Maxim Integrated MAX6348UR46+T Microprocessor Reset Circuit

The MAX6348UR46+T is a compact, highly reliable microprocessor (µP) supervisory circuit designed by Maxim Integrated to maintain system integrity during power failures or unexpected conditions. This device is specifically engineered to monitor the power supply voltages in digital systems and ensure that the µP and its peripherals are reset properly during power-up, power-down, or brown-out conditions. The MAX6348UR46+T is a pivotal component for applications requiring high reliability and precision.

Key Features

• Voltage Monitoring: The device features a preset reset threshold voltage of 4.6V, which is ideal for 5V-powered systems. It ensures that the system microcontroller starts in a known state by monitoring the supply voltage and asserting a reset signal whenever the supply voltage drops below the threshold.
• Low Power Consumption: With its low supply current of only 1.2µA, the MAX6348UR46+T is suitable for power-sensitive applications, helping to extend battery life in portable devices.
• Manual Reset Input: The inclusion of a manual reset input allows for a reset to be triggered with an external switch or logic signal, providing additional control and safety for system maintenance or troubleshooting.
• High Accuracy: The reset threshold accuracy is maintained at ±2.5% over temperature, ensuring reliable operation under varying conditions.
• Immunity to Short Vcc Transients: The device is designed to be immune to short-duration transients on the Vcc line, which prevents false resets and ensures stable operation.
• Compact SOT-23 Package: The MAX6348UR46+T comes in a small, 3-pin SOT-23 package, making it ideal for space-constrained applications.

Applications

The MAX6348UR46+T is suitable for a wide range of applications where reliable voltage monitoring is critical. It is commonly used in:

• Computers and Servers
• Embedded Systems
• Portable/Battery-Powered Equipment
• Consumer Electronics
• Industrial Controllers
• Telecommunication Systems

With its precision voltage monitoring and low power consumption, the MAX6348UR46+T from Maxim Integrated is an essential component for safeguarding system integrity across various electronic applications.