MC111
- N-channel H-bridge driver with internal Hall sensor
- RDS(ON): 850mΩ (HS+LS)
- Current rating
- Configurable current limit up to 1.21A
- 0.6A rms (TA = 85oC, RθJA = 100oC/W)
- Integrated supply (VM) clamp
- Configurable speed curve and starting duty cycle
- Commutation schemes: square or
soft (up to 90o)
- Square: maximum torque/speed
- Soft: optimized speed and acoustics
- Configurable speed reference
input: PWM or DC
- Input PWM frequency range: 20 Hz to 90 kHz
- Input DC voltage range: (0-3)V
- Configurable output PWM frequency: 25 or 50kHz
- Closed loop speed control accuracy: ±3%
- PWM dithering to reduce EMI
- Configurable soft start time
- Configurable hall offset angle and time
- Speed output with 0.5x, 1x, 2/3x, or 2x multipliers
- Rotor lock detection output (RD)
- Configurable PWM modes
- Synchronous, asynchronous and hybrid
- Auto-demag for high efficiency across speed
- One-time programming (2 pages) over I2C
- Protection features
- Overcurrent protection for short between VM/GND and OUTx
- Locked rotor protection (LRP) with auto-restart
- VM undervoltage lockout (UVLO)
- VM overvoltage protection (OVP)
- Thermal shutdown (TSD)
- Configurable fault retry time
- Functional features (Opeartion continues)
- when short between FG/RD and GND
- 100% input during short between PWM/DC and VM
The MC111 is a 25V, 850mΩ rated motor driver with integrated N-channel full-bridge, charge pump, Hall sensor, commutation control logic, and protection circuitry for single phase brushless DC motors. The Hall sensor provides rotor position information to the commutation logic to maintain continuous rotor motion. The commutation logic can be programmed for square and soft PWM waveforms to reduce acoustic noise or maximize speed/efficiency.
The duty cycle of a pulse-width modulated signal or a (0-3)V DC voltage on the PWM/DC pin controls the motor speed. FG/RD pin can be configured to report the motor speed or a locked rotor condition to an external controller. The PWM/DC and FG/RD pins can be temporarily configured as an I2C interface to support a programming (OTP) mode to configure the OTP during production.
The MC111 integrates protection features for motor and device protection. These include supply undervoltage lockout, overvoltage protection, output overcurrent protection, device overtemperature shutdown, and locked rotor protection.
The MC111 is available in a 6-pin SOT23-FL package. SOT23-FL is a flat lead package with a maximum height of 1.1mm.
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 | MC111 25V , Single Phase BLDC Driver with Integrated Hall Sensor datasheet | PDF | HTML | 2025/12/2 |
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)。
MC121EVM — MC121 評估模組
MOTORSTUDIO — Motor Studio GUI for tuning and evaluating BLDC motor drivers
Motor Studio 是簡易型圖形使用者介面 (GUI)，可簡化無刷 DC (BLDC) 馬達驅動器的調節程序，縮減裝置評估及產品開發時間。GUI 可讓使用者快速啟動馬達，並將各種馬達運轉階段最佳化，以達到最高馬達性能，穩定馬達啟動與最低雜訊。
MOTORSTUDIO-1PHASE-GUI — GUI for Single phase BLDC driver
Motor Studio 是簡易型圖形使用者介面 (GUI)，可簡化無刷 DC (BLDC) 馬達驅動器的調節程序，縮減裝置評估及產品開發時間。GUI 可讓使用者快速啟動馬達，並將各種馬達運轉階段最佳化，以達到最高馬達性能，穩定馬達啟動與最低雜訊。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23-THN (DYM) | 6 | Ultra Librarian |