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DRV8316

ACTIVE

40-V max 8-A peak 3-phase motor driver with integrated current sensing and integrated FETs

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Data sheet

DRV8316

ACTIVE
Data sheet Order now

Product details

Rating Catalog Architecture Integrated FET Control interface 3xPWM, 6xPWM RDS(ON) (HS + LS) (mΩ) 95 Peak output current (A) 8 Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Features Buck Step Down Converter, Current sense Amplifier, Integrated FETs, Slew Rate Adjustment Operating temperature range (°C) -40 to 125
Rating Catalog Architecture Integrated FET Control interface 3xPWM, 6xPWM RDS(ON) (HS + LS) (mΩ) 95 Peak output current (A) 8 Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Features Buck Step Down Converter, Current sense Amplifier, Integrated FETs, Slew Rate Adjustment Operating temperature range (°C) -40 to 125
VQFN (RGF) 40 35 mm² 7 x 5
  • Three-phase BLDC motor driver
  • 4.5-V to 35-V operating voltage (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 VVM = 24-V, TA = 25°C
  • Multiple control interface options
    • 6x PWM control interface
    • 3x PWM control interface
    • 6x PWM control interface with cycle by cycle current limit
    • 3x PWM control interface with cycle by cycle current limit
  • Does not require external current sense resistors, built-in current sensing
  • Flexible device configuration options
    • DRV8316R: 5-MHz 16-bit SPI interface for device configuration and fault status
    • DRV8316T: Hardware pin based configuration
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Built-in 3.3-V (5%), 30-mA LDO regulator
  • Built-in 3.3-V/5-V, 200-mA buck regulator
  • Delay compensation reduces duty cycle distortion
  • Suite of integrated protection features
    • Supply undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indication pin (nFAULT)
    • Optional fault diagnostics over SPI interface
  • Three-phase BLDC motor driver
  • 4.5-V to 35-V operating voltage (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 VVM = 24-V, TA = 25°C
  • Multiple control interface options
    • 6x PWM control interface
    • 3x PWM control interface
    • 6x PWM control interface with cycle by cycle current limit
    • 3x PWM control interface with cycle by cycle current limit
  • Does not require external current sense resistors, built-in current sensing
  • Flexible device configuration options
    • DRV8316R: 5-MHz 16-bit SPI interface for device configuration and fault status
    • DRV8316T: Hardware pin based configuration
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Built-in 3.3-V (5%), 30-mA LDO regulator
  • Built-in 3.3-V/5-V, 200-mA buck regulator
  • Delay compensation reduces duty cycle distortion
  • Suite of integrated protection features
    • Supply undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indication pin (nFAULT)
    • Optional fault diagnostics over SPI interface

The DRV8316 provides a single-chip power stage solution for customers driving 12-V and 24-V brushless-DC motors . The DRV8316 integrates three 1/2-H bridges with 40-V absolute maximum capability and a very low RDS(ON) of 95mOhms (high-side plus low-side) to enable high power drive capability. Current is sensed using an integrated current sensing feature which eliminates the need for external sense resistors. Power management features of an adjustable buck regulator and LDO generate the necessary voltage rails for the device and can be used to power external circuits.

DRV8316 implements a 6x or 3x PWM control scheme which can be used to implement sensored or sensorless field-oriented control (FOC), sinusoidal control, or trapezoid control using an external microcontroler. The DRV8316 is capable of driving a PWM frequency up to 200 kHz. The control scheme is highly configurable through hardware pins or register settings ranging from motor current limiting behavior to fault response.

Each output driver channel consists of N-channel power MOSFETs configured in a half-bridge configuration. Various PWM control modes are supported for simple interfacing to control circuits that can be powered by the 30-mA, 3.3-V internal regulator (AVDD). The DRV8316R/T also supports a buck regulator which in conjunction can support 200-mA with programmable regulated supply. The device supports 200-kHz maximum PWM frequency.

There are a large number of protection features integrated into the DRV8316, intended to protect the device, motor, and system against fault events.

Refer Section 9.1 for design consideration and recommendation on device usage.

The DRV8316 provides a single-chip power stage solution for customers driving 12-V and 24-V brushless-DC motors . The DRV8316 integrates three 1/2-H bridges with 40-V absolute maximum capability and a very low RDS(ON) of 95mOhms (high-side plus low-side) to enable high power drive capability. Current is sensed using an integrated current sensing feature which eliminates the need for external sense resistors. Power management features of an adjustable buck regulator and LDO generate the necessary voltage rails for the device and can be used to power external circuits.

DRV8316 implements a 6x or 3x PWM control scheme which can be used to implement sensored or sensorless field-oriented control (FOC), sinusoidal control, or trapezoid control using an external microcontroler. The DRV8316 is capable of driving a PWM frequency up to 200 kHz. The control scheme is highly configurable through hardware pins or register settings ranging from motor current limiting behavior to fault response.

Each output driver channel consists of N-channel power MOSFETs configured in a half-bridge configuration. Various PWM control modes are supported for simple interfacing to control circuits that can be powered by the 30-mA, 3.3-V internal regulator (AVDD). The DRV8316R/T also supports a buck regulator which in conjunction can support 200-mA with programmable regulated supply. The device supports 200-kHz maximum PWM frequency.

There are a large number of protection features integrated into the DRV8316, intended to protect the device, motor, and system against fault events.

Refer Section 9.1 for design consideration and recommendation on device usage.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet DRV8316 Three-Phase Integrated FET Motor Driver datasheet (Rev. B) PDF | HTML 17 Sep 2021
Application note Improving Thermal Performance for Integrated FET Drivers PDF | HTML 23 Aug 2024
Technical article Achieving a 360-degree field of view in mechanically scanning lidar with BLDC moto PDF | HTML 27 Jan 2022
Application note Delay and Dead Time in Integrated MOSFET Drivers PDF | HTML 23 Aug 2021
Application note How to Design a Thermally-Efficient Integrated BLDC Motor Drive PCB (Rev. A) 05 Feb 2017

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