QuickView - DS1836 3.3V/5V MicroManager

Description

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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.

Key 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