Microchip Technology's MCP130T-450I: Voltage Supervisor

The MCP130T-450I from Microchip Technology is a highly reliable voltage supervisor device designed to keep microcontroller systems safe by providing a reset signal during power-up, power-down, or brown-out conditions. This essential component ensures that the microcontroller, or other CPU systems, start up in a known state every time.

With a precision voltage threshold of 4.5V, the MCP130T-450I is suitable for 5V systems, providing a stable monitoring solution to safeguard system integrity. When the monitored voltage falls below the threshold, the MCP130T-450I asserts a reset signal, which remains active until the voltage recovers to an acceptable level, plus a specified time delay to ensure system stability.

The device features an active-low, open-drain reset output, which allows for straightforward interfacing with a variety of microcontrollers and digital systems. The open-drain configuration also enables wired-OR connections for more complex system requirements. Additionally, the MCP130T-450I has an accurate reset threshold and is capable of operating over a wide temperature range of -40°C to +125°C, making it a versatile choice for challenging environments.

Key features of the MCP130T-450I include:

• 4.5V precision voltage monitoring suitable for 5V systems
• Active-low, open-drain reset output
• Immunity to short voltage transients
• Low supply current of 5 µA (typical), ideal for power-sensitive applications
• Temperature range from -40°C to +125°C
• Holds the processor in reset until the system voltage reaches a stable operating level and keeps it in reset for at least 350ms after that

The MCP130T-450I voltage supervisor comes in a 3-pin TO-92 package, which is widely used and easy to integrate into existing designs. Its compact form factor and low power consumption make it an excellent choice for portable and battery-operated applications, as well as automotive, industrial, and consumer electronics where reliable system operation is critical.

By integrating the MCP130T-450I into your design, you can ensure that your system benefits from the robust protection and stability that Microchip Technology is known for, keeping your applications running smoothly and reliably.