DS1836AS-5

Supervisors Overview

The DS1836AS-5 is a MicroManager supervisory circuit designed for 5V systems. It monitors VCC voltage and generates a reset signal when out-of-tolerance conditions are detected. The device includes a power-fail signal that triggers a switch to a battery supply when VCC drops below 3.8V, reverting to VCC when it exceeds 3.9V. It maintains the reset state for 350ms after VCC returns to normal. Key electrical parameters include a maximum supply voltage of 5.5V, an operating current of 55uA, and a threshold voltage of 4.37V. It operates within a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Monitors system voltage and asserts reset during out-of-tolerance conditions
• Switches to battery backup supply when main voltage degrades below threshold
• Maintains reset state for a fixed duration after voltage recovery

Supervisors Applications

• Systems requiring dual power supply management
• PIC microprocessor applications
• Embedded systems needing automatic power fail detection

Supervisors Procurement Notes

Verify component authenticity through authorized channels as this part may be discontinued or limited in supply. Confirm package type and suffix compatibility with existing designs. Check RoHS compliance status if required by project specifications. Ensure thermal and electrical ratings match application requirements before integration.

Supervisors Selection Notes

Select this component for applications requiring precise voltage monitoring and automatic battery switchover. Consider the 350ms reset delay and 3.8V/3.9V switching thresholds for system timing. Evaluate the 55uA operating current for low-power constraints. Verify SOIC-8 package suitability for PCB layout.

Supervisors Part Context

Part of the DS1836 MicroManager family offering integrated voltage supervision and battery backup switching. Designed to reduce discrete component count in embedded systems. Provides CMOS reset output for low current operation. Available in surface mount packages for space-constrained designs.

Supervisors Replacement Considerations

DS1836AS-10+T&R: Similar MicroManager function but configured for different voltage thresholds. Verify threshold compatibility and package dimensions before substitution.