Maxim Integrated MAX6412UK29+T Microprocessor Reset Circuits

The MAX6412UK29+T is a compact, high-precision microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a significant level of system reliability and accuracy required in critical electronic applications, ensuring that the µP and its associated hardware are reset properly during power-up, power-down, or brown-out conditions.

This device operates over a wide voltage range and is particularly suitable for battery-powered equipment due to its low power consumption. The MAX6412UK29+T is designed to assert a reset signal whenever the VCC supply voltage falls below its factory-trimmed reset threshold of 2.925V. The reset output remains asserted for a minimum reset timeout period after VCC rises above the reset threshold, providing a guaranteed reset signal duration which can be critical for proper system recovery.

Key features of the MAX6412UK29+T include:

• Factory-Trimmed VCC Reset Threshold: The device comes with a preset VCC threshold of 2.925V, which is tailored for 3V-powered systems.
• Low Quiescent Current: With its low power consumption, it is ideal for portable and battery-operated devices.
• Manual Reset Input: It provides a manual reset input that allows for a system reset to be triggered with an external button or signal.
• Reset Timeout: After the supply voltage rises above the reset threshold, the reset signal is kept active for a preset timeout period to ensure system stability.
• Small SOT23 Packaging: The compact 5-pin SOT23 package saves space on PCBs, making it ideal for space-constrained applications.

Additionally, the MAX6412UK29+T's open-drain reset output allows for the use of an external pull-up resistor, enabling the connection to different logic levels as required by specific applications. This flexibility, along with the device's immunity to short VCC transients, makes the MAX6412UK29+T a robust choice for complex digital systems that require reliable reset functionality.

Whether it's consumer electronics, computers, controllers, or other sophisticated digital hardware, the Maxim Integrated MAX6412UK29+T provides the necessary protection and stability for your system to operate effectively through various supply conditions.