DS1816-20+

Supervisors Overview

The DS1816-20+ is a single-channel voltage supervisor integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 3V to 5.5V and features a fixed threshold voltage of 3.3V for monitoring power rails. The device provides an active-low reset output with open-drain or open-collector configuration, ensuring compatibility with various logic families. Designed for surface-mount applications, it utilizes the SOT-23-3 package (TO-236-3). The component supports a minimum reset timeout of 100ms and functions reliably across an industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides simple reset and power-on-reset functionality for monitored voltage channels
• Features an active-low output signal with configurable open-drain or open-collector topology
• Includes a guaranteed minimum reset timeout period to ensure stable system initialization

Supervisors Applications

• Embedded systems requiring reliable power supervision
• Microcontroller-based designs needing power-on reset generation
• Industrial control units operating in varying thermal environments

Supervisors Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pinout and electrical characteristics. Ensure the selected variant matches the required package type and operating temperature range for your application. Cross-reference the part number with current distributor catalogs to confirm availability status, as lead times may vary based on manufacturing schedules.

Supervisors Selection Notes

Select this component when a dedicated voltage supervisor is required for a single rail with a standard 3.3V threshold. Consider the SOT-23-3 footprint constraints during PCB layout. Evaluate whether the fixed threshold meets the system's brown-out detection requirements compared to adjustable alternatives.

Supervisors Part Context

This device belongs to the EconoReset series, designed for cost-sensitive applications requiring basic power management supervision. It complements other Maxim Integrated analog and mixed-signal products used in consumer electronics and industrial instrumentation.

Supervisors Replacement Considerations

Check for direct replacements within the DS1816 family or compatible supervisors from other manufacturers offering identical thresholds and package dimensions.