DS1231S-50

Supervisors Overview

The DS1231S-50 is a single-channel power supply supervisor integrated circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors system voltage levels and generates a reset signal when the supply drops below a specified threshold. The device features an open-drain or open-collector output compatible with various logic families. Designed for reliable operation in embedded systems, it ensures proper microcontroller initialization and recovery from power failures.

Supervisors Feature Summary

• Monitors a single power supply rail for under-voltage conditions
• Generates active-low reset signal upon fault detection
• Open-drain output configuration allows flexible logic interfacing
• Supports manual reset input for system control

Supervisors Applications

• Microprocessor system power monitoring
• Embedded controller reset generation
• Industrial equipment power supervision
• Communication module voltage tracking

Supervisors Procurement Notes

Verify component authenticity through authorized distributors only. Confirm package type matches design requirements. Check RoHS compliance status for environmental regulations. Ensure pinout compatibility with existing PCB layout. Validate operating temperature range against application environment.

Supervisors Selection Notes

Consider supply voltage range relative to target system rails. Evaluate reset delay timing requirements for system stability. Assess output drive capability for connected logic loads. Review manual reset functionality needs for maintenance access. Confirm thermal performance within expected operating conditions.

Supervisors Part Context

This part belongs to Maxim's DS1231 series of power supervisors. The 'S' suffix indicates a small-outline package variant. The '50' denotes the specific threshold voltage setting. This family provides essential protection for digital systems against unstable power conditions.

Supervisors Replacement Considerations

DS1231S-50+ is a lead-free version with identical electrical characteristics. Verify package dimensions match current footprint. Confirm threshold voltage specifications remain unchanged. Check output driver compatibility with existing circuitry.