TI DRV10987 50W三相无传感器BLDC马达驱动方案
TI公司的DRV10987是50W 12V-24V三相无传感器BLDC马达驱动器,集成了功率MOSFET,提供连续驱动电流高达2A,马达工作电压6.2V-28V,集成了降压转换器5V/100mA,LDO 3.3V/20mA,主要用在空气净化器和加湿器,三向BLDC和PMSM马达,烘干循环风机,排水和水泵,台扇和吊扇.本文介绍了DRV10987主要特性,框图,应用电路图以及评估模块DRV10987 EVM主要特性,电路图,材料清单.
The DRV10987 device is a 3-phase sensorless 180°sinusodial motor driver with integrated powerMOSFETs, which can provide continuous drivecurrent up to 2 A. The device is specifically designedfor cost-sensitive, low-noise, low-external-componentcount fan and pump applications.™
The DRV10987 device delivers current to the motorwith supply voltage as low as 6.2 V. If the powersupply voltage is higher than 28 V, the device stopsdriving the motor and protects the DRV10987circuitry.
The DRV10987 device uses a proprietary sensorless control scheme to provide continuous sinusoidal drive,which significantly reduces the pure tone acoustics that typically occur as a result of commutation. The interfaceto the device is designed to be simple and flexible. The motor can be controlled directly through PWM, analog, orI2C inputs. Motor speed feedback is available through both the FG pin and the I2C interface simultaneously.
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