L6205PD

PMIC - Motor Drivers, Controllers

The L6205PD is a power management integrated chip that is used in controlling, driving and managing the motors in consumer and commercial appliances. This article will introduce its application field and working principle.

Application Field

The L6205PD is suitable for use in small-medium sized motors and drive circuit applications, such as heating/ventilation systems, air conditioners, robotic motion, vending machines and other equipment. This power management IC provides power management function, such as guaranteeing a minimum voltage to the motor, detecting overvoltage and overcurrent faults, and protecting the motor from actuation under power fault conditions.

Besides, L6205PD also provides several functions that can help the motor work more efficiently. For instance, it can reduce the number of power storing components as well as the circuitry complexity of the drive circuit, thus saving space and cost. The adjustable under-voltage protection history delay can be suitable for many scenarios, and the thermal shut down characteristic can better protect the motor from extreme heat.

Working Principle

The L6205PD provides a 3-phase bridge driver with integrated power MOSFETs, allowing for efficient and simple control of motors. It can operate at a minimum low voltage of 4 V, offering good protection under power shortage conditions. Moreover, it has steady state thermal protection allowing for a safe and effective operation at maximum power.

The built-in wide range of power supply regulation enables accurate current sensing and control, and the output pins can be used to provide speed control, position control and load current monitoring. Besides, the current regulation loop and protection can help to adjust the motor speed and shorten the turn-on time, providing improved motor performance.

Apart from the features described above, the L6205PD also comes with additional features, such as the programmable dead time in each of the power output channels and a supply current limitation. These features provide an assurance for the performance of the motor control applications, and a high reliability for the safety of the equipment.

Conclusion

The L6205PD is a convenient, high-performance and reliable power management IC applicable to motor control applications. It can provide plenty of functions, such as providing a minimum voltage guarantee, detecting overvoltage and overcurrent faults, offering current sensing and control features and improved motor performance. With the implementation of the L6205PD, the motor control applications can be more reliable and efficient.