DS1233AZ-15+

Supervisors Overview

The DS1233AZ-15+ is a voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, belonging to the EconoReset series. It features a single monitored input with an active low output available in both open drain and push-pull configurations. The device operates within a supply voltage range up to 5.5 V and includes power-fail detection capabilities. Key electrical parameters include a threshold voltage of 4.125 V, an overvoltage threshold of 4.24 V, and a reset delay time of 350 ms. The accuracy is specified at 15%, with a typical operating supply current of 50 uA. It supports surface mount installation in an SOT-223-4 package and functions across a temperature range from -40 C to +85 C.

Supervisors Feature Summary

• Provides automatic system reset upon power-up or undervoltage conditions
• Detects power failures to ensure data integrity during voltage drops
• Offers flexible output drive options for diverse logic compatibility

Supervisors Applications

• Embedded systems requiring reliable power supervision
• Microcontroller-based designs needing brownout protection
• Industrial control units operating in variable voltage environments

Supervisors Procurement Notes

Verify the specific suffix 'AZ' against official Analog Devices documentation to confirm package type and tolerance specifications. Ensure the component matches the required threshold voltage and output configuration for the target application. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity before procurement.

Supervisors Selection Notes

Select this component when a single-channel voltage supervisor with moderate accuracy is sufficient. Consider the 350 ms reset delay and 50 uA quiescent current for power-sensitive designs. Evaluate the SOT-223-4 footprint constraints and the active low output polarity against the microcontroller reset pin requirements.

Supervisors Part Context

This component is part of the DS1233 family of simple reset circuits designed for cost-effective power management. It serves as a fundamental building block for ensuring stable operation in digital systems by monitoring supply rails. The EconoReset series emphasizes low cost and minimal external component requirements while providing essential reset functionality.

Supervisors FAQ

Does the DS1233AZ-15+ include a manual reset button?

No, the DS1233AZ-15+ does not feature a manual reset input; it relies solely on automatic power-on and undervoltage detection.

What is the reset delay time for this supervisory circuit?

The reset delay time is 350 ms, allowing sufficient time for the supply voltage to stabilize before asserting the reset signal.