計算工具
BLDC-MOSFET-THERMAL-CALC — BLDC integrated MOSFET driver thermal calculator tool
Calculates the thermals of a BLDC integrated MOSFET driver based on user input system parameters
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
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檢視所有 4 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | DRV8376 Three-Phase Integrated FET Motor Driver datasheet (Rev. A) | PDF | HTML | 2025年 3月 13日 |
| Application note | Optimizing Low-Side Current Sensing with DRV8376: Mitigating Gain Error and Temperature Drift | PDF | HTML | 2025年 7月 23日 | |
| Application note | 48V BLDC Drives for Industrial and Automotive Applications - Enabling Integrated Motor Designs | PDF | HTML | 2025年 1月 10日 | |
| EVM User's guide | DRV8376 Evaluation Module User’s Guide | PDF | HTML | 2024年 10月 16日 |
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)。
開發板
DRV8376EVM — DRV8376 評估模組
DRV8376EVM 是適用於三相馬達驅動器應用的整合式驅動器 IC 評估模組，可為驅動 4.5V 至 65V 無刷 DC 馬達的客戶提供單晶片功率級設計。除了 DRV8376 的硬體外，TMS320F280049C 微控制器架構電路板也具有參考軟體，會將必要的訊號傳送至 DRV8376 以轉動三相位無刷 DC 馬達。GUI Composer 軟體可讓使用者對設定進行編程、讓馬達旋轉，並監控系統是否有故障狀況。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (NLG) | 28 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點