Maxim Integrated MAX823REXK+T Microprocessor Supervisory Circuit

The MAX823REXK+T is a compact, high-precision microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in system monitoring applications. This component is particularly suitable for portable and space-constrained applications due to its small form factor.

With a highly accurate monitoring capability, the MAX823REXK+T ensures that the system's voltage levels remain within operational thresholds, safeguarding the system from unpredictable behavior, data corruption, or damage due to abnormal power supply conditions. The device features a reset output which remains asserted for a minimum timeout period after V_CC has risen above the reset threshold level, providing a stable system reset to the µP during power-up, power-down, and brownout conditions.

The supervisory circuit comes in a 5-pin SC-70 package, which is known for its compact size, making it an ideal choice for applications where space is at a premium. The MAX823REXK+T operates over a wide voltage range and features low supply current, making it an energy-efficient solution for battery-powered devices. It also includes a manual reset input that allows for a user or external microcontroller to trigger a system reset.

Key features of the MAX823REXK+T include:

• High precision monitoring of +5V, +3.3V, +3V, +2.5V, +1.8V power supply voltages.
• 140ms minimum power-on reset pulse width which ensures proper system reset.
• Manual reset capability for additional system control.
• Low power consumption, suitable for battery-operated devices.
• Immune to short V_CC transients, enhancing system reliability.
• Compact SC-70 packaging for space-saving applications.

Overall, the Maxim Integrated MAX823REXK+T serves as an essential component for system health monitoring, providing a reliable and energy-efficient solution for maintaining system integrity across a variety of electronic applications. Its precision and small footprint make it an excellent choice for designers looking to enhance the safety and performance of their digital systems.