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
DRV8311-Q1
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- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C ≤ TA ≤ 125°C
- 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-Q1
- tSPI (DRV8311P-Q1)
- PWM duty and frequency update over SPI
- Control multiple DRV8311P-Q1 devices using standard 4-wire SPI
- 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-Q1 provides three integrated MOSFET half-H-bridges for driving a three-phase brushless DC (BLDC) motor for 5V, 9V, 12V, or 18V 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-Q1 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. This feature reduces the number of required I/O ports from the primary controller to control multiple motors.
技術文件
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檢視所有 1 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | DRV8311-Q1 Three-Phase PWM Motor Driver datasheet | PDF | HTML | 2025年 10月 29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)。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RRW) | 24 | 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