DS1830U

Supervisors Overview

The DS1830U+ is a supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, designed for voltage monitoring applications. It operates within a supply voltage range of 1 V to 5.5 V and features three monitored inputs with a threshold voltage of 5 V. The device provides active low, open-drain outputs and includes manual reset functionality via a pushbutton interface. It incorporates power-fail detection capabilities while excluding watchdog timer and battery backup switch features. The component supports a reset delay time of 20 ms and maintains an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Monitors multiple voltage rails simultaneously using three dedicated input channels
• Provides manual reset capability through integrated pushbutton interface logic
• Detects power failure conditions to ensure system integrity during voltage anomalies

Supervisors Applications

• Multi-rail voltage supervision in embedded systems
• Manual reset control interfaces for industrial controllers
• Power-fail detection circuits in safety-critical equipment

Supervisors Procurement Notes

Verify the specific suffix designation when ordering, as it determines package type and tape/reel configuration. Confirm RoHS compliance status directly with the manufacturer or authorized distributors. Check current availability status, as this component may be subject to limited supply or discontinuation notices. Ensure the selected variant matches the required pinout and thermal specifications for your PCB layout.

Supervisors Selection Notes

Select this component when multi-input voltage supervision with manual reset is required. Compare against single-input variants if fewer channels are needed. Consider the open-drain output requirement for pull-up resistor integration. Evaluate the 20 ms reset delay against system timing constraints. Verify that the 5 V threshold aligns with the target supply rail being monitored.

Supervisors Part Context

This part belongs to the DS1830 series of supervisory circuits from Analog Devices/Maxim Integrated. The series focuses on voltage monitoring with manual reset features. Other variants in the family may differ in input count, threshold voltages, or package styles. The U+ suffix typically indicates a specific surface-mount package configuration available from the manufacturer.

Supervisors FAQ

Does the DS1830U include a watchdog timer?

No, the DS1830U does not include a watchdog timer feature.

What is the reset delay time for this device?

The reset delay time is specified as 20 ms.