MCT8316Z
- Three-phase BLDC motor driver with integrated
Sensored Trapezoidal control
- Hall Sensor based Trapezodial (120°) commutation
- Supports Analog or Digital Hall inputs
- Configurable PWM modulation: Synchronous/Asynchronous
- Cycle-by-cycle current limit to limit phase current
- Supports up to 200-kHz PWM frequency
- Active Demagnetization to reduce power losses
- 4.5-V to 35-V operating voltage (40-V abs max)
- High output current capability: 8-A Peak
- Low MOSFET on-state resistance
- 95-mΩ RDS(ON) (HS + LS) at TA = 25°C
- Low power sleep mode
- 1.5-µA at VVM = 24-V, TA = 25°C
- Integrated built-in current sense
- Doesn’t require external current sense resistors
- Flexible
device configuration options
- MCT8316ZR: 5-MHz 16-bit SPI interface for device configuration and fault status
- MCT8316ZT: Hardware pin based configuration
- Supports 1.8-V, 3.3-V, and 5-V logic inputs
- Built-in 3.3-V (5%), 30-mA LDO regulator
- Built-in 3.3-V/5-V, 200-mA buck regulator
- Delay compensation reduces duty cycle distortion
- Suite of integrated protection features
- Supply undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Motor lock protection
- Thermal warning and shutdown (OTW/OTSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over SPI interface
The MCT8316Z provides a single-chip code-free sensored trapezoidal solution for customers driving 12- to 24-V brushless-DC motors. The MCT8316Z integrates three 1/2-H bridges with 40-V absolute maximum capability and a very low RDS(ON) of 95 mOhms (high-side and low-side combined) to enable high power drive capability. Current is sensed using an integrated current sensing feature which eliminates the need for external sense resistors. Power management features of an adjustable buck regulator and LDO generate the necessary voltage rails for the device and can be used to power external circuits.
MCT8316Z implements sensored trapezoidal control in a fixed-function state machine, so an external microcontroller is not required to spin the brushless-DC motor. The device integrates three analog hall comparators for position sensing to achieve sensored trapezoidal BLDC motor control. The control scheme is highly configurable through hardware pins or register settings ranging from motor current limiting behavior to fault response. The speed can be controlled through a PWM input.
There are a large number of protection features integrated into the MCT8316Z, intended to protect the device, motor, and system against fault events.
Refer Section 9.1 for design consideration and recommendation on device usage.
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 | MCT8316Z Sensored Trapezoidal Integrated FET BLDC Motor Driver 数据表 (Rev. B) | PDF | HTML | 2021-11-16 | ||
| 应用简报 | 利用无刷直流电机简化传感器式电机控制 | PDF | HTML | PDF | HTML | 2026-3-19 | ||
| 应用简报 | MCx8316x 在扫地机器人中的应用 | PDF | HTML | 英语版 | PDF | HTML | 2022-10-26 | |
| 技术文章 | What is “real-time control” and why do you need it? | PDF | HTML | 2022-4-6 | |||
| 技术文章 | Achieving a 360-degree field of view in mechanically scanning lidar with BLDC moto | PDF | HTML | 2022-1-27 | |||
| 应用手册 | Delay and Dead Time in Integrated MOSFET Drivers | PDF | HTML | 2021-8-23 | |||
| 应用手册 | How to Design a Thermally-Efficient Integrated BLDC Motor Drive PCB (Rev. A) | 2017-2-5 |
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）。
MCT8316ZTEVM — 用于传感器型 BLDC 梯形控制评估板的三个半 H 桥集成 MOSFET 驱动器
MCT8316Z 是一款集成三个半 H 桥的 MOSFET 驱动器，用于对具有 12V/24V 直流电压范围、8A 峰值电流驱动的三相无刷直流 (BLDC) 电机进行含传感器梯形控制。它集成了三个用于转子位置检测的模拟霍尔比较器，以实现含传感器梯形 BLDC 电机控制。MCT8316Z 支持降压稳压器，与可编程的稳压电源结合使用可以支持 200mA 电流。
该 EVM 包含用于连接 MCT8316ZTEVM GUI 的板载 MSP430 (MSP430FR2355)。
MCT8316ZXEVM-MSP430FR2355-FW — 适用于 MCT8316Z GUI 的 MSP430FR2355 固件
MCT8316Z-GUI — GUI for the MCT8316ZEVM
MCT8316ZT-GUI — GUI for MCT8316ZTEVM
BLDC-MOSFET-THERMAL-CALC — BLDC integrated MOSFET driver thermal calculator tool
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN (RGF) | 40 | Ultra Librarian |