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DRV8317

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24-V max 5-A peak three-phase motor driver with integrated FETs and current sensing

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Data sheet

DRV8317

ACTIVE
Data sheet Order now

Product details

Rating Catalog Architecture Integrated FET Control interface 3xPWM, 6xPWM RDS(ON) (HS + LS) (mΩ) 130 Peak output current (A) 5 Vs (min) (V) 4.5 Vs ABS (max) (V) 24 Features Integrated FETs, Current sense Amplifier, Slew Rate Adjustment, LDO Regulator Operating temperature range (°C) -40 to 125
Rating Catalog Architecture Integrated FET Control interface 3xPWM, 6xPWM RDS(ON) (HS + LS) (mΩ) 130 Peak output current (A) 5 Vs (min) (V) 4.5 Vs ABS (max) (V) 24 Features Integrated FETs, Current sense Amplifier, Slew Rate Adjustment, LDO Regulator Operating temperature range (°C) -40 to 125
WQFN (REE) 36 2E+1 mm² 4 x 5
  • Three-phase BLDC motor driver
    • Configurable slew rate for EMI mitigation
    • Programmable gain current sensing
    • Supports up to 200-kHz PWM frequency
    • Integrated shoot through protection
  • 4.5-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
    • RDS(ON) (HS + LS) at TA = 25°C : 130-mΩ (typical)
  • Ultra-low Q-current sleep mode
    • 3-µA (max.) at VVM = 12-V, 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
    • 10-MHz SPI interface variant for flexibility
    • Pin configurable variant for simplicity
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Built-in 3.3-V ± 4.5%, 80-mA 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)
  • Three-phase BLDC motor driver
    • Configurable slew rate for EMI mitigation
    • Programmable gain current sensing
    • Supports up to 200-kHz PWM frequency
    • Integrated shoot through protection
  • 4.5-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
    • RDS(ON) (HS + LS) at TA = 25°C : 130-mΩ (typical)
  • Ultra-low Q-current sleep mode
    • 3-µA (max.) at VVM = 12-V, 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
    • 10-MHz SPI interface variant for flexibility
    • Pin configurable variant for simplicity
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Built-in 3.3-V ± 4.5%, 80-mA 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)

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

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 200 kHz. DRV8317 is highly configurable either through SPI (DRV8317S) or pins (DRV8317H) - PWM mode, slew rate, current sense gain are some of the configurable features.

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

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

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 200 kHz. DRV8317 is highly configurable either through SPI (DRV8317S) or pins (DRV8317H) - PWM mode, slew rate, current sense gain are some of the configurable features.

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

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Type Title Date
* Data sheet DRV8317 Three-Phase PWM Motor Driver datasheet PDF | HTML 22 Feb 2022
Certificate DRV8317HEVM EU RoHS Declaration of Conformity (DoC) 04 Nov 2022
Technical article How to achieve efficient, reliable and accurate actuation in real-time motor control systems 25 Oct 2022
Technical article Understanding brushless-DC motor systems, part 2 20 Oct 2021
Technical article Understanding brushless-DC motor systems, part 1 18 Oct 2021
Technical article A basic brushless gate driver design – part 3: integrated vs. discrete half bridges 16 Dec 2020

Design & development

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Evaluation board

DRV8317HEVM — DRV8317 evaluation module for three-phase brushless DC (BLDC) gate driver

The DRV8317 is a 4.5-V to 20-V, 5-A peak integrated three-phase FET-driver IC for motor drive applications. It provides three integrated half-bridges capable of directly driving a three-phase brushless DC motor. The DRV8317 integrates multiple control interface options, low-side integrated current (...)
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