MC33887DHR2

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The MC33887DHR2 is an advanced power management integrated circuit (PMIC) designed specifically for motor drive applications. It provides a cost-effective solution for high-performance motor control applications. The MC33887DHR2 combines integrated motor control functions for brushless motor, brushed motor and inductive actuator applications. It also includes multiple channels of full-featured pulse-width modulation (PWM) controller and the Pulse Position Modulation (PDM) drive.

In addition to its integrated motor drive functions, the MC33887DHR2 provides power management features such as integrated high-speed MOSFET switches, high-speed diode-bridge rectifier, and 400mV programming voltage regulator. It also includes integrated Analog-to-Digital (ADC), current sensing, temperature sensing, fault diagnosis and protection functions. The integrated voltage regulator enables effective power management for low-voltage applications.

Application Field

The MC33887DHR2 is suitable for a variety of motor control and power management applications, including: Electric bicycles, Robotics, Home appliances, Automotive powertrain applications, Brushless DC (BLDC) motor drives and Home appliances.

Electric bicycles are becoming increasingly popular in the world today. The MC33887DHR2 offers a cost-effective and efficient solution to power and control motors used in high performance electric bikes. The integrated PWM/PDM controllers enable high-efficiency, high-performance and long-riding capability.

Robotics is another application field in which the MC33887DHR2 is widely used. It is the perfect solution for powering and controlling motors in robotic applications, such as motion control, vision tracking and pick and place operations. Its integrated current sensing and temperature sensing features enable accurate control and robust performance for a variety of robotic applications.

The MC33887DHR2 is also used in home appliances and automotive powertrain applications. It is widely used to power and control motors in washing machines, dishwashers, refrigerators and air conditioners. It is also used in automotive powertrain applications such as fuel injection and ignition control.

Working Principle

The MC33887DHR2 is based on a pulse-width modulation (PWM) and pulse position modulation (PDM) control architecture. It combines multiple integrated power management and motor drive channels in a single package, providing high efficiency and robustness. The integrated MOSFET switches and bridge rectifier facilitate the power supply and provide the required protection.

The MC33887DHR2 integrates a dedicated low-voltage PWM/PDM generator. The PWM/PDM generator is used to generate pulse-width-modulated signals for controlling motors in applications such as brushless DC (BLDC) motor drives, brushed motor drives and inductive actuators. The integrated low-voltage PWM/PDM generator can be used to drive motors with up to 400mA of current.

The MC33887DHR2 also features an integrated current sensing, temperature sensing, fault diagnosis and protection circuit. The integrated current sensing feature enables the MC33887DHR2 to monitor and control the current of the motor drive, ensuring safe and reliable operation. The integrated temperature sensing feature is used to detect and identify any temperature anomalies that may occur in the motor drive. The integrated fault diagnosis and protection circuit helps to detect any faults in the system and take corrective action.

The MC33887DHR2 provides a highly efficient and low-cost solution for motor control and power management applications. It is the perfect solution for a wide range of applications, from electric bicycles and robotics to home appliances and automotive powertrain applications.

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