DRV8823 H-Bridge 모터 드라이버 모듈 -SPI
(H-BRIDGE 12 CLICK)
개요
- 본 제품은 DRV8823 H-Bridge 모터 드라이버 모듈 -SPI입니다.
- SPI인터페이스를 가진 DRV8823 칩을 기반으로 디자인된 제품입니다.
- 채널당 1.5A 까지 처리가 가능합니다.
특징
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HOW DOES IT WORK?
H Bridge 12 Click is based on the DRV8823, a four-bridge serial interface motor driver from Texas Instruments. Internally, the motor driver consists of four NMOS H-Bridges, a micro-stepping indexer, and various fault-protecting features. The motor driver is fully protected against overcurrent, overtemperature, undervoltage, and comes in a thermally-enhanced package. It can control motors that operate in an 8V to 32V voltage range, with up to 1.5A of current per winding. For this, it uses an internal charge pump for the gate drives. Eight current levels set through the serial interface allow micro-stepping with bipolar stepper motors.
H Bridge 12 Click uses a simple 3-Wire SPI serial interface to communicate with the host MCU. In addition, this Click board™ uses some other pins from the mikroBUS™ socket, such as the RST pin for the device reset. The motor driver outputs can be disabled with the STB's pin LOW logic state while resetting the serial interface. Another neat feature is sleep, which can be activated with logic LOW on the SLP pin of the mikroBUS™ socket. There are two precision potentiometers labeled VREFA and VREFC. The VREFA supplies the referent voltage for setting the current trip threshold for bridges A and B, while the VREFC supplies the referent voltage for setting the current trip threshold for bridges C and D.
H Bridge 12 Click comes with screw terminals for connecting an external motor power supply, labeled with ground and VM. The motors can be connected to 8 terminals appropriately labeled for every single motor output channel. The motor driver supports Brushed DC, Brushless DC, and Stepper motors.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. 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 Brushed Applications Can be used for the development of printers, scanners, office automation, factory automation, and more On-board modules DRV8823 - a 4-bridge serial interface motor driver from Texas Instruments Key Features Four half-bridges for broad operating supply voltage range, up to 1.5A of current per winding, protection features, additional current-set threshold potentiometers, low power consumption, internal charge pump for gate drivers, and more Interface SPI Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V