MAX6829SVUT+T

MAX6829 is a dual ultra-low-voltage SOT23 µP supervisor with a manual reset and watchdog timer. This is an ultra-low-voltage microprocessor (µP) supervisory circuit designed to monitor two power supplies and have manual reset and watchdog input functions. This device asserts a system reset if any of the monitored supplies fall below the preprogramed thresholds, and maintains reset for a minimum timeout period after the supplies rise above the threshold. Microprocessor supervisors significantly improve system reliability and accuracy compared to separate ICs or discrete components. The device includes manual reset and watchdog inputs. This has an auxiliary monitor that allows user-adjustable input to monitor voltages down to +0.6V. Applications include portable/battery powered equipment, embedded controllers, intelligent instruments, critical µP monitoring, multi-voltage systems.

• Monitor primary VCC supplies from +1.8 to +5.0V and secondary VCC2 supplies from +0.9 to +2.5V
• User adjustable RESET IN down to +0.63V
• 140ms minimum reset timeout delay, 1.6s typ watchdog timeout period (TA = -40° to +85°C)
• Manual reset input
• Guaranteed reset valid down to VCC = +1.0V
• Immune to short negative VCC transients
• No external components
• Operating voltage range from 1.2 to 5.5V (TA = -40°C to +125°C)
• 2µA maximum VCC2 supply current (VCC2 ≤ +2.5V, TA = +25°C)
• 6 lead SOT23 package, temperature range from -40°C to +125°C

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