consistent supervision without external resistor networks
• Compact SOT-23-3 packaging enables space-efficient board layout

Supervisors Applications

• Portable battery-powered equipment requiring low standby current
• Embedded microcontroller systems needing stable power-on reset signals
• Industrial control units operating in wide temperature environments
• Communication modules with strict voltage supervision requirements

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to obsolete status. Confirm RoHS compliance documentation matches specific manufacturing lot dates. Validate package marking codes against official datasheet specifications to prevent counterfeit substitution. Request full traceability records for critical infrastructure deployments.

Supervisors Selection Notes

Evaluate threshold voltage compatibility with target power rail stability margins. Assess manual reset pin availability in existing schematic designs. Compare quiescent current consumption against battery life requirements. Ensure thermal performance meets operational environment constraints without additional heatsinking.

Supervisors Part Context

This component belongs to the DS1815 family of simple reset supervisors designed for cost-sensitive applications. It replaces older discrete transistor-based reset circuits with integrated precision comparators. The series emphasizes minimal external component count while maintaining reliable operation across varying supply conditions and temperature extremes.

Supervisors Replacement Considerations

DS1815R-10+T&R offers identical functionality with adjusted threshold voltage. DS1815-5+ provides through-hole TO-92-3 packaging alternative. Cross-reference pinout configurations before physical substitution to ensure compatibility.