DRV8311 - Texas Instruments

DRV8311 Three-Phase PWM Motor Driver

The DRV8311 provides three integrated MOSFET half-H-bridges for driving a three-phase brushless DC (BLDC) motor for 5-V, 9-V, 12-V, or 18-V DC rails or 1S to 4S battery powered applications. The device integrates three current-sense amplifiers (CSA) with integrated current sense for sensing the three phase currents of BLDC motors to achieve optimum FOC and .

Features

• Three-phase PWM motor driver
  – 3-Phase brushless DC motors
• 3-V to 20-V operating voltage
  – 24-V Absolute maximum voltage
• High output current capability
  – 5-A Peak current drive
• Low on-state resistance MOSFETs
  – 210-mΩ typ RDS(ON) (HS + LS) at TA = 25°C
• Low power sleep mode
  – 1.5-µA at VVM = 12-V, TA = 25°C
• Multiple control interface options
  – 6x PWM control interface
  – 3x PWM control interface
  – PWM generation mode (SPI/tSPI) with optional calibration between MCU and DRV8311
• tSPI interface (DRV8311P)
  – PWM duty and frequency update over SPI
  – Control multiple DRV8311P devices usi.