DRV8311数据手册集成电路（IC）的电机驱动器控制器规格书PDF

描述 Description

The DRV8311 provides three integrated MOSFET half-H-bridges for driving a three-phase brushless DC (BLDC) motor for 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 current-control system implementation.

The DRV8311P device provides capability to generate and configure PWM timers over Texas Instruments SPI (tSPI), and allows the control of multiple BLDC motors directly over the tSPI interface. This feature reduces the number of required I/O ports from the primary controller to control multiple motors.

特性 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
• 200-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 using standard 4-wire SPI interface

• Supports up to 200-kHz PWM frequency
• Integrated current sensing
• No external resistor required
• Sense amplifier output, one per 1/2-H

• SPI and hardware device variants
• 10-MHz SPI communication (SPI/tSPI)

• Supports 1.8-V, 3.3-V, and 5-V logic inputs
• Built-in 3.3-V ± 4.5%, 100-mA LDO regulator
• Integrated protection features
• VM undervoltage lockout (UVLO)
• Charge pump undervoltage (CPUV)
• Overcurrent protection (OCP)
• Thermal warning and shutdown (OTW/OTSD)
• Fault condition indication pin (nFAULT)