Maxim Integrated MAX6318LHUK49BX-T Microprocessor Reset Circuit

The MAX6318LHUK49BX-T is a highly reliable, low-power 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 systems that require precision voltage monitoring.

This compact supervisory circuit is tailored to maintain system integrity by monitoring the power supply voltage. In the event that the supply voltage drops below a preset threshold, the MAX6318LHUK49BX-T asserts a reset signal to reset the system, thereby preventing code execution errors. The reset signal remains asserted for a minimum timeout period after V_CC has risen above the reset threshold level, ensuring the system microprocessor is reset properly during power-up, power-down, and brownout conditions.

Key features of the MAX6318LHUK49BX-T include:

• Factory-Set Reset Thresholds: The reset voltage threshold is preset at the factory and is available in a variety of options to accommodate different system requirements.
• Low Power Consumption: Designed for power-sensitive applications, this device consumes a low quiescent current, which is crucial for battery-operated equipment.
• Manual Reset Input: It includes a manual reset input that allows for a system reset to be initiated with an external pushbutton or logic signal.
• Reset Timeout: The minimum power-on reset timeout period ensures that the system microprocessor is held in the reset state long enough to stabilize after a power-up.
• Compact Package: The device comes in a small, 5-pin SOT-23 package, saving valuable board space in space-constrained applications.
• Temperature Range: The operating temperature range of -40°C to +85°C allows for its use in various environmental conditions.

Applications for the MAX6318LHUK49BX-T are diverse and include portable/battery-powered devices, computers, controllers, intelligent instruments, and critical µP power monitoring. The combination of features makes this device an excellent choice for any system that requires an accurate, reliable reset circuit to maintain operational integrity.

With its precision monitoring capabilities and robust design, the MAX6318LHUK49BX-T from Maxim Integrated stands out as a superior choice for designers looking to enhance system stability and prolong operational life.