DS1233D-5+

Supervisors Overview

The DS1233D-5+ is a voltage supervisory circuit from the EconoReset series, designed for monitoring 5V microprocessor power supplies. It features a precision temperature-compensated reference and comparator to detect out-of-tolerance conditions. The device generates an internal power-fail signal and maintains reset for approximately 350 ms after VCC returns to tolerance. It operates within a supply voltage range up to 5.5 V, with a threshold accuracy of 5%. The component supports through-hole installation in a TO-92-3 package and functions across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Automatically restarts microprocessors following power failure events
• Maintains reset state for 350 ms to ensure system stabilization
• Provides accurate monitoring of 5V power supply rails
• Integrates internal pull-up resistor to reduce discrete component count

Supervisors Applications

• Monitoring Motorola 68XXX series microprocessor power supplies
• Supervising HC16 microprocessor systems
• General-purpose 5V logic circuit power supervision

Supervisors Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm pinout compatibility and electrical tolerances. Ensure the procurement channel provides valid RoHS compliance certificates. Confirm that the through-hole TO-92-3 package variant matches the target PCB footprint requirements before finalizing orders.

Supervisors Selection Notes

Select this component when precise 5V monitoring with 5% accuracy is required for legacy or standard microprocessor architectures. The integrated power-fail detection and fixed delay simplify design compared to discrete solutions. Consider the TO-92-3 package constraints for board space and thermal management in the target application environment.

Supervisors Part Context

This part belongs to the DS1233 family of low-cost supervisory circuits originally developed by Dallas Semiconductor and now manufactured by Analog Devices. The EconoReset line focuses on providing essential reset functionality without complex features like watchdog timers or manual resets, targeting cost-sensitive embedded applications.

Supervisors Replacement Considerations

Direct replacements include other variants within the DS1233 series such as DS1233D-10+ or DS1233D-15+, which offer different threshold accuracies. Cross-reference with Maxim Integrated datasheets to verify functional equivalence regarding output type and package dimensions.