Product details

Rating Catalog Architecture Gate driver Control interface 1xPWM, 3xPWM, 6xPWM, SPI Gate drive (A) 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 65 Features Current sense Amplifier, Phase Comparators, SPI/I2C, Watchdog timer Operating temperature range (°C) -40 to 125
Rating Catalog Architecture Gate driver Control interface 1xPWM, 3xPWM, 6xPWM, SPI Gate drive (A) 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 65 Features Current sense Amplifier, Phase Comparators, SPI/I2C, Watchdog timer Operating temperature range (°C) -40 to 125
HTQFP (PHP) 48 81 mm² 9 x 9
  • Three phase half-bridge gate driver
    • Drives six N-channel MOSFETs (NMOS)
    • 4.5 to 60-V wide operating voltage range
    • Bootstrap architecture for high-side gate driver
    • Strong GVDD charge pump to support up to 50mA average gate switching current enables driving 400nC MOSFETs at 20kHz
    • Trickle charge pump to support 100% PWM duty cycle and to generate overdrive supply to drive external cut-off or reverse polarity protection circuit
  • Smart Gate Drive architecture
    • 45-level configurable peak gate drive current up to 1000 / 2000-mA (source / sink)
    • Three-step drive current configuration to optimize charge/discharge cycle and minimize deadtime
    • Closed-loop automatic deadtime insertion based on gate-source voltage monitoring
    • Configurable soft shutdown to minimize inductive voltage spikes during overcurrent shutdown
  • Low-side Current Sense Amplifier
    • Sub-1 mV low input offset across temperature
    • 9-level adjustable gain
  • SPI-based detailed configuration and diagnostics
  • DRVOFF pin to disable driver independently
  • High voltage wake up pin (nSLEEP)
  • 6x, 3x, 1x, and Independent PWM Modes
  • Supports 3.3-V, and 5-V Logic Inputs
  • Integrated protection features
    • Battery and power supply voltage monitors
    • Phase feedback comparator
    • MOSFET VDS and Rsense over current monitors
    • MOSFET VGS gate fault monitors
    • Device thermal warning and shutdown
    • Fault condition indicator pin
  • Three phase half-bridge gate driver
    • Drives six N-channel MOSFETs (NMOS)
    • 4.5 to 60-V wide operating voltage range
    • Bootstrap architecture for high-side gate driver
    • Strong GVDD charge pump to support up to 50mA average gate switching current enables driving 400nC MOSFETs at 20kHz
    • Trickle charge pump to support 100% PWM duty cycle and to generate overdrive supply to drive external cut-off or reverse polarity protection circuit
  • Smart Gate Drive architecture
    • 45-level configurable peak gate drive current up to 1000 / 2000-mA (source / sink)
    • Three-step drive current configuration to optimize charge/discharge cycle and minimize deadtime
    • Closed-loop automatic deadtime insertion based on gate-source voltage monitoring
    • Configurable soft shutdown to minimize inductive voltage spikes during overcurrent shutdown
  • Low-side Current Sense Amplifier
    • Sub-1 mV low input offset across temperature
    • 9-level adjustable gain
  • SPI-based detailed configuration and diagnostics
  • DRVOFF pin to disable driver independently
  • High voltage wake up pin (nSLEEP)
  • 6x, 3x, 1x, and Independent PWM Modes
  • Supports 3.3-V, and 5-V Logic Inputs
  • Integrated protection features
    • Battery and power supply voltage monitors
    • Phase feedback comparator
    • MOSFET VDS and Rsense over current monitors
    • MOSFET VGS gate fault monitors
    • Device thermal warning and shutdown
    • Fault condition indicator pin

The DRV8334 is an integrated smart gate driver for three-phase BLDC applications. The device provides three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The DRV8334 generates the correct gate drive voltages using an integrated bootstrap diode and a GVDD charge pump. The Smart Gate Drive architecture supports configurable peak gate drive current from 0.7-mA up to 1-A source and 2-A sink. The DRV8334 can operate from a single power supply with a wide input range of 4.5 to 60-V. A trickle charge pump allows for the gate drivers to support 100% PWM duty cycle control, and provides overdrive gate drive voltage of external switches.

The DRV8334 provides low-side current sense amplifiers to support resistor based low-side current sensing. The low offset of the amplifiers enables the system to obtain precise motor current measurement.

A wide range of diagnostics and protection features integrated in the DRV8334 enable a robust motor drive system design and help eliminate the needs of external components. The highly configurable device response allows the device to be integrated seamlessly into a variety of system designs.

The DRV8334 is an integrated smart gate driver for three-phase BLDC applications. The device provides three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The DRV8334 generates the correct gate drive voltages using an integrated bootstrap diode and a GVDD charge pump. The Smart Gate Drive architecture supports configurable peak gate drive current from 0.7-mA up to 1-A source and 2-A sink. The DRV8334 can operate from a single power supply with a wide input range of 4.5 to 60-V. A trickle charge pump allows for the gate drivers to support 100% PWM duty cycle control, and provides overdrive gate drive voltage of external switches.

The DRV8334 provides low-side current sense amplifiers to support resistor based low-side current sensing. The low offset of the amplifiers enables the system to obtain precise motor current measurement.

A wide range of diagnostics and protection features integrated in the DRV8334 enable a robust motor drive system design and help eliminate the needs of external components. The highly configurable device response allows the device to be integrated seamlessly into a variety of system designs.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet DRV8334 Three-Phase Smart Gate Driver with Accurate Current Sensing and Advanced Monitoring datasheet PDF | HTML 09 May 2023
EVM User's guide DRV8334 Evaluation Module User's Guide PDF | HTML 15 Nov 2023

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DRV8334EVM — DRV8334 evaluation module for 3-phase gate driver

The DRV8334 evaluation module (EVM) is a 30-A 3-phase brushless DC drive stage based on the DRV8334 gate driver for BLDC motors. The EVM allows quick evaluation of the DRV8334 device which spins a BLDC motor with trapezoidal commutation and control. Status LEDs for all power supplies as well as a (...)
User guide: PDF | HTML
Not available on TI.com
GUI for evaluation module (EVM)

DRV8334EVM-SENSORED-TRAPEZOIDAL-GUI DRV8334EVM GUI to support sensored trapezoidal motor control

DRV8334EVM GUI to support sensored trapezoidal motor control
Supported products & hardware

Supported products & hardware

Products
BLDC drivers
DRV8334 60-V 1000-mA to 2000-mA 3-phase gate driver with accurate current sensing
Calculation tool

BLDC-MAX-QG-MOSFET-CALCULATOR Calculate the maximum QG MOSFET for your motor driver

Calculate the maximum QG MOSFET that can be driven based on the PWM switching frequency, algorithm type, and additional external capacitance.
Supported products & hardware

Supported products & hardware

Products
BLDC drivers
DRV8320 65-V max 3-phase smart gate driver DRV8320R 65-V max 3-phase smart gate driver with buck regulator DRV8323 65-V max 3-phase smart gate driver with current shunt amplifiers DRV8323R 65-V max 3-phase smart gate driver with buck regulator & current shunt amplifiers DRV8329 60V three-phase gate driver with single current-sense amplifier DRV8329-Q1 Automotive 60V three-phase gate driver with single current-sense amplifier DRV8334 60-V 1000-mA to 2000-mA 3-phase gate driver with accurate current sensing DRV8340-Q1 Automotive 12-V to 24-V battery 3-phase smart gate driver DRV8343-Q1 Automotive 12-V to 24-V battery 3-phase smart gate driver with current shunt amplifiers DRV8350 102-V max 3-phase smart gate driver DRV8350F 102-V max 3-phase Functional Safety Quality-Managed smart gate driver DRV8350R 102-V max 3-phase smart gate driver with buck regulator DRV8353 102-V max 3-phase smart gate driver with current shunt amplifiers DRV8353F 102-V max 3-phase Functional Safety Quality-Managed smart gate driver with 3x CSA DRV8353M 102-V max 3-phase smart gate driver with current shunt amplifiers and extended temperature DRV8353R 102-V max 3-phase smart gate driver with buck regulator & current shunt amplifiers
Package Pins CAD symbols, footprints & 3D models
HTQFP (PHP) 48 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos