MCF8329A
- Three-phase BLDC gate driver with integrated sensorless motor control algorithm
- Code-free single shunt Field Oriented Control
- Supports up to 1.8 kHz (electrical frequency)
- Support flux weakening control
- Forward and reverse windmilling support
- Analog, PWM, freq., or I 2C based control input
- Configurable motor startup and stop options
- Optional closed-loop speed or power or current control or modulation index control
- 5-point configurable reference profile support
- Anti-voltage surge prevents overvoltage
- Improved acoustic performance with automatic dead time compensation
- Support maximum torque per ampere (MTPA)
- Offline motor back EMF measurement
- Variable monitoring through DACOUT
- 65-V Three-phase gate driver
- Drives 3 high-side and 3 low-side N-Channel MOSFETs, 4.5 to 60-V operating voltage
- Supports 100% PWM duty cycle
- Bootstrap-based gate driver architecture
- 1-A/2-A Maximum peak source/sink current
- Integrated current sense amplifier
- Adjustable gain (5, 10, 20, 40 V/V)
- Low-power sleep mode
- 5-µA (maximum) at V PVDD = 24-V, T A = 25°C
- Speed loop accuracy: < 3% with internal clock
- Configurable non-volatile memory (EEPROM) to store device configuration
- Supports up to 75-kHz PWM frequency for low inductance motor support
- Accurate LDO (AVDD) 3.3-V ±3%, 50-mA support with AVDD connected to VREG
- Independent driver shutdown path (DRVOFF)
- Spread spectrum for EMI mitigation
- A suite of integrated protection features
- Supply under-voltage lockout (UVLO)
- Motor lock detection (3 different types)
- Over-current protection (OCP)
- Thermal shutdown (TSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over I 2C interface
The MCF8329A provides a single-chip, code-free sensorless FOC solution for applications driving brushless-DC motors (BLDC) or Permanent Magnet Synchronous motor (PMSM). The MCF8329A provides three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The device generates the correct gate drive voltages using an internal charge pump and enhances the high-side MOSFETs using a bootstrap circuit. A trickle charge pump is included to support a 100% duty cycle. The MCF8329A can operate from a single power supply and supports a wide input supply range of 4.5 to 60 V.
The algorithm configuration can be stored in non-volatile EEPROM, which allows the device to operate stand-alone once it has been configured. Motor current is sensed using an integrated current-sensing amplifier supporting a single external shunt resistor. MCF8329A integrates a large number of protection features, 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 | MCF8329A Sensorless Field Oriented Control (FOC)Three-phase BLDC Gate Driver datasheet | PDF | HTML | 2023/11/28 | ||
| 應用說明 | Getting Started with MOTORSTUDIO (Rev. A) | PDF | HTML | 2026/6/9 | |||
| 應用說明 | MCF83xx - Open Loop to Closed Loop Handoff Tuning | PDF | HTML | 2025/4/15 | |||
| 應用說明 | How to Program I2C for MCx83xx Device Family | PDF | HTML | 2025/3/24 | |||
| 應用說明 | Motor Pre-Startup Tuning for MCx83xx | PDF | HTML | 2025/3/24 | |||
| 應用說明 | MCF83xx and MCT83xx EEPROM Read and Write Procedure | PDF | HTML | 2025/3/13 | |||
| 使用指南 | MCF8329A Tuning Guide | PDF | HTML | 2024/11/5 | |||
| Product overview | Cordless Vacuum Cleaner BLDC Motor Efficiency Test Data vs Competitor F | PDF | HTML | 2024/10/21 |
設計與開發
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MCF8329EVM — 適用於 60V 無感測器 FOC 三相 BLDC 閘極驅動器的 MCF8329 評估模組
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此產品會利用內部充電幫浦產生正確的閘極驅動電壓，並利用靴帶式電路強化高壓側 MOSFET。隨附涓流電荷泵以支援 100% 工作週期。閘極驅動器架構支援最高 1A 源極與 2A 汲極的峰值閘極驅動電流。其包括板載微控制器 MSP430FR2355，可用於介接 Motor Studio 應用。
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。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (REE) | 36 | Ultra Librarian |