DRV8378
- Three-phase BLDC motor driver
- 4.5V to 65V operating voltage (70V abs max)
- High output current capability: 16A Peak
- Low MOSFET on-state resistance
- 58mΩ RDS(ON) (HS + LS) at TA = 25°C
- Advanced MOSFET switching technique to reduce switching loss with 1.1V/ns @24V slew rate and negligible reverse recovery loss
- Ultra-low dead time < 100ns and propagation delay < 100ns, to minimize current distortion in motor drives enabling lower audible noise and improved control accuracy
- Low power sleep mode
- 3.6µA at VVM = 48V, 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 with ±3% accuracy at TA = 25°C
- Integrated charge pump supporting 100% duty cycle
- Active demagnetization and automatic synchronous rectification to reduce power losses
- Ultra-small package option of 6x4mm, 5x7mm
- Built-in 5V (5%), 30mA LDO regulator (GVDD), for internal predrivers and external load
- Flexible device configuration options
- DRV8378S: 5MHz 16bit SPI for device configuration and fault status, with internal GVDD regulator
- DRV8378G: 5MHz 16bit SPI for device configuration and fault status, with external 5V for predrivers
- DRV8378H: Hardware pin based configuration, with internal GVDD regulator
- Supports 1.8V, 3.3V, and 5V logic inputs
- 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)
The DRV8378 provides a single-chip integrated FET power stage for driving brushless-DC motors. The DRV8378 integrates three 1/2H bridges with 70V absolute maximum capability and a very low RDS(ON) of 58mΩ (high-side plus low-side) to enable high power drive capability. Current is sensed using an integrated current sensing feature which eliminates the need for external sense resistors. An integrated LDO generate the necessary voltage rails for the device and can be used to power external circuits. Each output driver channel consists of N-channel power MOSFETs configured in a half-bridge configuration.
DRV8378 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 DRV8378 is capable of driving a PWM frequency up to 200kHz.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | DRV8378 Three-Phase Integrated FET Motor Driver 数据表 (Rev. A) | PDF | HTML | 2026-8-17 | ||
| * | 数据表 | DRV8378 三相集成式 FET 电机驱动器 | PDF | HTML | PDF | HTML | 2026-5-19 | |
| 应用简报 | 类人机器人中的电机控制 | PDF | HTML | PDF | HTML | 2026-6-22 | ||
| 应用手册 | 使用 DRV8376 优化低侧电流检测：缓解增益误差和温度漂移 | PDF | HTML | 英语版 | PDF | HTML | 2025-10-16 |
设计与开发
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DRV8376EVM — DRV8376 评估模块
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN-FCRLF (VER) | 23 | Ultra Librarian |