DS1233DZ-5/T&R

Supervisors Overview

The DS1233DZ-5/T&R is a voltage supervisory circuit from the EconoReset series by Analog Devices Inc./Maxim Integrated. It monitors a single input with a threshold voltage of 4.625 V and an overvoltage threshold of 4.75 V. The device operates within a supply voltage range up to 5.5 V, drawing a typical operating current of 50 uA. It features a reset delay time of 350 ms and maintains accuracy within 5%. Designed for surface mount applications, it utilizes an SOT-223-4 package and functions across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides automatic microprocessor restart following power failure events
• Maintains active low reset signal for a fixed duration after voltage recovery
• Detects power failures without requiring manual reset or external components

Supervisors Applications

• Microprocessor system supervision
• Power fail detection in embedded controllers
• Voltage monitoring in portable electronic devices

Supervisors Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing board layouts regarding the SOT-223 footprint. Cross-reference thermal performance requirements with the datasheet limits. Confirm RoHS compliance status through certified supplier declarations prior to integration into final assemblies.

Supervisors Selection Notes

Select this component when a simple, low-current supervisor is required for 5V logic systems. The fixed 350 ms delay suits applications tolerant of startup latency. Verify that the open-drain/push-pull output configuration matches the target microcontroller reset pin requirements. Consider the SOT-223 package constraints for thermal dissipation and physical space availability on the PCB.

Supervisors Part Context

This part belongs to the DS1233 family of EconoReset supervisors, designed for cost-sensitive applications. It simplifies system design by integrating power-fail detection and reset generation into a single small package. The series supports various voltage thresholds to accommodate different logic families and supply rails commonly found in industrial and consumer electronics.

Supervisors Replacement Considerations

DS1233DZ-5+ serves as a tube-packaged equivalent with identical electrical characteristics. DS1233-5+T&R offers the same functionality in a TO-92-3 through-hole package. Verify pinout compatibility before substituting between package types.