Brushless 20 Click Board™

Product Code: MIKROE-5294

How Does The Brushless 20 Click Board™ Work? The Brushless 20 Click Board™ as its foundation uses the DRV8313, a fully integrated three-phase BLDC motor driver from Texas Instruments. The highly integrated DRV8313 comes with PWM/enable control interface, wide voltage operating range, an integrated 10mA LDO, and robust on-chip protection features. Low RDSON and efficient switching algorithms ensure excellent thermal performance and high drive capability. This Click board™ offers an energy-saving solution and quiet motor operation for brushless DC (BLDC) motors used in various applications. Each output driver channel consists of N-channel power MOSFETs configured in a 1/2-H-bridge configuration. Control pins can be accessed through the I2C interface and the PCA9538A port expander, with which the states of those pins, alongside the state of the output terminals, can be directly controlled. The PCA9538A also allows choosing the least significant bit (LSB) of its I2C slave address by positioning SMD jumpers labelled as ADDR SEL to an appropriate position marked as 0 and 1, alongside its interrupt and Reset features routed to the INT and RST pins of the mikroBUS™ socket.

The DRV8313 is active unless the SLP pin, routed to the CS pin of the mikroBUS™ socket, is brought to a low logic state. The charge pump and output FETs are disabled in sleep mode, alongside the internal LDO regulator. The DRV313 is automatically brought out of sleep mode if SLP is brought to a logic high state. This board also supports an external power supply for the motor, which can be connected to the input terminal labelled as VM and should be within the range of 8V to 60V, while the BLDC motor coils can be connected to the terminals labelled as 1, 2, and 3. The Brushless 20 Click Board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to 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 Brushless Applications Can be used for driving three-phase brushless DC motors up to 2A output current rating On-board modules DRV8313 - three-phase BLDC motor driver from Texas Instruments Key Features Triple 1/2 H-bridge driver, high current drive capability, low MOSFET ON resistance, integrated protection features, sleep mode for standby operation, and more Interface I2C Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V PINOUT DIAGRAM This table shows how the pinout of the Brushless 20 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 NC Reset RST 2 RST INT 15 INT Interrupt Sleep Mode SLP 3 CS RX 14 NC NC 4 SCK TX 13 NC NC 5 MISO SCL 12 SCL I2C Clock NC 6 MOSI SDA 11 SDA I2C Data Power Supply 3.3V 7 3.3V 5V 10 5V Power Supply Ground GND 8 GND GND 9 GND Ground ONBOARD SETTINGS AND INDICATORS Label Name Default Description LD1 PWR - Power LED Indicator JP1 VCC SEL Left Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V JP2-JP3 ADDR SEL Left I2C Address Selection 0/1: Left position 0, Right position 1 BRUSHLESS 20 CLICK ELECTRICAL SPECIFICATIONS Description Min Ty