Maxim Integrated MAX6834HXRD3+T Microprocessor Supervisory Circuits

The MAX6834HXRD3+T from Maxim Integrated is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require battery backup and/or power-on reset capability.

This device is specifically engineered to maintain system integrity by monitoring the power supply voltage levels. It ensures that the µP resets cleanly during power-up, power-down, and brown-out conditions. With its low supply current of 1.5µA (typical), it is an ideal choice for portable and battery-operated equipment.

The MAX6834HXRD3+T comes in a compact, surface-mountable SOT-323 package, making it suitable for space-constrained applications. It offers a factory-trimmed reset threshold voltage, which is preset to 3.08V, suitable for operation with a variety of supply voltages and systems that require a precise reset threshold.

Key features of the MAX6834HXRD3+T include:

• Low Quiescent Current: At 1.5µA (typical), it helps in prolonging battery life in portable applications.
• Adjustable Reset Timeout Delay: The reset timeout period can be set by connecting a capacitor to the MR bar pin.
• Immune to Short VCC Transients: It ensures reliable operation by ignoring brief glitches on the VCC line.
• Manual Reset Input: A dedicated input allows for a manual system reset.
• High Threshold Accuracy: The reset threshold voltage is factory-trimmed for high accuracy, ensuring dependable operation.
• Wide Operating Temperature Range: The device operates over the -40°C to +125°C extended temperature range, which is suitable for industrial applications.

The MAX6834HXRD3+T supervisory circuit is a versatile component that can be used in a wide range of applications, including computers, controllers, intelligent instruments, portable/battery-powered products, and embedded systems. Its robust feature set ensures that it maintains system integrity by providing a reliable reset signal to the µP, safeguarding your system against power supply uncertainties.

With Maxim Integrated's reputation for quality and reliability, the MAX6834HXRD3+T is a top choice for designers looking to enhance system stability and extend operational life.