The MAX6740XKSDD3+T from Maxim Integrated is a compact, highly reliable microprocessor (µP) supervisory circuit designed to maintain system integrity during power failures or unexpected events. This device is ideal for portable and battery-powered equipment, such as PDAs, smartphones, and other handheld devices due to its low power consumption and small footprint.

Key Features

• Precision Monitoring: This supervisory circuit monitors the system voltage with precision, ensuring that the µP and other critical components operate within safe parameters.
• Low Power Consumption: Designed for power-sensitive applications, the MAX6740XKSDD3+T consumes minimal power, thereby extending battery life and reducing overall power costs.
• Manual Reset Input: A manual reset input allows for an external trigger to reset the system, providing an additional layer of control.
• Compact SOT Package: The device comes in a small SOT (Small Outline Transistor) package, making it suitable for space-constrained applications.
• Immune to Short Vcc Transients: The circuit is designed to ignore short transients on the Vcc line, which helps to prevent false triggering and unnecessary system resets.

Applications

The MAX6740XKSDD3+T is versatile and can be used in a variety of applications where reliable system monitoring is crucial. These include:

• Portable/Battery-Powered Devices
• Computers and Servers
• Embedded Systems
• Industrial Controllers
• Medical Equipment

Technical Specifications

With a supply voltage range of 1.2V to 5.5V, the MAX6740XKSDD3+T operates over a wide range of input voltages. The reset output stage can be either push-pull or open-drain, depending on the specific needs of the application. It also offers a factory-set reset threshold voltage and features a reset timeout period that ensures the system has adequate time to recover before resuming operation.

Conclusion

Maxim Integrated's MAX6740XKSDD3+T is an excellent choice for designers looking for a reliable, low-power reset circuit to safeguard their microprocessor-based systems. Its combination of features, including precision voltage monitoring, low power consumption, and compact packaging, make it a versatile component suitable for a wide range of applications.