Maxim Integrated MAX6316LUK29BX/V+ Microprocessor Reset Circuit

The Maxim Integrated MAX6316LUK29BX/V+ is a highly reliable and precise 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 with a 2.9V power supply voltage.

This compact supervisory IC is tailored to maintain system integrity by monitoring the power supply voltage. In the event of a power failure or an unexpected dip below the preset threshold, the MAX6316LUK29BX/V+ asserts a reset signal to the microprocessor to prevent code execution errors. The reset signal remains asserted for a minimum of 140ms after V<sub>CC has risen above the reset threshold level, ensuring the system has sufficient time to stabilize before the processor restarts its operations.

Key features of the MAX6316LUK29BX/V+ include:

• Factory-trimmed V<sub>CC reset threshold voltage of 2.9V suitable for use with 3V power supplies.
• Immune to short V<sub>CC transients to avoid unnecessary resets, enhancing system stability.
• Low supply current of 1.2µA (typical) makes it an energy-efficient choice for battery-operated applications.
• Active-low, push-pull RESET output which provides a robust signal to connected microprocessor units.
• Guaranteed RESET valid to V<sub>CC = +1V for low-voltage operations.
• Temperature range from -40°C to +85°C, ensuring reliable operation under varying environmental conditions.

The MAX6316LUK29BX/V+ is available in a compact SOT-23 package, making it ideal for space-constrained applications. Its simple design allows for straightforward integration into a wide range of products, including portable devices, embedded systems, and other digital applications that require a reliable reset function.

With its precision monitoring and low power consumption, the MAX6316LUK29BX/V+ is a smart choice for designers looking to enhance system reliability without compromising on power efficiency or space.