MCT8329A
- Three-phase BLDC gate driver with
integrated sensorless motor control algorithm
- Code-free high speed Trapezoidal Control
- Supports up to 3 kHz (electrical frequency)
- Very fast startup time (<50 ms)
- Fast Deceleration (<150 ms)
- Supports 120° or 150° modulation to improve acoustic performance
- Forward and reverse windmilling support
- Analog, PWM, freq. or I2C based control input
- Configurable motor startup and stop options
- Optional closed loop speed or power control, open loop voltage control
- 5-point configurable reference profile support
- Anti-voltage surge prevents overvoltage
- Variable monitoring through DACOUT
- 65-V Three phase half-bridge 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 VPVDD = 24-V, TA = 25°C
- Speed loop accuracy: < 3% with internal clock
- Supports up to 100-kHz PWM frequency
- 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
- Suite of Integrated protection
features
- Supply undervoltage lockout (UVLO)
- Motor lock detection (3 different types)
- Overcurrent protection (OCP)
- Thermal shutdown (TSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over I2C interface
The MCT8329A provides a single-chip, code-free sensorless trapezoidal solution for applications requiring high speed operation or very fast startup time for three phase brushless-DC motors. The device provide three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The device generates 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 100% duty cycle. The gate drive architecture supports peak gate drive currents up to 1-A source and 2-A sink. The MCT8329A can operate from a single power supply and supports a wide input supply range of 4.5 to 60 V.
Sensorless trapezoidal control is highly configurable through register settings in a non-volatile EEPROM (MCT8329A1I) ranging from motor start-up behavior to closed loop operation, which allows the device to operate stand-alone once it has been configured. Motor current is sensed using an integrated current sensing amplifier supporting single external shunt resistor. The device receives a speed command through a PWM input or analog voltage or variable frequency square wave or I2C command. There are a large number of protection features integrated into the MCT8329A, 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 | MCT8329A 高速无传感器梯形控制三相 BLDC 栅极驱动器 数据表 | PDF | HTML | 英语版 | PDF | HTML | 2022-2-28 |
| 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 | |
| 技术文章 | Selecting the right level of integration to meet motor design requirements | PDF | HTML | 2024-1-4 | |||
| 技术文章 | Top 3 ways to reduce audible noise in motion control applications | PDF | HTML | 2023-12-21 | |||
| 应用简报 | 适用于可扩展系统的高效、无代码、无传感器 BLDC 电机驱动器 | PDF | HTML | 英语版 | 2023-5-4 | ||
| 证书 | MCT8329EVM EU RoHS Declaration of Conformity (DoC) | 2022-12-16 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
MCT8329EVM — MCT8329 三相无传感器梯形 BLDC 栅极驱动器评估模块
MCT8329 是一款具有无代码无传感器梯形控制的 4.5V 至 60V 三相 BLDC 栅极驱动器 IC，适用于电机驱动应用。它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 EVM 包含用于连接 MCT8329AEVM GUI 的板载 MSP430 (MSP430FR2355)。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WQFN (REE) | 36 | Ultra Librarian |