MCF8315C
- Three-phase BLDC motor driver with integrated sensorless motor control algorithm
- Code-free Field Oriented Control (FOC)
- Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET)
- 5-point configurable speed profile support
- Windmilling support through forward resynchronization and reverse drive
- Analog, PWM, freq. or I2C based speed input
- Configurable motor start-up and stop options
- Anti-voltage surge (AVS) protection
- Improved acoustic performance with automatic dead time compensation
- Variable monitoring through DACOUT pin
- 4.5 to 35V operating voltage (40V abs max)
- High (peak) output current capability: 4A (RRY), 3.5A (PWP)
- Low MOSFET on-state resistance
- RRY: RDS(ON)(H+L) at TJ=25°C: 250mΩ(typ.)
- PWP: RDS(ON)(H+L) at TJ=25°C: 265mΩ(typ.)
- Low power sleep mode: Refer
- 5µA (maximum) at VVM = 24V, TA = 25°C
- Speed loop accuracy: 3% with internal clock and 1% with external clock reference
- Customer-configurable non-volatile memory (EEPROM) to store device configuration
- Supports up to 60-kHz PWM frequency for low inductance motor support
- Does not require external current sense resistors; uses built-in current sensing
- Built-in 3.3V, 20mA LDO regulator
- Built-in 3.3V/5V, 170mA buck regulator
- Dedicated DRVOFF pin to disable (Hi-Z) outputs
- Spread spectrum and slew rate for EMI mitigation
- A suite of integrated protection features
- Supply under voltage lockout (UVLO)
- Supply over voltage protection (OVP)
- Motor lock detection (5 different types)
- Over current protection (OCP)
- Thermal warning and shutdown (OTW/TSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over I2C interface
The MCF8315C provides a single-chip, code-free sensorless FOC solution for customers driving speed-controlled 12 to 24V brushless-DC motors (BLDC) or Permanent Magnet Synchronous motor (PMSM) up to 4A peak current. The MCF8315C integrates three ½-bridges with 40V absolute maximum capability and a low RDS(ON) of 250/265mΩ (high-side + low-side FETs). MCF8315C integrates power management circuits including a voltage-adjustable buck regulator (3.3V/5V, 170mA) and LDO (3.3V/20mA) that can be used to power external circuits.
The FOC algorithm configuration can be stored in non-volatile EEPROM, which allows the device to operate stand-alone once it has been configured. The device receives a speed command through a PWM input, analog voltage, variable frequency square wave or I2C command. There are a large number of protection features integrated into the MCF8315C, intended to protect the device, motor, and system against fault events.
MCF8315C is available in two packages: 32-pin 6x4mm wettable-flank QFN (RRY) and 24-pin 7.8x6.4mm HTSSOP (PWP).
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 | MCF8315C Sensorless Field Oriented Control (FOC) Integrated FET BLDC Driver datasheet (Rev. A) | PDF | HTML | 2024/7/10 | ||
| 應用說明 | Getting Started with MOTORSTUDIO (Rev. A) | PDF | HTML | 2026/6/9 | |||
| 應用說明 | SmartTune User Guide: How to Quickly Setup and Spin Your 3-Phase BLDC Motor | PDF | HTML | 2025/9/18 | |||
| 應用說明 | Develop algorithms and tools based on MSPM0 MCU that supports MCF831x offline burning | PDF | HTML | 2025/6/10 | |||
| 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 | How to Optimize MCF8315 Hardware Design in Fan Application | PDF | HTML | 2025/3/17 | |||
| 應用說明 | MCF83xx and MCT83xx EEPROM Read and Write Procedure | PDF | HTML | 2025/3/13 | |||
| 應用說明 | PCB Design Guidelines for MCF8316C and MCF8315C | PDF | HTML | 2024/8/21 | |||
| 證書 | MCF8315PWPEVM EU Declaration of Conformity (DoC) | 2024/6/20 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
MCF8315EVM — 適用三相無感測器 FOC 整合式 MOSFET BLDC 馬達驅動器的 MCF8315 評估模組
MCF8315 有三個半全橋整合式 MOSFET 驅動器，適用 4.5V 至 35V、5-A 尖峰電流驅動之三相無刷 DC (BLDC) 馬達的無感測器 FOC 控制。MCx8315 整合降壓穩壓器，可透過可編程穩壓電源支援 200mA。
此 EVM 包括板載 MSP430 (MSP430FR2355)，可用做與 Motor Studio (MOTORSTUDIO) GUI 連接的介面。
MCF8315PWPEVM — 適用於 24 接腳塑膠小型封裝 (PWP) 的 MCF8315 評估模組
MCF8315RRYEVM — 適用於 32 針腳 WQFN (RRY) 封裝的 MCF8315 評估模組
MCF8315 評估模組 (EVM) 可讓使用者評估採用 32 針腳 WQFN (RRY) 封裝的 MCF8315 馬達驅動器性能。EVM 包含板載 FTDI 晶片，可將 USB 通訊從 micro-USB 連接器轉換至 UART。板載 MSP430FR2355 微控制器 (MCU) 可將 UART 通訊轉換為控制訊號，並傳送至 MCF8315 裝置。具備許多使用者可選擇的跨接器、電阻器、連接器和測試點，有助於評估 MCF8315 裝置的眾多功能，並配置裝置的專屬設定。
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。
BLDC-MCF831XC-TO-MCF831XD-CONVERSION-CALC — Register Map conversion tool - from MCF831xC to MCF831xD
BLDC-MOSFET-THERMAL-CALC — BLDC integrated MOSFET driver thermal calculator tool
TIDA-010951 — 具有 85 至 265VAC、0.92PF 單級 PFC 的 24V、35W 無感測器 FOC BLDC 參考設計
為了實現能源效率，吊扇和通風風扇從簡單的 AC 感應馬達移至無刷 DC (BLDC) 馬達。此參考設計透過使用 85 至 265VAC 的通用主電源供應器輸入，利用單級功率因數修正隔離返馳轉換離線電壓，以因應前述更高效率及功率因數的挑戰，且可在 24VDC 下達到最高 0.92pF。此設計也結合了完全整合且受到妥善保護的單晶片，可進行無感測器磁場定向控制 (FOC) 無刷馬達控制。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 24 | Ultra Librarian |
| WQFN (RRY) | 32 | Ultra Librarian |