韌體
MCT8314ZEVM-MSP430FR2355-FW — MSP430 firmware for MCT8314ZEVM compatibility with MCT8314Z GUI
MSP430 firmware for MCT8314ZEVM compatibility with MCT8314Z GUI
產品規格表
MCT8314Z
- Three-phase BLDC motor driver with integrated sensored trapezoidal control
- Hall Sensor based trapezoidal (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 100-kHz PWM frequency
- Automatic synchronous rectification to reduce power losses
- 5.0-V to 35-V operating voltage (40-V abs max)
- High output current capability: 1.5-A Peak
- Low MOSFET on-state resistance
- 575-mΩ RDS(ON) (HS + LS) at TA = 25°C
- Low-power sleep mode
- 1.5-µA at VVM = 24-V, TA = 25°C
- Integrated current limiting eliminates external current sense resistors
- Flexible device configuration options
- MCT8314ZS: 5-MHz 16-bit SPI interface for device configuration and fault status
- MCT8314ZH: Hardware pin-based configuration
- Supports 1.8-V, 3.3-V, and 5-V logic inputs
- Built-in 5-V (5%), 30-mA LDO regulator
- A 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
The MCT8314Z provides a single-chip, code-free sensored trapezoidal commutation device for customers driving 12- to 24-V brushless-DC motors. The MCT8314Z integrates three 1/2-H bridges with 40-V absolute maximum capability and a low RDS(ON) of 575-mΩ (high-side and low-side combined) to enable high power drive capability. The integrated current limiting feature limits motor currents during start-up or high load conditions while eliminating the need for external sense resistors. An integrated 5-V LDO generates the necessary voltage rail for the device and can power external circuits.
MCT8314Z implements sensored trapezoidal control in a fixed-function state machine, so an external microcontroller is not required to spin the brushless DC motor. The MCT8314Z 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 registers 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 MCT8314Z that are designed to protect the device, motor, and system against fault events.
Refer Application Information for design consideration and recommendation on device usage.
技術文件
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檢視所有 1 | 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | MCT8314Z Sensored Trapezoidal Integrated FET BLDC Motor Driver datasheet (Rev. A) | PDF | HTML | 2024年 6月 7日 |
設計與開發
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開發板
MCT8314ZEVM — MCT8314Z 評估模組
MCT8314Z 評估模組 (EVM) 可讓使用者評估 MCT8314Z 馬達驅動器的性能。EVM 包含板載 FTDI 晶片，可將 USB 通訊從 micro-USB 接頭轉換至 UART。板載 MSP430FR2355 微控制器 (MCU) 可將 UART 通訊及板載電位計轉換為控制訊號和 MCT8314Z PWM 輸入的可變工作週期。MCU 也提供適用於 MCT8314Z 裝置 SPI 版本的 SPI 通訊功能。具備許多使用者可選擇的跨接器、電阻器、接頭和測試點，有助於評估 MCT8314Z 裝置的多項功能，並配置裝置的專屬設定。
開發模組 (EVM) 的 GUI
MCT8314Z-GUI — GUI for the MCT8314ZEVM
GUI used to evaluate the MCT8314Z on the MCT8314ZEVM
支援產品和硬體
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RRW) | 24 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點