Analog Devices Inc. ADM812ZARTZ-REEL

Processor Supervisor 2.32V 2.5V/3V/3.3V/5V 4-Pin(3 Tab) SOT-143 T/R
IC SUPERVISOR RESET 2.32V SOT143
Supervisory Circuits RESET GENERATOR I.C.
1-CHANNEL POWER SUPPLY SUPPORT CKT PDSO4
The ADM811/ADM812 are reliable voltage monitoring devices suitable for use in most voltage monitoring applications. The ADM811/ADM812 are designed to monitor six different voltages, each allowing a 5% or 10% degradation of standard PSU voltages before a reset occurs. These voltages have been selected for the effective monitoring of 2.5 V, 3 V, 3.3 V, and 5 V supply voltage levels. Included in this circuit is a debounced manual reset input. Reset can be activated using an electrical switch (or an input from another digital device) or by a degradation of the supply voltage. The manual reset function is very useful, especially if the circuit in which the ADM811/ADM812 are operating enters into a state that can only be detected by the user. Allowing the user to reset a system manually can reduce the damage or danger that could otherwise be caused by an out-of-control or locked system. APPLICATIONS Microprocessor systems Controllers Intelligent instruments Automotive systems Safety systems Portable instruments Data Sheet, Rev. F, 8/09