Maxim Integrated MAX6703ARKA+T Microprocessor Supervisory Circuit

The Maxim Integrated MAX6703ARKA+T is a highly compact, low-power microprocessor (µP) supervisory circuit designed 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 systems that require voltage monitoring.

This supervisory circuit is ideal for use in a variety of applications, including portable/battery-powered equipment, computers, controllers, and intelligent instruments. The MAX6703ARKA+T ensures that the µP is fully reset during power-up, power-down, and brownout conditions. It also features a manual reset input that allows the user to trigger a reset. A reset output is provided, which remains asserted for a period of time after the VCC supply voltage and manual reset input have returned to acceptable levels, ensuring that the µP restarts in a predictable state.

The device comes in a small 8-pin SOT23 package, making it suitable for space-constrained applications. With a supply voltage range of 1.1V to 5.5V, it is versatile enough to accommodate a variety of power supply configurations. The MAX6703ARKA+T has a factory-trimmed reset threshold voltage, which is available in a variety of options to match specific system voltage requirements. This feature simplifies the design process and enhances system stability and accuracy.

Additional features of the MAX6703ARKA+T include a low supply current of only 12µA, which is essential for power-sensitive applications. The device also offers an active-low open-drain reset output, providing the flexibility to interface with a range of other digital components. Moreover, its built-in debounce circuitry ensures that the manual reset input is noise-tolerant, preventing false triggering.

In summary, the Maxim Integrated MAX6703ARKA+T is a robust, easy-to-use supervisory circuit that provides essential protective functions for microprocessor systems. Its small footprint, low power consumption, and precision voltage monitoring capabilities make it an excellent choice for designers looking to enhance system reliability in their digital and microprocessor-based applications.