TI DRV10983低噪音三相无传感器马达驱动方案
TI公司的DRV10983是集成了功率MOSFET的三相无传感器马达驱动器,连续驱动电流高达2A,输入电压8-28V,低噪音低外接元件,马达可通过PWM,模拟或I2C输入进行控制,主要用在家用电器风扇和HVAC.本文介绍了DRV10983主要特性,框图,以及评估板DRV10983 EVM主要特性,电路图和材料清单.
DRV10983 is a three-phase sensorless motor driver with integrated power MOSFETs, which can provide continuous drive current up to 2 A. The device is specifically designed for cost-sensitive, low-noise/low external component count applications.
The DRV10983 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 interface to the device is designed to be simple and flexible. The motor can be controlled directly through PWM, analog, or I2C inputs. Motor speed feedback is available through either the FG pin or I2C.
The DRV10983 features an integrated buck/linear regulator to efficiently step down the supply voltage to either 5 or 3.3 V for powering both internal and external circuits. The device provides a standby mode function to conserve power when the motor is not running. The regulator keeps running and is able to power an external microcontroller in the standby mode...
