Maxim Integrated MAX803SEUR+T Microprocessor Reset Circuit

The Maxim Integrated MAX803SEUR+T is a highly reliable microprocessor (μP) supervisory circuit designed to monitor power supplies in μP and digital systems. It provides a crucial function by ensuring that the μP boots up in a predictable state every time. This supervisory circuit is particularly useful in managing system errors and uncertainties during power-up, power-down, and brown-out conditions.

With a compact SOT-23 package, the MAX803SEUR+T is an ideal choice for space-constrained applications. Its small footprint does not compromise on performance, delivering precision monitoring of the power supply voltage with a factory-trimmed reset threshold level. This level of precision ensures that the device can cater to a variety of voltage requirements, making it versatile for numerous applications.

The device features an active-low reset output, which remains asserted for a minimum of 140ms after VCC has risen above the reset threshold level. This reset delay provides ample time for the system to stabilize before the processor starts, thereby preventing any erroneous operation. The reset output of the MAX803SEUR+T is guaranteed to be in the correct state for VCC down to 1.0V, which is particularly beneficial for low-voltage operations.

Another significant feature of the MAX803SEUR+T is its low supply current, making it an energy-efficient choice for battery-operated applications. The device's ability to operate over a wide temperature range of -40°C to +85°C is a testament to its robustness, making it suitable for industrial and automotive environments where temperature extremes are common.

Overall, the Maxim Integrated MAX803SEUR+T is a highly reliable and essential component for systems requiring effective power supply monitoring. Its precision, compact size, and low energy consumption make it an excellent choice for safeguarding μP systems across a broad spectrum of applications, from consumer electronics to automotive and industrial controls.