DS1232LPSN-2+

Supervisors Overview

The DS1232LPSN-2+ is a low-power MicroMonitor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 3.3 V to 5.5 V and monitors a single input channel. The device features an SOIC-16 surface-mount package and supports active high, active low, and open drain output configurations. It includes a watchdog timer and power-fail detection capabilities without battery backup switching. The reset delay time is specified at 610 ms, with an overvoltage threshold of 4.74 V. Operating current is 200 uA, and accuracy is rated at 10%. The component functions across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates watchdog timer functionality for system stability monitoring
• Provides configurable reset outputs including active high, active low, and open drain options
• Detects power failures to ensure controlled system shutdown or restart

Supervisors Applications

• Microprocessor system supervision
• Embedded controller reset management
• Industrial control board power monitoring

Supervisors Procurement Notes

Verify the exact suffix designation when sourcing, as variations such as TR or T&R indicate different packaging formats like reels or cut tape rather than tubes. Confirm RoHS compliance status through official manufacturer documentation, as legacy stock may differ from current production runs. Ensure the specific lot date code aligns with project requirements due to potential lifecycle changes in the MicroMonitor series.

Supervisors Selection Notes

Select this component when a single-channel voltage monitor with integrated watchdog timing is required for space-constrained designs. The SOIC-16 package offers a balance between pin count and board area. Consider the 610 ms reset delay and 10% accuracy specifications against system timing constraints. Verify that the 200 uA operating current meets low-power design goals compared to higher consumption alternatives in the same family.

Supervisors Part Context

This part belongs to the DS1232LPSN series of low-power MicroMonitor chips designed for reliable microprocessor supervision. It serves as a specialized power management IC within the broader PMIC category, focusing on voltage monitoring and reset generation. The component is distinct from real-time clock variants within the DS1232 family, lacking battery backup switching features found in other models.

Supervisors Replacement Considerations

Direct substitutes include the DS1232LP+ and DS1232+, which offer similar supervisory functions but may differ in package type or manufacturing origin. Verify pin compatibility and electrical parameters before substitution.