ON Semiconductor CAT810TSDI-T3 Supervisory Circuit

The ON Semiconductor CAT810TSDI-T3 is a precision supervisory circuit designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. This device ensures that the system's microprocessor or digital system initializes in the correct state and operates reliably. It is a crucial component for applications where consistent and accurate monitoring of the power supply is essential.

Featuring a 3-pin SOT-23 package, the CAT810TSDI-T3 is compact and suitable for space-constrained applications. It offers a fixed threshold voltage of 4.38V, which is ideal for systems operating at 5V power supply levels. The device boasts a low supply current of 15 µA, making it an energy-efficient choice for portable and battery-powered devices.

One of the key features of the CAT810TSDI-T3 is its precision monitoring capability. It has a tight threshold accuracy of ±2.5%, ensuring reliable reset activation even under varying conditions. The device also includes a built-in delay time of 140 ms (minimum) before issuing a reset signal after VCC has risen above the threshold level, preventing false triggering due to transient voltage spikes.

The reset output of the CAT810TSDI-T3 is active low and is guaranteed to remain valid down to VCC = 1.0V. This feature ensures that the system can handle brown-out conditions effectively. Additionally, the device is designed with immunity to short VCC transients, further enhancing its reliability in unpredictable environments.

ON Semiconductor's CAT810TSDI-T3 is an ideal solution for microcontroller power supply monitoring, computers, controllers, intelligent instruments, portable/battery-powered products, and other digital systems that require precise and reliable voltage monitoring. Its robust design and precise threshold accuracy make it a dependable component for safeguarding your system's integrity.

Overall, the CAT810TSDI-T3 supervisory circuit from ON Semiconductor is a small, power-efficient, and highly accurate device that provides essential protection for digital systems, ensuring that they operate without interruption and maintain data integrity during power fluctuations.