DRV8311
- Three-phase PWM motor driver
- 3-Phase brushless DC motors
- 3-V to 20-V operating voltage
- 24-V Absolute maximum voltage
- High output current capability
- 5-A Peak current drive
- Low on-state resistance MOSFETs
- 210-mΩ typ RDS(ON) (HS + LS) at TA = 25°C
- Low power sleep mode
- 1.5-µA at VVM = 12-V, TA = 25°C
- Multiple control interface options
- 6x PWM control interface
- 3x PWM control interface
- PWM generation mode (SPI/tSPI) with optional calibration between MCU and DRV8311
- tSPI interface (DRV8311P)
- PWM duty and frequency update over SPI
- Control multiple DRV8311P devices using standard 4-wire SPI interface
- Supports up to 200-kHz PWM frequency
- Integrated current sensing
- No external resistor required
- Sense amplifier output, one per 1/2-bridge
- SPI and hardware device variants
- 10-MHz SPI communication (SPI/tSPI)
- Supports 1.8-V, 3.3-V, and 5-V logic inputs
- Built-in 3.3-V ± 4.5%, 100-mA LDO regulator
- Integrated protection features
- VM undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Thermal warning and shutdown (OTW/OTSD)
- Fault condition indication pin (nFAULT)
The DRV8311 provides three integrated MOSFET half-H-bridges for driving a three-phase brushless DC (BLDC) motor for 5-V, 9-V, 12-V, or 18-V DC rails or 1S to 4S battery powered applications. The device integrates three current-sense amplifiers (CSA) with integrated current sense for sensing the three phase currents of BLDC motors to achieve optimum FOC and current-control system implementation.
The DRV8311P device provides capability to generate and configure PWM timers over Texas Instruments SPI (tSPI), and allows the control of multiple BLDC motors directly over the tSPI interface. This feature reduces the number of required I/O ports from the primary controller to control multiple motors.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | DRV8311 Three-Phase PWM Motor Driver datasheet (Rev. B) | PDF | HTML | 2022/2/22 | ||
| Application brief | Driving BLDC Motors with PWM Generation Mode | 2023/5/17 | ||||
| 應用說明 | Reduce Wires for Your Next Multi-Motor BLDC Design With tSPI Protocol | PDF | HTML | 2021/11/17 | |||
| 應用說明 | Delay and Dead Time in Integrated MOSFET Drivers | PDF | HTML | 2021/8/23 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
DRV8311HEVM — DRV8311H 三相 PWM 馬達驅動器評估模組
DRV8311HEVM 提供三個半全橋整合式 MOSFET 驅動器，可為 12-V DC 軌或電池供電應用驅動具 5-A 峰值電流驅動的三相無刷 DC (BLDC) 馬達。
裝置整合三個電流感測放大器 (CSA) 與整合式電流感測來感測 BLDC 馬達的三相電流，以實現最佳 FOC 和電流控制系統配置。
LaunchPad 連線可實現使用 DRV8311 的個人韌體開發平台。其中包括用於與 DRV8311xEVM_InstaSPIN_Universal_GUI 介接的 LAUNCHXL-F280049C C2000 LaunchPad。
MSP-MOTOR-CONTROL — MSPM0 Firmware solutions for motor control applications
MSP 馬達控制為一系列軟體、工具和範例，可在 30 分鐘或更短時間內運用 MSPM0 Arm® Cortex® M0+ MCU 和熱門馬達驅動器解決方案來運轉馬達。
MSP 馬達控制提供可轉動有刷、步進與三相馬達的受支援硬體套件範例，具備最佳性能、整合性與易用性的感測和無感測器控制演算法。透過訂購硬體、連接馬達及使用我們的圖形使用者介面或線上程式碼範例，可隨時運轉您的馬達。
BLDC-MOSFET-THERMAL-CALC — BLDC integrated MOSFET driver thermal calculator tool
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RRW) | 24 | Ultra Librarian |