Texas Instruments

DRV8316C 3-Phase Motor Driver

Texas Instruments' FET motor driver features integrated current sensing

Image of Texas Instruments' DRV8316C 3-Phase Motor DriverTexas Instruments' DRV8316C integrates three H-bridges with 40 V absolute maximum capability and a very low RDS(ON) of 95 mΩ (high-side + low-side) to enable high-power drive capability for 12 V / 24 V brushless DC (BLDC) motors. The DRV8316C provides integrated current sensing, which eliminates the need for external sense resistors. The driver integrates power management circuits including a voltage-adjustable buck regulator (3.3 V / 5 V, 200 mA) and an LDO (3.3 V / 30 mA) that can power external circuits.

The DRV8316C provides a configurable 6x or 3x PWM-control scheme, which can implement sensored or sensorless field-oriented control (FOC), sinusoidal control, or trapezoid control using an external microcontroller. The device can drive a PWM frequency of up to 200 kHz. The DRV8316C is highly configurable through the SPI (DRV8316CR) or pins (DRV8316CT). Some of the configurable features include PWM mode, slew rate, OCP level, and current sense gain.

Integrated protection features including supply undervoltage lockout (UVLO), overvoltage protection (OVP), charge pump undervoltage (CPUV), overcurrent protection (OCP), overtemperature warning (OTW) and overtemperature shutdown (OTSD) protect the device, motor, and system against fault events. Fault conditions are indicated by the nFAULT pin.

Features
  • Three-phase BLDC motor driver:
    • Cycle-by-cycle current limit-to-limit phase current
    • PWM frequency: up to 200 kHz
    • Active demagnetization to reduce power losses
  • Operating voltage range: 4.5 V to 35 V, 40 V abs. max.
  • High output current capability: 8 A peak
  • Low MOSFET on-state resistance: 95 mΩ RDS(ON) (HS + LS) at TA = +25°C
  • Low power sleep mode: 1.5 µA at 24 VVM and TA = +25°C
  • Multiple control interface options:
    • 6x PWM control interface
    • 3x PWM control interface
    • 6x PWM control interface with a cycle-by-cycle current limit
    • 3x PWM control interface with a cycle-by-cycle current limit
  • Built-in current sensing and does not require external current-sense resistors
  • Flexible device configuration options:
    • 5 MHz 16-bit SPI interface for device configuration and fault status (DRV8316CR)
    • Hardware pin-based configuration (DRV8316CT)
  • Supports logic inputs: 1.8 V, 3.3 V, and 5 V
  • Built-in 3.3 V (5%), 30 mA LDO regulator
  • Built-in 3.3 V / 5 V, 200 mA buck regulator
  • Built-in 3.3 V, 30 mA LDO
  • Delay compensation reduces duty-cycle distortion
  • Suite of integrated protection features:
    • Supply UVLO, CPUV, OCP, and OTW/OTSD
    • Fault condition indication pin (nFAULT)
    • Optional fault diagnostics over the SPI interface
Applications
  • CPAP machines
  • BLDC motor modules
  • Printers
  • Camera gimbals
  • HVAC motors
  • Small home appliances
  • Office automation machines
  • Factory automation and robotics

DRV8316C 3-Phase Motor Drivers

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
40-V MAX 8-A PEAK THREE-PHASE MODRV8316CRRGFR40-V MAX 8-A PEAK THREE-PHASE MO740 - Immediate$39.82View Details
40-V MAX 8-A PEAK THREE-PHASE MODRV8316CTRGFR40-V MAX 8-A PEAK THREE-PHASE MO1213 - Immediate$38.10View Details
AUTOMOTIVE 40-V MAX 8-A PEAK THRDRV8316CTQRGFRQ1AUTOMOTIVE 40-V MAX 8-A PEAK THR2307 - Immediate$47.46View Details
AUTOMOTIVE 40-V MAX 8-A PEAK THRDRV8316CRQRGFRQ1AUTOMOTIVE 40-V MAX 8-A PEAK THR2050 - Immediate$49.59View Details

Evaluation Board

ImageManufacturer Part NumberDescriptionTypeFunctionEmbeddedAvailable QuantityPriceView Details
EVAL BOARD FOR DRV8316RDRV8316REVMEVAL BOARD FOR DRV8316RPower ManagementGate DriverYes, MCU20 - Immediate$876.93View Details
Published: 2023-03-10

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