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DRV8376

VORSCHAU

70V max 4.5A peak 3-phase motor driver with integrated current sensing and integrated FETs

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Datenblatt

DRV8376

VORSCHAU
Datenblatt Jetzt bestellen

Produktdetails

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VQFN (NLG) 28 30 mm² 6 x 5
  • 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 phase current
  • 4.5V to 65V operating voltage (70V abs max)
  • High output current capability: 4.5A Peak
  • Low MOSFET on-state resistance
    • 400mΩ RDS(ON) (HS + LS) at TA = 25°C
  • Reduced switching loss with 1.1V/ns slew rate and reverse recovery loss minimization technique
    • 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
    • 1.5µA typ at VVM = 24-V, TA = 25°C
  • Multiple control interface options
    • 6x PWM control interface
    • 3x PWM control interface
  • Does not require external current sense resistors, built-in current sensing
  • Flexible device configuration options
    • DRV8376S: 5MHz 16-bit SPI interface 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
  • 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
    • Supports 48V systems
    • Supports up to 100kHz PWM frequency
    • Active Demagnetization to reduce power losses
    • Cycle-by-cycle current limit to limit phase current
  • 4.5V to 65V operating voltage (70V abs max)
  • High output current capability: 4.5A Peak
  • Low MOSFET on-state resistance
    • 400mΩ RDS(ON) (HS + LS) at TA = 25°C
  • Reduced switching loss with 1.1V/ns slew rate and reverse recovery loss minimization technique
    • 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
    • 1.5µA typ at VVM = 24-V, TA = 25°C
  • Multiple control interface options
    • 6x PWM control interface
    • 3x PWM control interface
  • Does not require external current sense resistors, built-in current sensing
  • Flexible device configuration options
    • DRV8376S: 5MHz 16-bit SPI interface 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
  • 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 DRV8376 provides a single-chip power stage solution for customers 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 eliminating 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.

DRV8376 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 microcontroller. The DRV8376 is capable of driving a PWM frequency up to 100kHz. The control scheme is highly configurable through hardware pins or register settings ranging from motor current limiting behavior to fault response.

There are a large number of protection features integrated into DRV8376, intended to protect the device, motor, and system against fault events.

The DRV8376 provides a single-chip power stage solution for customers 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 eliminating 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.

DRV8376 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 microcontroller. The DRV8376 is capable of driving a PWM frequency up to 100kHz. The control scheme is highly configurable through hardware pins or register settings ranging from motor current limiting behavior to fault response.

There are a large number of protection features integrated into DRV8376, intended to protect the device, motor, and system against fault events.

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Technische Dokumentation

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* Data sheet DRV8376 Three-Phase Integrated FET Motor Driver datasheet PDF | HTML 22 Mai 2023
EVM User's guide DRV8376 Evaluation Module User’s Guide PDF | HTML 16 Okt 2024

Design und Entwicklung

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Evaluierungsplatine

DRV8376EVM — Evaluierungsmodul DRV8376

Das Evaluierungsmodul (EVM) DRV8376 ist ein integriertes Treiber-IC-EVM für dreiphasige Motortreiberanwendungen und bietet eine Ein-Chip-Leistungsstufenlösung für Kunden, die bürstenlose Gleichstrommotoren mit 4,5 V bis 65 V antreiben. Zusammen mit der Hardware des DRV8376 verfügt die (...)

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