The MAX6326UR39 from Maxim Integrated is a pinnacle of reliability and precision in the realm of microprocessor (μP) supervisory circuits. This device is designed to maintain system integrity by monitoring the power supply voltage of μP and digital systems. It provides a highly accurate reset signal to the host processor when the monitored supply voltage drops below a predefined threshold, ensuring a proper system reboot and preventing system failures.

Key Features

• Reset Threshold: The MAX6326UR39 comes with a preset reset threshold voltage of 3.9V, tailored for systems operating at 5V supply levels or other specific requirements.
• Package: It is available in a compact SC70 or SOT package, making it ideal for space-constrained applications.
• Power Consumption: This component is distinguished by its ultra-low power consumption, drawing a quiescent current of only 1μA, which is critical for battery-powered and portable devices.
• Reset Output: The device offers an active-low reset output, which remains asserted for a minimum of 140ms after VCC has risen above the reset threshold level, ensuring a reliable reset signal.
• Temperature Range: It operates over an extended temperature range of -40°C to +85°C, suitable for various industrial and commercial environments.
• Supply Voltage Range: The MAX6326UR39 is designed to operate with a supply voltage range of 1.2V to 5.5V, accommodating a wide array of power sources.

Applications

The device is an essential component for systems that require a high degree of reliability and precision. It is particularly useful in portable electronics, computers, controllers, and other systems that cannot tolerate any disruption in service. The MAX6326UR39's low power consumption and small footprint make it an excellent choice for handheld devices, medical monitoring equipment, and other battery-operated applications.

Maxim Integrated's commitment to quality ensures that the MAX6326UR39 provides the performance and reliability expected from a leader in analog integration. With its precision voltage monitoring and reset capabilities, this component is a vital safeguard for maintaining system stability and preventing data loss during power anomalies.