DRV8334
Controlador de puerta trifásico de 60 V y 1,000 mA a 2,000 mA con detección precisa de corriente
DRV8334
- Three phase half-bridge gate driver
- Drives six N-channel MOSFETs (NMOS)
- 4.5 to 60V 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 protection circuits
- Smart Gate Drive architecture
- 45-level configurable peak gate drive current up to 1000 / 2000mA (source / sink)
- Three-step dynamic drive current control
- Configurable soft shutdown to minimize inductive voltage spikes during overcurrent shutdown
- Low-side Current Sense Amplifier
- Sub-1mV 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 3.3V, and 5V 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 0.8mA up to 1A source and 2A sink. The DRV8334 can operate from a single power supply with a wide input range of 4.5 to 60V. A trickle charge pump enables 100% PWM duty cycle control, and provides overdrive supply voltage for 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.
Documentación técnica
| Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | DRV8334 Three-Phase Smart Gate Driver with Accurate Current Sensing and Advanced Monitoring datasheet (Rev. B) | PDF | HTML | 09 sep 2025 |
| Application brief | DRV8334 Gate Drive Features and Benefits | PDF | HTML | 05 ago 2025 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
DRV8334EVM — Módulo de evaluación DRV8334 para controlador de puerta trifásico
BLDC-MAX-QG-MOSFET-CALCULATOR — Calculate the maximum QG MOSFET for your motor driver
Productos y hardware compatibles
Productos
Controladores BLDC
DRV8334-SMART-GATE-DRIVE-REGISTER-SETTINGS-CALC — Calculator to provide recommended smart gate drive register settings for the DRV8334
Productos y hardware compatibles
Productos
Controladores BLDC
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| HTQFP (PHP) | 48 | Ultra Librarian |
| VQFN (RGZ) | 48 | Ultra Librarian |
Pedidos y calidad
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
- Lugar de fabricación
- Lugar de ensamblaje
Soporte y capacitación
Foros de TI E2E™ con asistencia técnica de los ingenieros de TI
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