MCP112T-450E/MB

PMIC - Supervisors refer to Power Management Integrated Circuit (PMIC) and supervisors, which are integrated circuit designed to monitor and control other chips in the system that may require power. PMIC is typically used to regulate the current, voltage and temperature of the system. They provide a range of control and monitoring signals for control of power devices (such as transistors), power supply, device power on/off, voltage and current scaling and others.

The MCP112T-450E/MB is an ultra-low power supervisor that provides five voltage- and temperature-independent, logic-controlled outputs for monitoring multiple power and voltage supply rails on an application board. It is an efficient and cost-effective solution for system designers looking to monitor one or more rails on the board, including voltage, current and temperature. Furthermore, the integrated thermal sensors provide temperature shut down and hysteresis to ensure the safe operation of the system.

It has a wide range of application fields such as general purpose circuits, industrial, automotive and aerospace applications, where robust and reliable power supply regulation is required. Furthermore, it also finds application in consumer, consumer electronics and energy/utilities as well.

The working principle of the MCP112T-450E/PM is based on the voltage monitoring, thermal protection and open/short circuit detection. The device includes a wide range of voltage levels from 0V to 8V on the two output pins, and a stringent monitoring of supply voltage, current and temperature through its integrated voltage and current sensing, as well as its integrated thermal sensing capability. The high accuracy, stable and fast measuring frequency, low power consumption and high immunity make the system reliable.

In case the supply voltage is over the determined threshold, the voltage detector starts the power management cycle and the control logic signals the voltage regulator to turn off the power supply. The device also offers protection against open and shorts circuit protection, which is needed when the system contains multiple power supply rails and requires monitoring at different voltage levels.

The integrated thermal sensing of the MCP112T-450E/MB provides temperature shut down and hysteresis to ensure the safe operation of the system. The temperature sensor monitors the board temperature and triggers a shutdown if it exceeds the specified thermal threshold. The hysteresis prevents the system from constantly triggering shut down during temperature excursions near the thermal shutdown threshold.

In conclusion, MCP112T-450E/MB is a voltage and temperature-independent power supervisor that provides five logic-controlled outputs for monitoring multiple power and voltage supply rails on an application board. Its wide range of application fields, robust performance and low power consumption make it an ideal choice for system designers. In addition, its integrated thermal sensing provides temperature shut down and hysteresis, improving the reliability of the system and protecting it from unnecessary over-temperature excursions.