MC33887DWB

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PMIC - Motor Drivers, Controllers is the main application field for the MC33887DWB. It is a multi-channel half-bridge driver specifically designed for driving multiple DC motors or actuators in the automotive, industrial and consumer markets. It works by providing two independent high-side MOSFET outputs, as well as two independent low-side MOSFET outputs, allowing for bi-directional motor control.

The MC33887DWB is capable of driving up to four DC motors or solenoids, allowing a wide range of motion solutions to be enabled in a variety of applications. Its operating range is between 4.5V and 18V, enabling it to be used in more demanding environments. It is highly integrated, containing a motor driver, current sense Amplifier and comparator circuits, thus eliminating the need for additional components.

The low on-resistance of the MOSFET enables high current with low power dissipation. Current sensing capabilities ensure accurate and efficient motor control. Diagnostics pins provide an indication of faults and an overview of the state of the motor. Advanced protection features are included, such as over-temperature and short-circuit protection to ensure reliable and robust system performance.

In addition to driving motors, the MC33887DWB also provides Pulse Width Modulation (PWM) and low-voltage logic (LLC) control with selectable slew rates. The PWM provides the functionality to control the speed of motor operation. The LLC control allows the motor to be set in either a high or low position without the need for a separate control line. It also enables the motor to be used as a linear actuator, allowing for smooth transitions between speed, position and force control.

The MC33887DWB also features a microprocessor-based architecture for efficient system control. The integrated microcontroller provides enhanced flexibility and allows the user to easily configure the system to match their desired application. Its advanced fault management functionality eliminates the need for manual intervention and provides improved reliability in environments where fault detection is critical.

The MC33887DWB meets the standards of the automotive industry, making it suitable for applications such as power windows and door locks, as well as more complex robotic control applications. It also meets requirements for consumer and industrial applications where high levels of reliable performance are required. The MC33887DWB is a cost-effective solution for those looking for a reliable motor control unit with excellent flexibility and enhanced protection features.

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