3상 BLDC 모터 드라이버 모듈 -AMT49400
(BRUSHLESS 21 CLICK)
개요
- 본 제품은 3상 BLDC 모터 드라이버 모듈 -AMT49400입니다.
- 내장된 MOSFET을 가진 3상 sensorless BLDC 모터 드라이버 AMT49400 을 기반으로 디자인된 제품입니다.
- 4V-16V의 동작 전압을 가지고 있는 제품으로 모터 회전 속도는 PWM 입력에 듀티 사이클 명령을 주어 제어가 가능합니다.
- I2C 인터페이스를 통해서 모터 전압, 전류, 속도, 저항, 스타트업 프로파일등의 설정이 가능합니다.
특징
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HOW DOES IT WORK?
Brushless 21 Click as its foundation uses the AMT49400, a three-phase BLDC controller with integrated MOSFETs from Allegro Microsystems. The integrated field-oriented control (FOC) algorithm achieves the best efficiency and dynamic response and minimizes acoustic noise. Also, Allegro's proprietary non-reverse startup algorithm improves startup performance. The BLDC motor, connected to the terminals labeled as U, V, and W, will start towards the target direction after power-up without reverse shaking or vibration. The Soft-On Soft-Off (SOSO) feature gradually increases the current to the motor at ON command (windmill condition). It gradually reduces the current from the motor at the OFF command, further reducing the acoustic noise and operating the motor smoothly.
This Click board™ allows interface selection to communicate with MCU. The selection between PWM and I2C interface can be made by positioning SMD jumpers labeled as COMM SEL to an appropriate position. Note that all the jumpers' positions must be on the same side, or the Click board™ may become unresponsive. While the I2C interface is selected, setting motor-rated voltage, rated current, rated speed, resistance, and startup profiles are allowed via the EEPROM programmability. On the other side, the motor speed is controlled by applying a duty cycle command to the PWM input pin of the AMT49400.
Alongside the PWM pin from the mikroBUS™ socket, this Click board™ also has the Enable pin labeled as EN and routed to the CS pin of the mikroBUS™ socket to optimize power consumption used for power ON/OFF purposes. The FG pin, routed on the INT pin of the mikroBUS™ socket, provides motor speed information to the system, such as motor lock detection. This feature monitors the motor position to determine if the motor is running as expected. If a lock condition is detected, the motor drive will be disabled for 5 seconds before an attempted auto-restart.
This Click board™ can operate with both 3.3V and 5V logic voltage levels selected via the VIO SEL jumper. It allows for both 3.3V and 5V capable MCUs to use the communication lines properly. Additionally, there is a possibility for the AMT49400 power supply selection via jumper labeled as VBB SEL to supply the AMT49400 from an external power supply terminal in the range from 4V to 16V or with 5V from mikroBUS™ power rail. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
Type Brushless Applications Can be used for home appliances such as pumps and cooling fans, industrial equipment, and more On-board modules AMT49400 - three-phase BLDC controller with integrated MOSFETs from Allegro Microsystems Key Features Coding-free sensorless field-oriented control, quiet and quick startup, PWM/I2C interface, lock detection, optional closed-loop speed control, protection features, and more Interface I2C,PWM Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V,External