ON Semiconductor CAT811REUS-T Voltage Supervisor

The CAT811REUS-T from ON Semiconductor is a high-performance microprocessor (μP) supervisory circuit designed to keep a system's voltage within operational limits. This precision voltage supervisor is an essential component for systems that require a reliable and stable operation, ensuring that the μP and other critical circuit elements are reset properly during power-up, power-down, or brown-out conditions.

With its low power consumption and compact SOT-143 package, the CAT811REUS-T is ideal for portable and space-constrained applications. It is specifically tailored for battery-powered electronics where power efficiency is crucial. The device offers a factory-trimmed reset threshold voltage, which is pre-set at 4.38V, providing the accuracy needed for sensitive electronic equipment.

The CAT811REUS-T features a built-in manual reset input, which allows for a system reset to be initiated at any time by the user or another system component. This manual reset capability provides an additional layer of system control and security, allowing for immediate response to system anomalies or for routine system maintenance.

Key features of the CAT811REUS-T include:

• Low power consumption, ideal for battery-operated devices.
• Precision monitoring of 3V, 3.3V, and 5V supply voltages.
• 140 ms minimum reset pulse width, which ensures a proper system reset.
• Active low reset output, which is guaranteed to be in the correct state for Vcc down to 1.0V.
• Temperature range of -40°C to +85°C, suitable for industrial applications.
• Watchdog timer functionality, which provides an additional layer of system reliability.

The device's tight reset threshold accuracy and robust feature set make it an excellent choice for a wide range of applications, including microcontroller systems, computers, controllers, intelligent instruments, portable electronics, and communication equipment. The CAT811REUS-T's combination of features ensures that electronic systems are protected against unpredictable voltage fluctuations, contributing to the longevity and reliability of the product it is safeguarding.

With the CAT811REUS-T, ON Semiconductor continues its commitment to providing innovative circuit protection solutions that meet the demands of modern electronic systems.