DS1814AR-5/T&R

Supervisors Overview

The DS1814AR-5/T&R is a supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, designed as a micro-monitor for power management applications. It operates within a supply voltage range of 3.3 V to 5 V and features a threshold voltage of 4.625 V. The device provides a reset timeout period of 140 ms with a push-pull output active at a low level. Packaged in an SOT-23-5 surface-mount format, it serves as a single-channel supervisor IC suitable for embedded systems requiring reliable voltage monitoring.

Supervisors Feature Summary

• Provides hardware-based system reset functionality upon detection of undervoltage conditions
• Features a fixed internal threshold voltage for precise monitoring without external components
• Includes a defined reset timeout delay to ensure stable power-up sequences

Supervisors Applications

• Embedded controller power supervision
• Microprocessor reset circuits
• Portable electronic device power management

Supervisors Procurement Notes

Verify the specific suffix designation against the manufacturer's current documentation to confirm pinout compatibility and electrical specifications. Ensure the component source is authorized to mitigate counterfeit risks. Confirm that the tape-and-reel packaging aligns with automated assembly requirements. Cross-reference the lot code with quality assurance records if historical performance data is required for critical deployments.

Supervisors Selection Notes

Select this component when a fixed threshold supervisor is required for 5 V or 3.3 V logic systems. The integrated 140 ms timeout simplifies design by eliminating external timing capacitors. Consider the SOT-23-5 package constraints for space-limited PCB layouts. Verify that the push-pull output drive capability meets the input requirements of the downstream reset pin.

Supervisors Part Context

This part belongs to the DS1814 series of micro-monitors, which are specialized supervisory circuits within the Maxim Integrated portfolio. These devices are engineered to monitor power rails in digital systems, ensuring that processors and memory components receive stable voltage levels during operation and startup phases.

Supervisors Replacement Considerations

Consult official substitution guides for compatible supervisors with matching threshold voltages and package footprints. Verify functional equivalence regarding reset polarity and timeout characteristics before integrating alternative sources.