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Texas Instruments DRV8317 Three-Phase Motor Driver

Texas Instruments DRV8317 Three-Phase Motor Driver provides three integrated MOSFET half-bridges for driving three-phase brushless DC (BLDC) motors with 5V, 9V, 12V, or 18V DC rails or 2s to 4s batteries. The device provides integrated three-phase current sensing, eliminating the need for external sense resistors. DRV8317 has an integrated LDO that provides a regulated 3.3V rail capable of delivering up to 80mA for external loads like MCU, logic circuits, hall sensors, etc.

Texas Instruments DRV8317 provides a configurable 6x or 3x PWM control scheme, which can be used to implement sensored or sensorless field-oriented control (FOC), sinusoidal control, or trapezoidal control using an external microcontroller. DRV8317 is capable of driving a PWM frequency of up to 200kHz. Texas Instruments DRV8317 is highly configurable either through SPI (DRV8317S) or pins (DRV8317H) - PWM mode, slew rate, and current sense gain are some of the configurable features.

Several protection features, including supply under voltage lockout (UVLO), over-voltage protection (OVP), and charge pump under voltage (CPUV), are integrated into the device. It also has over-current protection (OCP), over-temperature warning (OTW), and over-temperature shutdown (OTS) features that are integrated into DRV8317 to protect the device, motor, and system against fault events. Fault conditions are indicated by the nFAULT pin.

Features

  • Three-phase BLDC motor driver
    • Configurable slew rate for EMI mitigation
    • Programmable gain current sensing
    • Supports up to 200kHz PWM frequency
    • Integrated shoot-through protection
  • 4.5V to 20V operating voltage
    • 24V absolute maximum voltage
  • High output current capability
    • 5A peak current drive
  • Low on-state resistance MOSFETs
    • RDS(ON) (HS + LS) at TA = 25°C (130mΩ (typical))
  • Ultra-low Q-current sleep mode
    • 3µA (max.) at VVM = 12V, TA = 25°C
  • Multiple control interface options
    • 6x PWM control interface
    • 3x PWM control interface
  • Integrated current sensing
    • No external current sense resistor required
    • Three-phase current sense outputs
  • SPI and hardware device variants
    • 10MHz SPI interface variant for flexibility
    • Pin configurable variant for simplicity
  • Supports 1.8V, 3.3V, and 5V logic inputs
  • Built-in 3.3V ± 4.5%, 80mA LDO regulator
  • Integrated protection features
    • VM under-voltage lockout (UVLO)
    • VM over-voltage protection (OVP)
    • Charge pump under-voltage (CPUV)
    • Over current protection (OCP)
    • Over temperature warning and shutdown (OTW/OTS)
    • Fault condition indication pin (nFAULT)

Applications

  • Brushless-DC (BLDC) motor modules
  • Air purifiers
  • Dishwasher pumps
  • Vacuum robots
  • Washer and dryer pumps
  • Drones and hand-held gimbals
  • Laptop, desktop, and server fans
  • Coffee machines

Simplified Schematic

Schematic - Texas Instruments DRV8317 Three-Phase Motor Driver

Related Development Tool

Texas Instruments DRV8317HEVM Driver Evaluation Module (EVM)

Help users evaluate the DRV8317, a 4.5V to 20V, 5A peak integrated three-phase FET-driver IC.

Learn Moreacerca de Texas Instruments DRV8317HEVM Driver Evaluation Module (EVM) View Productsrelacionado con Texas Instruments DRV8317HEVM Driver Evaluation Module (EVM)
Publicado: 2023-02-13 | Actualizado: 2023-03-01