Maxim Integrated MAX6804US26D3+T Microprocessor Reset Circuit

The MAX6804US26D3+T is a high-quality microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require voltage monitoring. This device is particularly suitable for portable and battery-powered applications due to its low power consumption.

This supervisory circuit ensures that the microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. The MAX6804US26D3+T asserts a reset signal whenever the VCC supply voltage falls below the factory-set reset threshold level of 2.63V. The reset signal remains asserted for a minimum reset timeout period of 140ms after VCC rises above the reset threshold, ensuring that the system has stabilized before the processor starts operating.

Key features of the MAX6804US26D3+T include:

• Voltage Monitoring: Precision monitoring of 2.63V supply voltages.
• Reset Timeout: Minimum of 140ms reset timeout period.
• Low Power Consumption: Ideal for battery-operated applications.
• Package Type: Supplied in a compact SOT-143 package.
• Temperature Range: Operates over an extended temperature range of -40°C to +125°C.
• No External Components: Designed to work without the need for external resistors or capacitors, simplifying design and reducing system cost.

The MAX6804US26D3+T is provided in a small, 4-pin SOT-143 surface-mount package, making it an excellent choice for space-constrained applications. The device is also available in tape and reel format, denoted by the '+T' suffix, which makes it suitable for automated pick-and-place assembly processes, thereby reducing manufacturing time and cost.

Overall, the Maxim Integrated MAX6804US26D3+T microprocessor reset circuit is a reliable and efficient solution for system designers looking to enhance system reliability and performance through precise voltage monitoring and reset functions.