DS1816-5

Supervisors Overview

The DS1816-5 is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated, belonging to the EconoReset series. It features an open-drain active-low reset output with a minimum timeout of 150 ms. The device monitors a single input channel and operates within a supply voltage range up to 5.5 V. Key electrical parameters include a threshold voltage of 4.62 V and an overvoltage threshold of 3.15 V. It draws a typical operating current of 35 uA and supports power-fail detection. The component is available in TO-92-3 through-hole packaging and functions reliably across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides simple reset or power-on-reset functionality for single-channel monitoring
• Features an active-low open-drain output compatible with standard logic interfaces
• Includes power-fail detection capability for comprehensive system supervision

Supervisors Applications

• Microprocessor system reset generation
• Battery-powered equipment power monitoring
• Embedded controller supervision

Supervisors Procurement Notes

Verify the specific suffix and package type when ordering, as the DS1816 family includes various configurations such as TO-92 and SOT packages. Confirm availability status, as some variants may be discontinued or have limited stock. Ensure the selected part matches the required threshold voltage and output configuration for the target application design.

Supervisors Selection Notes

Select this component when a low-cost, single-supply voltage monitor is required for basic system reset functions. Consider the 4.62 V threshold and 150 ms delay against the specific power-up characteristics of the monitored rail. Evaluate the through-hole TO-92 package suitability if surface-mount options are not mandated by the PCB layout constraints.

Supervisors Part Context

This component is part of the DS1816 EconoReset series from Maxim Integrated, now part of Analog Devices. The series focuses on providing essential voltage supervision without complex features like watchdog timers or manual resets. It serves as a fundamental building block for ensuring reliable startup and operation in digital systems requiring stable power rails.

Supervisors Replacement Considerations

Check for direct pin-compatible alternatives within the DS1816 family that offer different threshold voltages or package styles. Verify functional equivalence regarding reset delay and output drive capability before substituting with other supervisory ICs.