U2008B-MFP

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The U2008B-MFP is an effective multi-functional programmable protection IC specialized for motor applications such as motor starters, UPS systems, electric pumps andelevators. It combines dual integrated high-efficiency gate drivers, offline PFC pre-regulators and comprehensive P/N/H protections on a single chip. This versatile combination of features not only simplifies device design, improves system performance, but also reduces system cost. In this article, the application field and working principles of U2008B-MFP are introduced in detail.

Application Fields

The U2008B-MFP is an integrated IC specially designed for motor applications. Most motor controllers should include multiple protection functions to guarantee reliable operation of the motor. The U2008B-MFP provides functions such as overvoltage protection, undervoltage protection, overcurrent protection and overheat protection. The device also includes a built-in MOSFET dual gate drive, which can use a single chip to build a powerful motor drive IC. Therefore, U2008B-MFP is particularly suitable for motor drivers and controllers, especially in applications such as motor starters, UPS systems, electric pumps and elevators. In addition, the device includes an energy-saving PFC pre-regulation function, which can not only reduce the system cost, but also improve the power conversion efficiency.

Working Principle

The U2008B-MFP combines multiple protection, PFC pre-regulation and MOSFET dual gate drive into one chip, as detailed below.

Protection Functions

The U2008B-MFP has four protection functions. These are overvoltage protection (OVP), undervoltage protection (UVP), overcurrent protection (OCP) and overtemperature protection (OTP). These four protections must be implemented to provide reliable operation of the motor. Usually, these four protection functions will be configured to prevent any fault condition of the motor. For example, when the input voltage is too high, OVP will cut off the power source to avoid any accident; UVP will prohibit the user from connecting the power source when the voltage is too low; OCP will avoid excessive current from being supplied to the motor, and OTP will avoid any potential damage from overheating of the motor.

PFC Pre-Regulation

The U2008B-MFP also includes an integrated PFC pre-regulator, which can reduce the system cost and improve the power factor of the system. The PFC pre-regulation function of U2008B-MFP can work on the full range of common AC voltage, and the output of PFC pre-regulator is a stable DC voltage. The pre-regulated DC voltage can be used as the source of power supply for the components of the power system, which can greatly improve the conversion efficiency of the power system.

MOSFET Dual Gate Drive

The U2008B-MFP also includes a built-in MOSFET dual gate drive. The dual gate drivers are designed for high-efficiency motor drive applications, such as motor starters, UPS systems, pumps and elevators. This MOSFET dual gate drive can switch two MOSFETs at the same time, and the maximum output current is 400mA. It has a built-in compensation circuit for current regulation and over-current protection, as well as a slew rate control circuit for voltage control.

Conclusion

In conclusion, the U2008B-MFP is an effective multi-functional programmable protection IC specialized for motor applications. It provides multiple protection functions such as OVP, UVP, OCP and OTP. It also includes a built-in PFC pre-regulation function and a MOSFET dual gate drive. As such, the U2008B-MFP is particularly suitable for motor controllers, motor starters, UPS systems, electric pumps and elevators.

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