DRV8334
3-Phasen-Gate-Treiber, 60 V, 1000 mA bis 2000 mA, mit genauer Strommessung
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.
Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | DRV8334 Three-Phase Smart Gate Driver with Accurate Current Sensing and Advanced Monitoring datasheet | PDF | HTML | 09 Mai 2023 |
EVM User's guide | DRV8334 Evaluation Module User's Guide | PDF | HTML | 15 Nov 2023 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
DRV8334EVM — DRV8334-Evaluierungsmodul für 3-Phasen-Gate-Treiber
BLDC-MAX-QG-MOSFET-CALCULATOR — Calculate the maximum QG MOSFET for your motor driver
Unterstützte Produkte und Hardware
Produkte
BLDC-Treiber
Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
HTQFP (PHP) | 48 | Ultra Librarian |
Bestellen & Qualität
- RoHS
- REACH
- Bausteinkennzeichnung
- Blei-Finish/Ball-Material
- MSL-Rating / Spitzenrückfluss
- MTBF-/FIT-Schätzungen
- Materialinhalt
- Qualifikationszusammenfassung
- Kontinuierliches Zuverlässigkeitsmonitoring
- Werksstandort
- Montagestandort
Support und Schulungen
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