L9930PD

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The L9930PD is a highly integrated motor controller in Power Management Integrated Circuit (PMIC) designed for brushless DC (BLDC) motor and Permanent Magnet Synchronous Motor (PMSM) applications. It provides a low cost and reliable solution to drive a motor from a 12V battery or 5V-20V motor power supply. The device employs closed loop control and provides protection against overcurrent and overload.

The L9930PD is specially optimized for BLDC, Hall Effect Sensors and PMSM applications. It integrates power supplies, current sensors, voltage measurement, current limits, and microcontroller-based closed loop control. The device has a dynamic response for very precise speed control and is designed for higher efficiency. Its wide range of current sensing parameters, like dynamic current gain and current offset, enable excellent low-speed control of BLDC motors.

The L9930PD uses a voltage regulation loop (VRL) to monitor and regulate input and output voltages in all operating modes, resulting in a fast, stable, and precise voltage regulation. To prevent current over shoot, a dual-loop pulse width modulation (PWM) circuit, based on the peak current limit, is used. The circuit also ensures a fast response time and high accuracy over a wide range of temperatures.

The L9930PD also integrates an advanced Hall-effect sensor interface, allowing the device to be used with both Hall-effect and encoder-type sensors. The device includes an open and closed loop control to enable high performance motor drive capability. With open loop control, a wide range of electrical and mechanical parameters may be tuned to enable efficient operation of the motor. The closed loop control allows for precise adjustment of the motor’s speed and position.

The L9930PD also offers several protection features, including over-temperature protection, reverse thermal protection, and excessive current protection. This device is optimized for both high efficiency and high reliability motor drive applications. It is designed to meet the requirements of various applications, including but not limited to Automotive, Electronics, Robotics, and Energy Conversion systems. The device is also suitable for industrial automation, medical equipment, and renewable energy systems.

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