Maxim Integrated MAX6347UR44-T Microprocessor Reset Circuit

The Maxim Integrated MAX6347UR44-T is a compact, highly reliable microprocessor (μP) supervisory circuit designed to monitor power supplies in digital systems. It provides a critical function by ensuring that the μP and its peripherals are reset properly during power-up, power-down, or brown-out conditions. The MAX6347UR44-T is particularly suitable for portable, battery-powered applications due to its low power consumption and small footprint.

Key Features

• Precision Voltage Monitoring: The device features a factory-trimmed reset threshold voltage of 4.40V, ensuring accurate monitoring of the VCC supply.
• Low Power Consumption: With its low supply current of only 1.2μA, the MAX6347UR44-T is ideal for power-sensitive applications, helping to extend battery life.
• Manual Reset Input: The manual reset input allows for a system reset to be initiated with an external pushbutton or logic signal, providing additional system control.
• Reset Timeout: It offers a 140ms min reset active timeout period, giving the system ample time to stabilize after a reset event.
• Operating Temperature Range: Designed to operate over a wide temperature range, from -40°C to +125°C, making it suitable for harsh environments.
• Small Package: The device comes in a compact SOT-23 package, saving valuable board space in space-constrained applications.

Applications

The MAX6347UR44-T is versatile and can be used in a wide array of applications, including:

• Computers and Controllers
• Portable/Battery-Powered Equipment
• Intelligent Instruments
• Critical μP and μC Power Monitoring

Maxim Integrated's commitment to quality and reliability is evident in the MAX6347UR44-T, making it a go-to solution for systems that require a dependable reset mechanism. Its precision voltage monitoring and low power consumption, coupled with the convenience of a manual reset, ensure that your digital system maintains optimal performance and stability throughout its operational life.