3-Phase Motor Driver for N-Channel MOSFETs with Unique Charge Pump Regulation Technology
2023-04-21 21:03:24 By : admin
A4935KJP-T: An Introduction to 3-Phase IC Motor Drivers
Motor drivers play a crucial role in the operation of electric motors by controlling their speed, torque, and direction. A4935KJP-T is a 3-phase motor driver IC designed to drive N-channel external power MOSFETs. It enables precise, efficient, and reliable motor control, making it an ideal choice for various applications.
The A4935KJP-T is a high-performance motor driver IC that features a unique charge pump regulator, providing a full (>10V) gate drive for battery voltages down to 7V. It can operate with a reduced gate drive down to 5.5V and is perfect for use in battery-operated devices. The IC uses a bootstrap capacitor to provide the above-battery supply voltage required for N-channel MOSFETs.
The A4935KJP-T motor driver IC allows for full control over all six power FETs in the 3-phase bridge, allowing motors to be driven with either block commutation or sinusoidal excitation. It also includes an internal charge pump for the high-side drive that enables DC (100% duty cycle) operation. The power FETs in the 3-phase bridge are protected from shoot-through by integrated crossover control and resistor-adjustable dead time.
One of the standout features of the A4935KJP-T motor driver IC is the integrated current sense amplifier that allows bridge current to be measured. This uncommitted differential amplifier features a below-ground common mode range, making it ideal for use in low-side current sense applications. The gain and offset of the current sense amplifier can be defined by external resistors.
The A4935KJP-T motor driver IC is designed for a wide range of applications, including robotics, drones, and electric vehicles. Its compact size and high performance make it an excellent choice for consumer electronics and industrial applications. Additionally, it is easy to integrate into existing designs, making it an ideal solution for OEMs.
In conclusion, the A4935KJP-T motor driver IC is a reliable, efficient, and high-performance solution for 3-phase motor control. Its unique charge pump regulator and integrated current sense amplifier make it an excellent choice for various applications. It is an ideal solution for OEMs looking to enhance motor control in their products, and it is suitable for a wide range of industries.