DS1236-10+

Supervisors Overview

The DS1236-10+ is a MicroManager supervisory circuit designed for single-voltage monitoring applications. It operates within a supply voltage range of 4.5 V to 5.5 V, featuring an undervoltage threshold of 4.25 V and an overvoltage threshold of 4.5 V. The device provides a reset delay time of 150 ms and supports manual reset functionality. It includes a watchdog timer, battery backup switch, and power-fail detection capabilities. Available in a 16-pin SOIC-Wide package, it functions across temperatures from -40°C to +85°C with a maximum operating current of 4 mA.

Supervisors Feature Summary

• Monitors pushbutton inputs for external override control
• Converts CMOS SRAM into nonvolatile memory via battery backup
• Unconditionally write-protects memory when power supply is out of tolerance
• Controls external power switches for high-current applications

Supervisors Applications

• Orderly shutdown in nonvolatile microprocessor applications
• Low-power stop mode control in battery-operated handheld devices
• High-current application power switch control

Supervisors Procurement Notes

Verify the exact suffix against official Analog Devices documentation, as variations such as 'S' or 'A' indicate specific package or temperature differences. Confirm RoHS compliance status directly with the manufacturer, as legacy Maxim Integrated parts may have varying environmental declarations. Check current lifecycle status, as many DS1236 variants are marked as obsolete or limited supply.

Supervisors Selection Notes

Select this component for systems requiring integrated voltage supervision, watchdog timing, and battery backup management in a single IC. Ensure the 4.5 V to 5.5 V operating range aligns with the system's main power rail. Verify that the 16-pin SOIC package fits the board layout constraints. Consider the industrial temperature range if the application environment exceeds standard commercial limits.

Supervisors Part Context

The DS1236 belongs to the Maxim Integrated MicroManager family, which combines multiple power management functions into one chip. This series simplifies design by integrating voltage monitoring, reset generation, and battery backup switching. The DS1236 specifically targets 5V microprocessor systems, offering a compact solution for ensuring system reliability during power transients.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: DS1236S-10N+T&R, DS1236AS-5, DS1236S-5.