The Brushless 24 Click Board™ is based on the DRV10866, a fully integrated three-phase BLDC motor driver from Texas Instruments. The DRV10866 motor driver comes with integrated power MOSFETs with current drive capability up to 800mA peak (based on populated 3.9k resistor), specifically designed for low-noise energy-saving fan motor drive applications connected to the terminals labelled as U, V, W, and COM. It provides PWM/enable control interface (PWM pin of the mikroBUS™ socket), wide operating voltage range, robust on-chip protection features, low RDSON, and efficient switching algorithms to ensure excellent thermal performance and high drive capability.
The DRV10866 implements a 150° commutation (sensorless BEMF control scheme) for a 3-phase motor alongside a synchronous rectification mode of operation that achieves increased efficiency for motor driver applications. In addition, the DRV10866 has a frequency generator pin (FG) that outputs a 50% duty cycle of PWM waveform in the normal operation condition. The FG represents the motor speed and phase information, detectable through an interrupt pin of the mikroBUS™ socket and a blue LED indicator marked as FG. During the Start-Up sequence, the FG output will stay at high impedance until the motor speed reaches a certain level and BEMF is detected, while during lock protection conditions, the FG will remain high until the motor restarts and the Start-Up process is completed.
Apart from this function, the DRV10866 can also output either full FG or half of the FG to indicate motor status with open-drain output through the FGS SEL selection jumper. When FGS SEL is placed in a VCC position, the FG output frequency is half that when the jumper is set to a GND position. The DRV10866 has multiple built-in protection blocks, including UVLO, overcurrent protection, lock protection, and thermal shutdown protection.
The Brushless 24 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.
| Type | Brushless |
| Applications | It can be used for low-noise fan motor drive applications |
| On-board modules | DRV10866 - three-phase BLDC motor driver from Texas Instruments |
| Key Features | Sensorless BLDC driver, high current drive capability, low MOSFET ON resistance, integrated protection features, 150° commutation, synchronous rectification PWM operation, selectable FG, and more |
| Interface | PWM |
| Compatibility | mikroBUS |
| Click board size | M (42.9 x 25.4 mm) |
| Input Voltage | 3.3V or 5V |
This table shows how the pinout for the Brushless 24 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 | PWM | PWM Signal | |
| NC | 2 | RST | INT | 15 | INT | Motor Speed | |
| NC | 3 | CS | RX | 14 | NC | ||
| NC | 4 | SCK | TX | 13 | NC | ||
| NC | 5 | MISO | SCL | 12 | NC | ||
| NC | 6 | MOSI | SDA | 11 | NC | ||
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | 5V | Power Supply |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| LD2 | FG | - | Motor Speed LED Indicator |
| JP1 | VCC SEL | Right | Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V |
| JP2 | FGS SEL | Right | Frequency Generator Control Selection VCC/GND: Left position VCC, Right position GND |
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
| Output Current | - | 800 | - | mA |
We provide a library for the Brushless 24 Click and a demo application (example), developed using MikroE compilers. The demo can run on all the main MikroE development boards.
The package can be downloaded/installed directly from NECTO Studio The package Manager (recommended), downloaded from our LibStock™ or found on MikroE Github account.
Library Description
This library contains API for the Brushless 24 Click Board™ driver.
Key functions
brushless24_set_duty_cycle Brushless 24 sets PWM duty cycle.
brushless24_pwm_start Brushless 24 start PWM module.
brushless24_get_int_state Brushless 24 get INT pin state.
Example Description
This application is a showcase of controlling the speed of the brushless motor using the Brushless 24 Click Board™.
void application_task ( void )
{
static int8_t duty_cnt = 1;
static int8_t duty_inc = 1;
float duty = duty_cnt / 10.0;
brushless24_set_duty_cycle ( &brushless24, duty );
log_printf( &logger, "> Duty: %d%%rn", ( uint16_t )( duty_cnt * 10 ) );
Delay_ms( 1000 );
if ( 10 == duty_cnt )
{
duty_inc = -1;
}
else if ( 0 == duty_cnt )
{
duty_inc = 1;
}
duty_cnt += duty_inc;
}
The full application code, and ready to use projects can be installed directly from NECTO Studio. The package Manager (recommended), downloaded from our LibStock™ or found on MikroE Github account.
Other MikroE Libraries used in the example:
Additional Notes and Information
Depending on the development board you are using, you may need USB UART Click Board™, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroE compilers.
The Brushless 24 Click Board™ is supported with mikroSDK - MikroE Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
- attachments: [{"download_file":[{"download_file":"Brushless 24 Click Board™ Schematic"}],"download_filetype":[{"download_filetype":"pdf"}]}] - warranty: 12 months - brand: MikroE - manufacturer: Mikroelektronika d.o.o. - target_keyword: Brushless 24 Click Board - brands: gid://shopify/Metaobject/56256004319 - breadcrumbs: ["gid://shopify/Collection/447955239135","gid://shopify/Collection/241680580797","gid://shopify/Collection/241545248957","gid://shopify/Collection/279405199549"] - mpn: MIKROE-5478 - customhs_code: 847330 - detailed_description: {"type":"root","children":[{"type":"heading","level":3,"children":[{"type":"text","value":"How Does The Brushless 24 Click Board™ Work?"}]},{"type":"paragraph","children":[{"type":"text","value":"The Brushless 24 Click Board™ is based on the DRV10866, a fully integrated three-phase BLDC motor driver from Texas Instruments. The DRV10866 motor driver comes with integrated power MOSFETs with current drive capability up to 800mA peak (based on populated 3.9k resistor), specifically designed for low-noise energy-saving fan motor drive applications connected to the terminals labelled as U, V, W, and COM. It provides PWM/enable control interface (PWM pin of the mikroBUS™ socket), wide operating voltage range, robust on-chip protection features, low RDSON, and efficient switching algorithms to ensure excellent thermal performance and high drive capability."}]},{"type":"paragraph","children":[{"type":"text","value":""}]},{"type":"paragraph","children":[{"type":"text","value":"The DRV10866 implements a 150° commutation (sensorless BEMF control scheme) for a 3-phase motor alongside a synchronous rectification mode of operation that achieves increased efficiency for motor driver applications. In addition, the DRV10866 has a frequency generator pin (FG) that outputs a 50% duty cycle of PWM waveform in the normal operation condition. The FG represents the motor speed and phase information, detectable through an interrupt pin of the mikroBUS™ socket and a blue LED indicator marked as FG. During the Start-Up sequence, the FG output will stay at high impedance until the motor speed reaches a certain level and BEMF is detected, while during lock protection conditions, the FG will remain high until the motor restarts and the Start-Up process is completed."}]},{"type":"paragraph","children":[{"type":"text","value":"Apart from this function, the DRV10866 can also output either full FG or half of the FG to indicate motor status with open-drain output through the FGS SEL selection jumper. When FGS SEL is placed in a VCC position, the FG output frequency is half that when the jumper is set to a GND position. The DRV10866 has multiple built-in protection blocks, including UVLO, overcurrent protection, lock protection, and thermal shutdown protection."}]},{"type":"paragraph","children":[{"type":"text","value":"The Brushless 24 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."}]},{"type":"heading","level":3,"children":[{"type":"text","value":"SPECIFICATIONS"}]},{"type":"paragraph","children":[{"type":"text","value":"Type\nBrushless\nApplications\nIt can be used for low-noise fan motor drive applications\nOn-board modules\nDRV10866 - three-phase BLDC motor driver from Texas Instruments\nKey Features\nSensorless BLDC driver, high current drive capability, low MOSFET ON resistance, integrated protection features, 150° commutation, synchronous rectification PWM operation, selectable FG, and more\nInterface\nPWM\nCompatibility\nmikroBUS\nClick board size\nM (42.9 x 25.4 mm)\nInput Voltage\n3.3V or 5V"}]},{"type":"heading","level":3,"children":[{"type":"text","value":"PINOUT DIAGRAM"}]},{"type":"paragraph","children":[{"type":"text","value":"This table shows how the pinout for the Brushless 24 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns)."}]},{"type":"paragraph","children":[{"type":"text","value":"Notes\nPin\nPin\nNotes\nNC\n1\nAN\nPWM\n16\nPWM\nPWM Signal\nNC\n2\nRST\nINT\n15\nINT\nMotor Speed\nNC\n3\nCS\nRX\n14\nNC\nNC\n4\nSCK\nTX\n13\nNC\nNC\n5\nMISO\nSCL\n12\nNC\nNC\n6\nMOSI\nSDA\n11\nNC\nPower Supply\n3.3V\n7\n3.3V\n5V\n10\n5V\nPower Supply\nGround\nGND\n8\nGND\nGND\n9\nGND\nGround"}]},{"type":"heading","level":3,"children":[{"type":"text","value":"ONBOARD SETTINGS AND INDICATORS"}]},{"type":"paragraph","children":[{"type":"text","value":"Label\nName\nDefault\nDescription\nLD1\nPWR\n-\nPower LED Indicator\nLD2\nFG\n-\nMotor Speed LED Indicator\nJP1\nVCC SEL\nRight\nLogic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V\nJP2\nFGS SEL\nRight\nFrequency Generator Control Selection VCC/GND: Left position VCC, Right position GND"}]},{"type":"heading","level":3,"children":[{"type":"text","value":"BRUSHLESS 24 CLICK ELECTRICAL SPECIFICATIONS"}]},{"type":"paragraph","children":[{"type":"text","value":"Description\nMin\nTyp\nMax\nUnit\nSupply Voltage\n3.3\n-\n5\nV\nOutput Current\n-\n800\n-\nmA"}]},{"type":"heading","level":3,"children":[{"type":"text","value":" "}]}]} - summary:Introducing the Brushless 24 Click Board™, the compact add-on board designed to effortlessly control brushless DC (BLDC) motors with any MCU. Whether you're a hobbyist or a professional, this powerful board is here to enhance your motor control applications.
At the heart of the Brushless 24 Click Board™ lies the DRV10866, an exceptional 3-phase sensorless motor driver from the renowned Texas Instruments. Equipped with integrated MOSFETs, this driver can handle peak currents of up to 800mA, delivering the power you need to drive your motors with precision.
Experience unparalleled efficiency with the Brushless 24 Click Board™. The DRV10866 features a cutting-edge 150° sensorless BEMF control scheme specifically designed for 3-phase motors. Additionally, its synchronous rectification mode optimizes operation, ensuring increased efficiency in motor driver applications.
Rest easy knowing that your motors are protected at all times. The Brushless 24 Click Board™ is equipped with multiple built-in protection circuits, including undervoltage, lock detection, voltage surge protection, and overtemperature safeguards. Your motors are in safe hands!
The Brushless 24 Click Board™ is supported by a mikroSDK-compliant library, offering a range of functions that simplify software development. No more complex coding or unnecessary hassle. Additionally, this Click board™ comes fully tested and ready to use on any system equipped with the convenient mikroBUS™ socket.
Looking to achieve low-noise fan motor drives? Look no further. The Brushless 24 Click Board™ is the perfect solution for your noise-sensitive applications. Enjoy smooth, reliable motor control and create a tranquil environment.
Upgrade your motor control projects today with the Brushless 24 Click Board™. Embrace efficiency, power, and convenience like never before. Order yours now!