Texas Instruments DRV8306 Brushless-DC Smart Gate Driver
Texas Instruments DRV8306 Brushless-DC Smart Gate Driver is an integrated gate driver for 3-phase brushless DC (BLDC) motor applications. The device provides three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The DRV8306 device generates the proper gate drive voltages using an integrated charge pump for the high-side MOSFETs and a linear regulator for the low-side MOSFETs. The smart gate drive architecture supports up to 150mA source, 300mA sink peak gate drive current, and 15mA rms gate drive current capability.
Features
- 6V to 38V, Triple half-bridge gate driver with integrated 3x hall comparators
- 40V Absolute maximum rating
- Fully optimized for 12V and 24V DC rails
- Drives high-side and low-side N-channel MOSFETs
- Supports 100% PWM duty cycle
- Smart gate drive architecture
- Adjustable slew-rate control for better EMI and EMC performance
- VGS Hand-shake and minimum dead-time insertion to avoid shoot-through
- 15mA to 150mA Peak source current
- 30mA to 300mA Peak sink current
- Integrated commutation from hall sensors
- 120° Trapezoidal current control
- Supports low-cost hall elements
- Tacho Output Signal (FGOUT) for closed-loop speed control
- Integrated gate driver power supplies
- High-side charge pump
- Low-side linear regulator
- Cycle-by-cycle current limit
- Supports 1.8V, 3.3V, and 5V logic inputs
- Low-power sleep mode
- Linear voltage regulator, 3.3V, 30mA
- Compact VQFN package and footprint
- Integrated protection features
- VM Undervoltage Lockout (UVLO)
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- Charge Pump Undervoltage (CPUV)
- MOSFET Overcurrent Protection (OCP)
- Gate Driver Fault (GDF)
- Thermal Shutdown (OTSD)
- Fault Condition Indicator (nFAULT)
Applications
- BLDC Motor modules
- Service robots and service robotics
- Vacuum cleaners
- Drones, robotics, and RC toys
- White goods
- ATM and Currency counting
Simplified Schematic
Paskelbta: 2018-08-06
| Atnaujinta: 2023-02-06