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 | MCF8329A 无传感器磁场定向控制 (FOC) 三相 BLDC 栅极驱动器 数据表 | PDF | HTML | 英语版 | PDF | HTML | 2022-3-1 |
| 应用手册 | 开始使用 MOTORSTUDIO | PDF | HTML | PDF | HTML | 2026-6-18 | ||
| 应用手册 | MCF83xx - 开环到闭环切换调优 | PDF | HTML | 英语版 | PDF | HTML | 2025-5-4 | |
| 应用手册 | MCx83xx 器件系列 I2C 编程方法 | PDF | HTML | 英语版 | PDF | HTML | 2025-4-21 | |
| 应用手册 | 针对 MCx83xx 的电机预启动调优 | PDF | HTML | 英语版 | PDF | HTML | 2025-4-21 | |
| 应用手册 | MCF83xx 和 MCT83xx EEPROM 读取和写入程序 | PDF | HTML | 英语版 | PDF | HTML | 2025-3-25 | |
| 用户指南 | MCF8329A 调优指南 | PDF | HTML | 英语版 | PDF | HTML | 2024-11-6 | |
| 产品概述 | 无线真空吸尘器 BLDC 电机与竞品器件 F 的效率测试数据比较 | PDF | HTML | 英语版 | PDF | HTML | 2024-10-22 |
设计与开发
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MCF8329EVM — MCF8329 60V 三相无传感器 FOC BLDC 栅极驱动器评估模块
MCF8329 评估模块 (EVM) 是用于开发 MCF8329A 的平台，该器件是一款 4.5V 至 60V 三相无刷直流栅极驱动器，具有适用于电机驱动应用的无代码无传感器磁场定向控制 (FOC)。此器件具有三个半桥栅极驱动器，每个驱动器都能够驱动高侧和低侧 N 沟道功率 MOSFET。
该器件使用内部电荷泵生成合适的栅极驱动电压，使用自举电路增强高侧 MOSFET。具有涓流电荷泵，支持 100% 占空比。此栅极驱动架构支持高达 1A 的栅极驱动峰值拉电流和 2A 的栅极驱动峰值灌电流。该器件包括一个板载微控制器 MSP430FR2355，用于连接 Motor Studio 应用程序。
MOTORSTUDIO — Motor Studio GUI for tuning and evaluating BLDC motor drivers
Motor Studio 是一款易于使用的图形用户界面 (GUI)，可简化我们的无刷直流 (BLDC) 电机驱动器的调优过程，从而减少器件评估和产品开发时间。GUI 允许用户快速旋转电机并优化电机运行的各个阶段，从而实现更高的电机性能、稳定的电机启动和极低的噪声。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WQFN (REE) | 36 | Ultra Librarian |