Maxim Integrated's MAX709MCPA: Power-Supply Monitor with Reset

The MAX709MCPA from Maxim Integrated is an essential component designed to enhance the reliability and stability of electronic systems. This integrated circuit (IC) is a power-supply monitor with a reset feature, specifically engineered to monitor the power supply voltage of microprocessors (µPs) and digital systems. It provides a precise, low-cost method for monitoring power supplies and issuing a reset signal to the connected microprocessor during power-up, power-down, and brown-out conditions.

The device comes in a compact 8-pin DIP package, making it suitable for space-constrained applications. The MAX709MCPA operates by monitoring the VCC voltage and asserting a reset signal whenever VCC falls below the factory-set reset threshold voltage. The reset output remains asserted for a preset timeout period after VCC rises above the reset threshold, ensuring that the µP has enough time to stabilize and initialize before starting operation.

Key features of the MAX709MCPA include:

• Factory-Set Reset Thresholds: The reset thresholds are precisely set at the factory, eliminating the need for external components and adjustments.
• Reset Timeout: The device includes a 200ms (min) reset timeout period, which provides a reliable reset signal duration.
• Low Power Consumption: The IC has a low quiescent current, making it ideal for power-sensitive applications.
• Wide Operating Voltage Range: It supports a broad range of supply voltages, accommodating various system requirements.
• Manual Reset Input: An additional feature is the manual reset input, which allows for a system reset to be triggered manually when needed.

The MAX709MCPA is perfect for use in systems where reliable voltage monitoring is critical, such as computers, controllers, and intelligent instruments. Its ability to provide a dependable reset signal to the microprocessor ensures that systems operate smoothly and reduces the risk of data corruption due to power irregularities.

Maxim Integrated's commitment to quality and reliability is evident in the MAX709MCPA, making it a trusted choice for designers looking to incorporate robust power-supply monitoring and reset functionality into their systems.