Maxim Integrated MAX6807UR46+T Microprocessor Reset Circuit

The MAX6807UR46+T from Maxim Integrated is a highly efficient microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides a significant level of protection against low-voltage conditions, ensuring that the µP and other critical circuit components operate reliably within their voltage specifications.

This component is particularly useful in situations where consistent and accurate monitoring of the system voltage is crucial. It is capable of asserting a reset signal whenever the V<sub>CC supply voltage falls below a preset threshold, maintaining it until the supply voltage has stabilized above the threshold for a specified period. This reset signal ensures that the µP resets in a predictable manner, preventing any erratic behavior due to insufficient power.

The MAX6807 comes in a compact SOT-23 package, making it an excellent choice for space-constrained applications. The device features a factory-set reset threshold voltage of 4.6V, which is suitable for 5V-powered systems. It also offers a low supply current of only 1.2µA, which is highly beneficial for portable and low-power applications.

Key features of the MAX6807UR46+T include:

• Factory-set reset threshold voltage of 4.6V
• Low supply current of 1.2µA
• Guaranteed reset valid to V<sub>CC = 1V
• ±2.5% reset threshold accuracy over temperature
• No external components required
• Compact SOT-23 package

Applications for the MAX6807UR46+T are diverse, encompassing everything from computers and controllers to portable/battery-powered equipment and intelligent instruments. Its robustness and reliability make it an essential component for systems requiring consistent operation and protection against undervoltage conditions.

Overall, the Maxim Integrated MAX6807UR46+T is a highly reliable and efficient solution for voltage monitoring in digital systems, ensuring that devices operate safely within their power specifications and providing peace of mind for engineers and product designers alike.