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
Data sheet
DRV8334
- 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.
Technical documentation
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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
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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 (...)
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
Products
BLDC drivers
| Package | Pins | Download |
|---|---|---|
| HTQFP (PHP) | 48 | View options |
Ordering & quality
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