Maxim Integrated MAX806CSA+T Microprocessor Supervisory Circuit

The Maxim Integrated MAX806CSA+T 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 with 5V-powered circuits.

This supervisory circuit ensures that the µP is reset to a known state upon power-up by providing a reset signal to the µP during power-up, power-down, and brownout conditions. The MAX806CSA+T features a 4.65V threshold voltage which makes it suitable for 5V-powered systems. Its reset output is guaranteed to remain in the logic low state for a minimum of 140ms after VCC has risen above the reset threshold level, ensuring that the system has sufficient time to stabilize before the processor starts operating.

The device comes in a compact 8-pin SOIC package, which makes it easy to incorporate into a wide range of applications without taking up significant board space. The MAX806CSA+T operates over a wide temperature range from -40°C to +85°C, which allows for deployment in environments with varying temperature conditions.

Key features of the MAX806CSA+T include:

• Precision monitoring of 5V power-supply voltages
• Fully integrated power-on reset circuit
• 140ms minimum power-on reset pulse width
• Active-low RESET output
• Low supply current of 15µA (typical)
• Wide operating temperature range
• Compact 8-pin SOIC package

Applications for the MAX806CSA+T are diverse and include systems that require a reliable reset signal for proper initialization, such as:

• Computers and servers
• Embedded systems
• Microcontrollers and digital systems
• Industrial equipment
• Portable/Battery-powered equipment

With its combination of features, the Maxim Integrated MAX806CSA+T is an essential component for ensuring the stable operation of microprocessor-based systems by providing a dependable supervisory function.