A3968SLB

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A3968SLB is a type of PMIC (Power Management Integrated Circuit) motor drivers, controllers. It is widely used in automotive applications such as headlights, wiper motors, fan motors, fuel pumps, and more. A3968SLB is a low-voltage, high-current brushless DC motor controller that offers a wide range of features and performance. It is a highly integrated motor control solution with a maximum output current capability of 4A.

The A3968SLB is a three-phase motor driver with a built-in sensed coreless motor commutation algorithm. It also provides a close-loop torque control algorithm capable of constant-torque performance. The A3968SLB also integrates 2-phase voltage regulation, current or torque mode control and speed monitoring. It provides both analog and digital input so that the user can easily control the motors.

The A3968SLB uses two power stages made up of two separate MOSFETs. These two MOSFETs are responsible for the bi-directional side control of the three-phase motor. The A3968SLB also has two analog comparison channels, which allow the user to use an analog to digital converter (ADC) to measure the current or torque of the motor. In addition, the A3968SLB can operate in either PWM or open loop modes.

Moreover, the A3968SLB uses a sophisticated sensing system that measures motor direction, speed, and torque. The coreless motor commutation is performed via an internal PLL, anti-creep logic, and MOSFET current mirror technology. The A3968SLB also provides protection features, such as thermal shutdown protection, over current protection, and over voltage protection.

In summary, the A3968SLB is a great solution for controlling and driving three-phase motors in automotive applications. It provides a robust and efficient solution for driving brushless DC motors and is a great choice for applications that require a high current output capability, sophisticated sensing system, and close-loop torque control algorithm.

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