Product Summary
The MAX823MEUK+ is a 5-Pin microprocessor supervisory circuit. The MAX823MEUK+ combines reset output, watchdog, and manual-reset input functions in a 5-pin SOT23-5 package. The device significantly improves system reliability and accuracy compared to separate ICs or discrete components. The MAX823MEUK+ is specifically designed to ignore fast transients on VCC. Five preprogrammed reset threshold voltages are available, designated by the following package suffixes: L = 4.63V, M = 4.38V, T = 3.08V, S = 2.93V, and R = 2.63V. The applications of the MAX823MEUK+ include Battery-Powered Computers and Controllers, Embedded Controllers, Intelligent Instruments, Automotive Systems, Critical μP Monitoring, Portable/Battery-Powered Equipment.
Parametrics
MAX823MEUK+ absolute maximum ratings: (1)VCC: -0.3V to +6.0V; (2)All Other Pins: -0.3V to (VCC + 0.3V); (3)Input Current, All Pins Except RESET and RESET: 20mA; (4)Output Current, RESET, RESET: 20mA; (5)Rate of Rise, VCC: 100V/μs; (6)Continuous Power Dissipation (TA = +70℃), SOT23-5 (derate 7.1mW/℃ above +70℃): 571mW; (7)Operating Temperature Range: -40℃ to +85℃; (8)Storage Temperature Range: -65℃ to +160℃; (9)Lead Temperature (soldering, 10sec): +300℃.
Features
MAX823MEUK+ features: (1)Precision Monitoring of +3V, +3.3V, and +5V Power Supplies; (2)Operating Current: 10μA; (3)Fully Specified Over Temperature; (4)140ms Min Power-On Reset; (5)Guaranteed RESET Valid to VCC = 1V; (6)Power-Supply Transient Immunity; (7)Watchdog Timer with 1.6sec Timeout; (8)Manual-Reset Input; (9)No External Components.
Diagrams
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