DS1233M-55+

Supervisors Overview

The DS1233M-55+T&R is a voltage supervisory circuit from the EconoReset series by Analog Devices / Maxim Integrated. It operates within a supply voltage range of 1.2 V to 5.5 V and features a threshold voltage of 4.625 V with an overvoltage threshold of 4.75 V. The device provides a reset delay time of 350 ms and maintains an accuracy of 2.5%. It consumes a working power supply current of 50 uA and supports an active low, open drain output type. The component is housed in a TO-92-3 package for through-hole mounting and functions across a temperature range of -40 C to +85 C.

Supervisors Feature Summary

• Provides precise power failure detection with internal voltage reference and sensor
• Includes manual reset capability with internal button debounce circuitry
• Maintains reset state during power recovery delays
• Integrates internal pull-up resistor to reduce discrete component requirements

Supervisors Applications

• Microprocessor system power monitoring
• Embedded controller reset control
• Battery-powered device supervision

Supervisors Procurement Notes

Verify the specific suffix T&R indicates reel packaging when sourcing. Confirm RoHS compliance status directly with the manufacturer or authorized distributors as documentation details may vary. Ensure the TO-92-3 through-hole package aligns with your PCB layout requirements before finalizing procurement decisions.

Supervisors Selection Notes

Select this component for applications requiring high accuracy voltage supervision at 5V logic levels. The 2.5% threshold accuracy suits precision systems better than standard variants. Consider the TO-92-3 package if through-hole assembly is mandatory. Verify that the open-drain output configuration matches the downstream logic interface requirements.

Supervisors Part Context

This part belongs to the DS1233M series of EconoReset circuits designed for reliable microprocessor reset generation. It integrates power-fail detection and manual reset functionality into a single compact package. The series is engineered to replace multiple discrete components, simplifying design while ensuring stable operation under varying power conditions.

Supervisors Replacement Considerations

DS1233Z-5+ offers surface mount SOT-223-4 packaging with similar functionality but different accuracy specifications.