DS1233MS-3+

Supervisors Overview

The DS1233MS-3+ is a voltage supervisory circuit from the EconoReset series by Analog Devices Inc./Maxim Integrated. It monitors a single input voltage with a threshold of 2.72V and features an active low, open drain or open collector output. The device supports power-fail detection and operates within a supply voltage range of 1.2V to 5.5V. It draws a typical operating supply current of 50 uA and provides a reset delay time of 350 ms. The component is housed in an SOIC-8 surface-mount package and functions across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrated power-fail detection capability for system reliability
• Configurable open drain or open collector output interface
• Low quiescent current consumption for energy efficiency

Supervisors Applications

• Microcontroller unit (MCU) power supervision
• Embedded system voltage monitoring
• Portable electronic device power management

Supervisors Procurement Notes

Verify the specific suffix designation to confirm the tape-and-reel packaging configuration, as this affects handling and storage requirements. Ensure the selected variant matches the required operating temperature range and package type for your PCB layout. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance status and material declarations before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a simple, low-cost supervisor with power-fail detection is required for single-rail systems. The open-drain output allows for flexible interfacing with various logic families. Consider the 50 uA supply current for battery-operated applications where power conservation is critical. Verify that the 2.72V threshold aligns with the monitored rail's nominal voltage and acceptable dropout levels.

Supervisors Part Context

This part belongs to the DS1233 family of EconoReset supervisors, designed for basic voltage monitoring tasks. The MS suffix indicates a surface-mount package variant, distinguishing it from through-hole options like the TO-92 package found in other family members. These devices are commonly used in industrial and consumer electronics where reliable power sequencing and fault detection are essential for system stability.

Supervisors Replacement Considerations

Direct substitutes include other DS1233 variants such as DS1233MS-5+ or DS1233A-10+, provided the voltage thresholds and package types are compatible. Ensure that any replacement maintains the same output configuration and reset delay characteristics to preserve system timing integrity.