12V to 24V, 3-phase sensorless 180° sinusoidal BLDC motor driver 'DRV10987'
Suitable for fan and pump applications with low cost, low noise, and fewer external components. It incorporates a power MOSFET and continuously drives up to 2A of current. It supplies current to the motor with a minimum supply voltage of 6.2V. When the supply voltage exceeds 28V, it stops driving the motor to protect the circuit. Using a unique sensorless control scheme, it performs continuous sinusoidal drive, significantly reducing pure tones typically generated by rectification. The interface to the 'DRV10987' is simple and flexible. The motor can be directly controlled via PWM, analog, or I2C inputs. Motor speed feedback is provided simultaneously from both the FG pin and the I2C interface. The 'DRV10987' features a buck regulator that efficiently steps down the supply voltage to 5V for powering internal and external circuits. A 3.3V LDO is also available for powering external circuits. The I2C interface allows for reprogramming specific motor parameters in the registers, as well as programming the EEPROM to optimize performance for any application.
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basic information
■Motor operating voltage range: 6.2V to 28V ■Total driver H+L rDS(on): 250mΩ at TA = 25℃ ■Drive current: Continuous winding current 2A (3A peak) ■EMI management output PWM slew rate frequency can be set ■Initial position detection algorithm prevents reverse rotation at startup ■No external detection resistor required ■Flexible user interface options *I2C interface: Access to registers *Dedicated SPEED pin: Supports analog or PWM input *Dedicated FG pin: Provides TACH feedback *Spin-up profile customizable in EEPROM *DIR pin for forward/reverse control ■Built-in 5V, 100mA buck converter and 3.3V, 20mA LDO ■Standby current: 8.5mA ■Current consumption *Standby version (DRV10987S): 8.5mA *Sleep version (DRV10987D): 48μA ■Protection features *Overcurrent protection *Rotor lock detection *Voltage surge protection (AVS) *Under-voltage lockout (UVLO) *Over-voltage protection *Thermal warning/shutdown ■Enhanced thermal characteristics package
Price information
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Applications/Examples of results
Fan/ceiling fan, air purifier/humidifier, circulation fan for dryer, drainage/water supply pump, 3-phase BLDC/PMSM motors, etc.
Company information
Texas Instruments (Headquarters: Dallas, Texas, USA; Chairman, President, and CEO: Rich Templeton; Abbreviation: TI) supports customers in developing new electronic devices that make the world "more convenient, healthier, safer, environmentally friendly, and enjoyable," and works together to solve challenges. TI has manufacturing, design, and sales locations in over 30 countries worldwide and continues to pursue innovation. TI's analog ICs and embedded processing support everyday life from behind the scenes in a society overflowing with digital devices. The company is actively investing in products and technologies for markets that will become increasingly important in the future, such as the environment, energy, healthcare, medical devices, and security. Technical Inquiry Contact TI Japan Product Information Center 【http://www.tij.co.jp/pic/】
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