DS1836

PRODUCTION

3.3V/5V MicroManager

Analog Devices DS1836 Product Info

10 February 2026 4

Features

5V or 3.3V power-on reset

True 3V operation power switch

Switches to battery at 3.8V (2.6V for 3.3V versions)

Excellent for systems designed to operate with dual power supplies

Asserts resets during power transients

Maintains reset for 350ms after V_CC returns to an in-tolerance condition

Reduces need for discrete components

Precision temperature-compensated voltage reference and voltage sensor

8-pin DIP or space saving 8-pin SO surface mount available

CMOS reset output for low current operation

Operating temperature of -40°C to +85°C

Perfect for PIC microprocessor applications

Part details & applications

The DS1836 MicroManager performs three vital system functions. First, a precision temperature-compensated reference and comparator circuit monitor the status of the voltage on V_CC and when an out-of-tolerance condition is detected, an internal power-fail signal is generated that forces the reset active. If V_CC continues to degrade, it switches to the battery supply when V_CC drops below 3.8V (2.6V for 3.3V versions). When V_CC exceeds 3.9V (2.8V for 3.3V versions); V_OUT will again be supplied from V_CC. Reset will remain active for 350 ms after V_CC returns to an in-tolerance condition.

Lastly, the DS1836 supports a sense input that sends a non-maskable interrupt whenever the sense input drops below 1.25V.

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