LB11970FV-MPB-E

Introduction

PMIC - Motor Drivers, Controllers are a type of integrated circuit (IC) that provides direct control of power systems using a single sub-unit. These controllers have a built-in power management and control mechanism, enabling energy savings and multi-functional features. The LB11970FV-MPB-E is a 3-phase brushless DC motor driver IC created by Sanken Electric Co., Ltd. It is mainly used in home appliances, vehicle systems, and HVAC appliances for vibration and cooling fans.

Application Field

The LB11970FV-MPB-E is a 3-phase motor driver IC that is suitable for operating speeds ranging from 0 to 4200 rpm. One of its main advantages is that it requires minimum external components to operate. This type of IC is particularly useful in home appliances, such as air conditioners, refrigerators, washing machines, and dishwashers. The LB11970FV-MPB-E can also be used in automotive applications, including car interior cooling/heating systems, active grille shutters, windshield wipers, and automatic transmission systems. Furthermore, it is also used in HVAC appliances, such as vibration and cooling fans.

Working Principle

The LB11970FV-MPB-E applies the PWM (pulse width modulation) method for controlling the 3-phase brushless DC motors. Its operation voltage is 16 or 26 V and its current is up to 6A (under 25℃). This type of IC also uses a rotation speed detection system, enabling users to control the speed and acceleration of the motor. It also has a two-level current control system which enables more accurate motor control.

The LB11970FV-MPB-E is equipped with overcurrent protection and automatic restart functions to ensure its reliable operation. In addition, it also has a thermal shutdown function that prevents the IC from overheating and an impediment detection function to protect the mechanical parts of the motor.

Conclusion

The LB11970FV-MPB-E is a 3-phase brushless DC motor driver IC that is mainly used in home appliances and vehicle systems for vibration and cooling fans. Its advantages are that it requires minimum external components to operate and includes features such as PWM control, current control, overcurrent protection, automatic restart and thermal shutdown. The LB11970FV-MPB-E can also be used in HVAC appliances, making it a versatile way to control motors.