DRV8376
- Three-phase BLDC motor driver
- Supports 48V systems
- Supports up to 100kHz PWM frequency
- Active Demagnetization to reduce power losses
- Cycle-by-cycle current limit to limit phase current
- 4.5V to 65V operating voltage (70V abs max)
- High output current capability: 4.5A Peak
- Low MOSFET on-state resistance
- 400mΩ RDS(ON) (HS + LS) at TA = 25°C
- Reduced switching loss with 1.1V/ns slew rate and reverse recovery loss minimization technique
- Adjustable slew rate options
- Low audible noise and ease of motor control with ultra-low dead time < 200ns, and propagation delay < 100ns
- Low-power sleep mode
- 1.5µA typical at VVM = 24V, TA = 25°C
- Multiple control interface options
- 6x PWM control interface
- 3x PWM control interface
- Does not require external current sense resistors, built-in current sensing
- Flexible device configuration options
- DRV8376S: 5MHz 16-bit SPI for device configuration and fault status
- DRV8376H: Hardware pin-based configuration
- Supports 1.8V, 3.3V, and 5V logic inputs
- Built-in 3.3V (5%), 30mA LDO regulator
- Built-in 5V (5%), 30mA LDO regulator
- Integrated protection features
- Supply under voltage lockout (UVLO)
- Charge pump under voltage (CPUV)
- Overcurrent protection (OCP)
- Thermal warning and shutdown (OTW/OTSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over SPI
The DRV8376 provides a gate drive and power stage for driving a 4.5V to 65V brushless-DC motors. The DRV8376 integrates three 1/2-H bridges with 70V absolute maximum capability and a very low RDS(ON) of 400mΩ (high-side plus low-side) to enable high-power drive capability. Current is sensed using an integrated current sensing feature eliminating the need for external sense resistors. Power management features with integrated LDO generate the necessary voltage rails for the device and can be used to power external circuits.
DRV8376 implements a 6x or 3x PWM control scheme which can be used to implement sensored or sensorless field-oriented control (FOC), sinusoidal control, or trapezoid control using an external microcontroller. The DRV8376 is capable of driving a PWM frequency up to 100kHz. The control scheme is highly configurable through hardware pins or register settings ranging from motor current limiting behavior to fault response.
There are a large number of protection features integrated into DRV8376, intended to protect the device, motor, and system against fault events.
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 | DRV8376 Three-Phase Integrated FET Motor Driver datasheet (Rev. A) | PDF | HTML | 2025/3/13 | ||
| 應用說明 | Optimizing Low-Side Current Sensing with DRV8376: Mitigating Gain Error and Temperature Drift | PDF | HTML | 2025/7/23 | |||
| 應用說明 | 48V BLDC Drives for Industrial and Automotive Applications - Enabling Integrated Motor Designs | PDF | HTML | 2025/1/10 |
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)。
DRV8376EVM — DRV8376 評估模組
BLDC-MOSFET-THERMAL-CALC — BLDC integrated MOSFET driver thermal calculator tool
TIDA-010992 — 採用單一 MCU，適用於人形機器人手持參考設計的集中式六軸馬達控制
此參考設計採用單一 TI C2000™ F28P65 微控制器，適用於具備六軸控制的工業乙太網路馬達驅動。此設計使用面積小於 42cm2 的印刷電路板 (PCB) 來驅動 6 自由度 (DoF) 的人型機器手。此設計展示了精巧的外形和整合式平台。此整合式平台採用六個 DRV8376 三相位馬達驅動器，具備整合式電流感測功能，並以 FET 作為功率級。此平台包含即時馬達控制與工業乙太網路通訊，使用配備兩個 32 位元 C28x 數位訊號處理器 (DSP) 中央處理單元 (CPU) 與一個控制律加速器 (CLA) CPU 的 F28P65 裝置，皆以 200MHz 執行。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (NLG) | 28 | Ultra Librarian |