DS1836B-10

Supervisors Overview

The DS1836B-10 is a MicroManager integrated circuit designed for system supervision in 5V applications. It monitors the VCC supply voltage and asserts a reset signal when the voltage falls outside the specified tolerance window. The device features a precision temperature-compensated reference and comparator circuit to detect out-of-tolerance conditions. It includes a power-fail signal generation mechanism that switches operation to a backup battery supply when VCC drops below 3.8V. Upon restoration of VCC above 3.9V, the device resumes normal operation from the main supply after maintaining the reset state for 350ms.

Supervisors Feature Summary

• Monitors VCC voltage status and generates internal power-fail signals during out-of-tolerance conditions
• Switches to battery supply when VCC degrades below 3.8V and resumes VCC operation above 3.9V
• Maintains reset assertion for 350ms after VCC returns to an in-tolerance condition

Supervisors Applications

• Systems designed to operate with dual power supplies
• PIC microprocessor applications requiring precise supervision
• Battery-operated handheld applications needing orderly shutdown control

Supervisors Procurement Notes

Verify component authenticity through authorized distributors as this part may be discontinued or obsolete. Confirm package type availability matches design requirements. Check for RoHS compliance status if environmental regulations apply. Ensure replacement components maintain identical pinout and electrical characteristics for direct integration.

Supervisors Selection Notes

Select this component for 5V systems requiring precise voltage monitoring without discrete comparator circuits. The integrated temperature compensation ensures stable threshold detection across operating ranges. Consider the 350ms reset delay requirement for system timing constraints. Verify compatibility with existing backup battery switching logic.

Supervisors Part Context

Part of the Maxim Integrated MicroManager family providing comprehensive power management supervision. Designed to replace multiple discrete components including voltage references, comparators, and switching transistors. Offers space-saving solutions for embedded systems requiring reliable power monitoring and controlled shutdown sequences.

Supervisors Replacement Considerations

DS1836AS-10+T&R: Similar MicroManager function with push-pull output and 200ms minimum reset timeout. DS1236A-10+: 16-pin variant with additional watchdog timer functionality. Verify pin compatibility and reset timeout specifications before substitution.