DRV8307/8 3-Phase Brushless DC Motor Controllers

A three half-bridge pre-driver that drives six N-type MOSFETs 30 mA with a single power supply from Texas Instruments

Image of Texas Instruments' DRV8307/8 3-Phase Brushless DC Motor ControllersTexas Instruments' DRV8307 is a three half-bridge pre-driver that drives six N-type MOSFETs 30 mA with a single power supply. Aimed at sensored three-phase brushless DC motors, the DRV8307 is driven by a single PWM input and supports integrated commutation logic with three Hall sensor inputs. A separate 5 V regulator is also included to be used to power Hall-Effect sensors and other external components.

The DRV8307 includes a current sense input for current limiting and protection. The current limit can be set by adjusting the value of the RISENSE sense resistor.

The DRV8308 device is a three half-bridge pre-driver that drives up to 130 mA to six N-type MOSFETs with a single power supply. Aimed at sensored three-phase brushless DC motors, this pre-driver includes configurable a digital speed loop, speed controls, and commutation modes to optimize motor performance. When properly tuned, the DRV8308 device can drive motors with less than 0.1% cycle jitter and fast torque compensation.

The integrated digital speed loop allows the motor to maintain speed under variable loads with programmable gain and loop filters. The adjustable slew rates can also lower the switching noise and improve EMC.

DRV8307 Features
DRV8308 Features
  • Three-phase brushless DC motor controller
    • PWM input for speed control
  • Operating supply voltage 8.5 to 32 V
  • 30 mA gate-drive current to 6 N-channel MOSFETs
  • Integrated current sense amplifier
  • 5 V regulator for Hall sensors
  • Three-phase brushless DC motor controller
    • Fully digital speed loop with programmable gain and loop filters
    • Clock input or PWM inputs for speed control
  • Operating supply voltage 8.5 to 32 V
  • Drives 10 to 130 mA gate-drive current to 6 N-channel MOSFETs with adjustable slew rates
  • Supports sensor-based sinusoidal and trapezoidal commutation control with tunable delay

DRV83078 3-Phase Brushless DC Motor Controllers

ImageManufacturer Part NumberDescriptionAvailable Quantity
DRV8307RHAR datasheet linkIC MOTOR CONTROLLER PAR 40VQFNDRV8307RHARIC MOTOR CONTROLLER PAR 40VQFN1467 - Immediate
10000 - Factory Stock
DRV8307RHAR product page link
DRV8308RHAR datasheet linkIC MOTOR CONTROLLER SPI 40VQFNDRV8308RHARIC MOTOR CONTROLLER SPI 40VQFN855 - Immediate
10000 - Factory Stock
DRV8308RHAR product page link
DRV8308RHAT datasheet linkIC MOTOR CONTROLLER SPI 40VQFNDRV8308RHATIC MOTOR CONTROLLER SPI 40VQFN50 - Immediate
4750 - Factory Stock
DRV8308RHAT product page link

Evaluation Boards/Modules

ImageManufacturer Part NumberDescriptionAvailable Quantity
DRV8308EVM datasheet linkMOD EVAL DRV8308 PREDRIVERDRV8308EVMMOD EVAL DRV8308 PREDRIVER23 - Immediate
74 - Factory Stock
DRV8308EVM product page link
DRV8307EVM datasheet linkEVAL BOARD MOTOR DRIVER DRV8307DRV8307EVMEVAL BOARD MOTOR DRIVER DRV83071 - Immediate
9 - Factory Stock
DRV8307EVM product page link
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Published: 2014-06-30