DS1836D-10

Supervisors Overview

The DS1836D-10 is a MicroManager supervisory circuit designed for 5V and 3.3V systems, manufactured by Analog Devices Inc./Maxim Integrated. It monitors the VCC supply voltage using a precision temperature-compensated reference and comparator. Upon detecting an out-of-tolerance condition, it asserts a reset signal and generates a power-fail output. The device switches to a battery backup supply when VCC drops below 3.8V (2.6V for 3.3V versions) and returns to VCC when voltage exceeds 3.9V (2.8V). It maintains the reset state for 350 ms after VCC recovers. Operating from 1.2V to 5.5V with a typical current of 55 uA, it features a 4.37V threshold and operates within -40°C to +85°C in an 8-SOIC package.

Supervisors Feature Summary

• Monitors system voltage status and asserts reset during power transients or out-of-tolerance conditions
• Automatically switches power source to battery backup when main supply degrades below specified thresholds
• Generates internal power-fail signal to warn microprocessor of impending power loss
• Maintains reset active for a fixed duration after main supply returns to tolerance

Supervisors Applications

• Systems requiring dual power supply management
• PIC microprocessor applications
• Battery-backed embedded systems
• Low-power handheld devices requiring orderly shutdown

Supervisors Procurement Notes

Verify component authenticity through authorized distributors as this part may be discontinued. Confirm RoHS compliance status and specific suffix variations against official datasheets. Check lead times carefully due to potential obsolescence. Ensure packaging type matches design requirements. Validate operating temperature range suitability for the target environment before finalizing procurement decisions.

Supervisors Selection Notes

Select this component for applications requiring precise voltage monitoring without manual reset inputs. Suitable for designs needing automatic battery switchover functionality. Consider the 350 ms reset delay and 4.37V threshold compatibility with the target logic family. Evaluate space constraints regarding the 8-SOIC package option versus DIP alternatives. Ensure the 55 uA operating current aligns with system power budget requirements.

Supervisors Part Context

The DS1836 belongs to the MicroManager series, integrating voltage supervision, power-fail signaling, and battery switching into a single IC. This reduces discrete component count compared to traditional solutions. The D-10 suffix typically denotes industrial temperature range and specific threshold characteristics within the broader DS1836 family, which includes variants like DS1836AS and DS1836CS.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.