DS1238AS-10+

Supervisors Overview

The DS1238AS-10+ is a MicroManager supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It integrates voltage monitoring, battery backup switching, and watchdog timer functions into a single component. The device operates within a supply voltage range of 4.5 V to 5.5 V, featuring a threshold voltage of 4.37 V for power-fail detection. It utilizes a 16-SOIC surface-mount package and supports an operating temperature range from 0°C to +70°C. Key electrical characteristics include a reset timeout of at least 40 ms and low battery standby current consumption below 200 nA.

Supervisors Feature Summary

• Integrates voltage supervision, battery backup switching, and watchdog timer functionality
• Provides accurate power-fail warning with configurable monitoring thresholds
• Converts standard CMOS SRAM into nonvolatile memory via automatic backup switching
• Includes manual reset input with debouncing capabilities

Supervisors Applications

• Microprocessor system power management
• CMOS SRAM nonvolatile memory conversion
• Industrial control systems requiring orderly shutdown
• Battery-backed embedded applications

Supervisors Procurement Notes

Verify the specific suffix 'AS' against official Maxim Integrated documentation to confirm package type and temperature grade accuracy. Ensure compatibility with existing PCB footprints for the 16-SOIC configuration. Confirm that the 4.37 V threshold aligns with system requirements before procurement.

Supervisors Selection Notes

Select this component when a combined solution for voltage supervision, battery backup, and watchdog timing is required. It is suitable for designs needing automatic memory protection during power transients. Consider the 16-SOIC package constraints and the specified industrial temperature range during integration planning.

Supervisors Part Context

This part belongs to the DS1238A family of MicroManager circuits designed for comprehensive power system supervision. It serves as a specialized power management IC within the PMIC category, offering integrated solutions for maintaining system integrity during power fluctuations and ensuring data retention in volatile memory systems.

Supervisors Replacement Considerations

Consult official datasheets for pin-compatible alternatives such as the DS1238S or DS1238A variants. Verify functional equivalence regarding threshold voltages and package dimensions before substitution.