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Texas Instruments DRV8376 Three-Phase Integrated FET Motor Driver

Texas Instruments DRV8376 Three-Phase Integrated FET Motor Driver provides a gate drive and power stage for driving 4.5V to 65V brushless-DC motors. The DRV8376 integrates three 1/2-H bridges with 70V absolute maximum capability and a very low RDS(ON) of 400mΩ (high-side plus low-side) to enable high-power drive capability. Current is sensed using an integrated current sensing feature that eliminates the need for external sense resistors. Power management features with integrated LDO generate the necessary voltage rails for the device and can be used to power external circuits.

Texas Instruments DRV8376 implements a 6x or 3x PWM control scheme, which can implement sensorless or sensored field-oriented control (FOC), sinusoidal control, or trapezoid control using an external microcontroller. The DRV8376 is capable of driving a PWM frequency up to 100kHz. The control scheme is highly configurable through register settings or hardware pins, ranging from motor current limiting behavior to fault response. Many protection features are integrated into DRV8376 to protect the motor, device, and system against fault events.

Features

  • Three-phase BLDC motor driver
    • Supports 48V systems
    • Supports up to 100kHz PWM frequency
    • Active demagnetization to reduce power losses
    • Cycle-by-cycle current limit to limit the phase current
  • 4.5V to 65V operating voltage (70V abs max)
  • High output current capability of 4.5A Peak
  • Low MOSFET on-state resistance of 400mΩ RDS(ON) (HS + LS) at TA = 25°C
  • Reduced switching loss with 1.1V/ns slew rate and reverse recovery loss minimization technique, with adjustable slew rate options
  • Low audible noise and ease of motor control with ultra-low dead time < 200ns, and propagation delay < 100ns
  • Low-power sleep mode of 1.5µA (typ.) at VVM = 24V, TA = 25°C
  • Multiple control interface options
    • 6x PWM control interface
    • 3x PWM control interface
  • The device does not require external current sense resistors, built-in current sensing
  • Flexible device configuration options
    • DRV8376S: 5MHz 16-bit SPI for device configuration and fault status
    • DRV8376H: Hardware pin-based configuration
  • Supports 1.8V, 3.3V, and 5V logic inputs
  • Built-in 3.3V (5%), 30mA LDO regulator
  • Built-in 5V (5%), 30mA LDO regulator
  • Integrated protection features
    • Supply under voltage lockout (UVLO)
    • Charge pump under voltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indication pin (nFAULT)
    • Optional fault diagnostics over SPI

Applications

  • Brushless-DC (BLDC) motor modules
  • HVAC motors
  • Office automation machines
  • Factory automation and robotics
  • Wireless antenna motor
  • Drones

Simplified Schematic

Schematic - Texas Instruments DRV8376 Three-Phase Integrated FET Motor Driver

Evaluation Module

Texas Instruments DRV8376EVM Evaluation Module

Offers an integrated IC platform for three-phase motor driver applications.

Learn Moreacerca de Texas Instruments DRV8376EVM Evaluation Module View Productsrelacionado con Texas Instruments DRV8376EVM Evaluation Module
Publicado: 2025-04-24 | Actualizado: 2025-05-23