NCP380HMU21AATBG

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NCP380HMU21AATBG is an integrated power distribution switch, load driver, and gate drive in a Pericom Semiconductor package. It is designed to provide an efficient and accurate solution for power distribution systems. Specifically, it is suitable for automotive and industrial applications, where accuracy and reliability are key requirements.

Application Fields

NCP380HMU21AATBG is used as an integrated switch for power distribution systems in automotive and industrial applications. Automotive applications include all types of automotive systems and components such as ECU, engine management systems, lights, safety systems, and HVAC systems. Industrial applications include power conversion, power management, and electrical distribution systems.

Working Principle

The working principle of NCP380HMU21AATBG is based on the use of an on-chip high-side and low-side MOSFET driver. The on-chip driver has a range of output capability: up to 24V, 2A current sourcing, or up to 20V, 1A sinking. The driver is controlled by a digital input, which can be externally inputted via a GPIO pin.

The switch terminal of the NCP380HMU21AATBG can generate a high-side and low-side block voltage. This block voltage can be used to switch external components such as a relay or optocoupler. The NCP380HMU21AATBG also provides an active reset circuit for power distribution systems.

When the GPIO pin is set to high, the driver is enabled and the power can be switched from the high-side to the low-side with an external component. When the GPIO pin is set to low, the driver is disabled, and the power remains on the high-side.

In order to ensure accurate switching and to protect the system from overloads, the NCP380HMU21AATBG features a thermal protection circuit to prevent overheating. The thermal protection circuit is composed of an internal temperature sensing element, an over-temperature comparator, and a power limiting circuit.

The NCP380HMU21AATBG provides a current limiting and temperature pre-warning control function. The current limit threshold of the device is adjustable, allowing system designers to set the limit according to the needs of the application.

Conclusion

In conclusion, the NCP380HMU21AATBG is an integrated system power distribution IC, providing an efficient and accurate solution for power distribution systems. It features an on-chip MOSFET driver, an active reset circuit, and a thermal protection circuit for accurate switching and overload protections. The current limit threshold of the device is adjustable, allowing system designers to set the limit according to their needs.

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