CDS003526-001

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Part Status:	Active

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CDS003526-001 is a high performance application specific integrated circuit dedicated to sensorless motor control. It is designed for low cost and low power consumption of motor Brushless DC (BLDC) and Permanent Magnet Synchronous Motor (PMSM). In the case where the rotor position is not known, CDS003526-001 can provide commutation signals to motor drive without any external device.The application field of CDS003526-001 is mainly in consumer market, such as electronic traction motor, power-assisted bicycles, intelligent scooters, household appliances, etc. The motor control device with its excellent performance is suitable for lawn mowers, pumps, stairs, vacuum cleaners, model aircraft, fans, and surveillance cameras.CDS003526-001 can control three-phase, four-phase, and five-phase motors. It is equipped with a hybrid digital phase-lock loop (PDL), which can make the motor maintain synchronous rotation. In addition, the device is based on advanced technology and integrated Total-Cycle-Time control, multi-speed pulse-following mode, intelligent frequency-hybrid open-loop control, and advanced FOC control methods.CDS003526-001 features low fuel consumption, low noise, and high efficiency. It offers cycle-by-cycle current limitation and protection features, as well as maximum output sustained torque. As a result, this device is especially viable for efficient, reliable, and low-cost motor performance. The device can accurately control the speed of the motor, allow the motor to start automatically, reduce the jerk when stop and automatically detect errors.The working principle of CDS003526-001 can be summed as follows: the power supply is cut off when the electricity is turned off, and the control signal is generated by the embedded processor. The processor calculates the optimal switching times for the three-phase motor using BLDC motor control technology, and provides corresponding switch control signals to the gate driver. Each problem in the system is processed by the designer known as commutation state FUSION logic and one or several parameters will be determined by the MCU. This logic then produces the voltage inputs to the gate drive and the gate drive is responsible for switching the transistors on/off in a timely manner in order to provide commutation.In conclusion, CDS003526-001 is a high performance application specific integrated circuit for motor control and it is mainly used for consumer market such as electronic traction motor, power-assisted bicycles, intelligent scooters, household appliances,etc. It can be configured for three-phase, four-phase, and five-phase motors and it offers cycle-by-cycle current limitation and protection features, as well as maximum output sustained torque. It works by cutting off the power supply when the electricity is turned off, and produces control signals by the processor, which will be fed to the gate driver in order to switch the transistors according to specific cycle for motor commutation.

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