Maxim Integrated MAX6384XS23D6 Microprocessor Reset Circuit

The Maxim Integrated MAX6384XS23D6 is a compact, high-precision microprocessor (µP) supervisory circuit designed to monitor power supplies in 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 device is particularly suited for battery-powered applications because of its low power consumption and small footprint.

The MAX6384XS23D6 ensures that the µP is reset to a known state during power-up, power-down, or brown-out conditions. It asserts a reset signal whenever the VCC supply voltage falls below the factory-set reset threshold of 2.3V. The reset output remains asserted for a minimum reset timeout period of 280ms after VCC has risen above the reset threshold, ensuring that the system has stabilized before the processor starts operating.

This supervisory circuit comes in a compact, 4-pin SC70 package, which is ideal for space-constrained applications. Its small size and high integration make it an excellent choice for portable devices, such as PDAs, smartphones, and other handhelds.

Key features of the MAX6384XS23D6 include:

• Factory-set reset threshold voltage of 2.3V, tailored for 2.5V powered circuits.
• Minimum reset timeout period of 280ms to guarantee a proper system reset.
• Low supply current of 1.2µA, which is beneficial for battery-powered devices.
• Immunity to short VCC transients, ensuring stable operation under noisy conditions.
• Available in a small SC70 package, providing a space-efficient power monitoring solution.

The MAX6384XS23D6's applications are diverse, ranging from computers and controllers to portable/battery-powered equipment. Its robust feature set and simple integration make it a reliable choice for designers looking to enhance system stability and extend product life cycles. Maxim Integrated's commitment to quality ensures that this reset circuit will maintain system integrity and prevent data corruption due to unpredictable power supply fluctuations.