DS1236A-5N

Supervisors Overview

The DS1236A-5N is a Supervisory Circuit manufactured by Analog Devices Inc. (Maxim Integrated). It provides reset, watchdog timer, and battery swap control functions in a single package. The device operates with a supply voltage range of 4.25 V to 5.75 V, ensuring reliable monitoring for 5 V logic systems. It features a programmable watchdog timer with a timeout period selectable from 10 ms to 1.28 s. The circuit includes a manual reset input and an open-drain reset output capable of driving multiple loads. It supports battery switchover detection and control to maintain system integrity during power transitions.

Supervisors Feature Summary

• Integrates supervisory reset, watchdog timer, and battery swap management
• Provides fault-free operation with automatic reset assertion on power failure
• Features a programmable watchdog timer with independent timeout selection
• Includes manual reset input and open-drain reset output for flexible system integration

Supervisors Applications

• Personal computers and workstations requiring robust power monitoring
• Industrial control systems needing watchdog protection
• Consumer electronics utilizing 5 V logic supplies
• Embedded systems requiring battery backup switchover functionality

Supervisors Procurement Notes

Verify the specific suffix '5N' corresponds to the 5 V operating range and DIP-20 package variant when sourcing. Confirm that the manufacturer designation aligns with Analog Devices or Maxim Integrated legacy branding. Ensure the component meets the required temperature grade for the intended application environment before procurement.

Supervisors Selection Notes

Select this component for applications requiring a combined reset, watchdog, and battery swap solution in a single IC. It is suitable for 5 V systems where precise voltage monitoring and fault recovery are critical. Consider the DIP-20 package if through-hole mounting is preferred over surface-mount alternatives within the same family.

Supervisors Part Context

The DS1236A belongs to the DS1236 series of supervisory circuits designed for microprocessor-based systems. This series integrates essential power management functions to enhance system reliability. The DS1236A-5N specifically targets 5 V logic applications, offering a compact solution compared to discrete implementations of reset and watchdog circuits.

Supervisors Replacement Considerations

Check for direct cross-references within the Maxim Integrated product line, such as other variants in the DS1236 series with different voltage ratings or packages. Verify pin compatibility and functional equivalence before substituting with components from other manufacturers.