Microchip Technology, Inc. Voltage Supervisor IC MCP120T-315I/SN

The MCP120T-315I/SN is a voltage supervisory circuit designed to ensure that microcontrollers remain in a reset state until the supply voltage stabilizes at an appropriate level. This device is capable of monitoring supply voltages in 3V, 3.3V, and 5V systems, with seven selectable voltage trip points. It features an active low RESET pin with an open drain output, and for the MCP130 variant, an internal pull-up resistor of 5 k,Ѷ is included. The MCP120T-315I/SN asserts the RESET signal when the voltage on the VDD pin falls below the designated trip point, providing protection against brown-out conditions. The device typically holds the RESET signal for 350 ms after the supply voltage reaches the trip point, ensuring reliable operation during power fluctuations. It operates with a typical current of 45 ¬µA and has a temperature range suitable for industrial applications, from -40¬8C to +85¬8C. The maximum operating voltage is 7.0V, with a storage temperature range of -65¬8C to +150¬8C. Engineers considering this product will find it suitable for applications requiring precise voltage monitoring and reset functionality in microcontroller systems.