MCF8315D
- Three-phase BLDC motor driver
with integrated sensorless motor control algorithm
- Code-free Field Oriented Control (FOC)
- Speed, current, power and voltage control
- Forward and reverse windmilling support
- Configurable power and speed limit
- Lead angle adjustment for high efficiency
- Improved acoustic performance with soft-start, soft-stop and dead time compensation
- Offline motor parameter measurement with Motor Parameter Extraction Tool (MPET)
- Analog, PWM, freq. or I2C based speed input
- Configurable motor start-up and stop options
- Flux weakening for high speed operation
- Anti-voltage surge (AVS) protection
- Variable monitoring through DACOUT pins
- 4.5 to 35V operating voltage (40V abs max)
- High output current capability: 4A peak
- Low MOSFET on-state resistance
- RGF: RDS(ON)(H+L) at TJ=25°C: 240mΩ(typ.)
- 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
- Configurable EEPROM with R/W security to store device configuration
- 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, PWM dithering and slew rate for EMI reduction
- Suite of integrated protection
features
- Supply under voltage lockout (UVLO)
- Supply over voltage protection (OVP)
- Motor lock detection
- Configurable current limit
- Thermal warning and shutdown (OTW/TSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over I2C interface
The MCF8315D provides a single-chip, code-free sensorless FOC device for customers driving speed-controlled 12 to 24V brushless-DC motors (BLDC) or Permanent Magnet Synchronous motor (PMSM) up to 4A peak current. The MCF8315D integrates three ½-bridges with 40V absolute maximum capability and a very low RDS(ON) of 240/250/265mΩ (high-side + low-side FETs). MCF8315D 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 the device 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 MCF8315D, is intended to protect the device, motor, and system against fault events.
Documentation for reference:
- Refer MCF8315D EVM User’s Guide
- Refer to the MCF8315D EVM GUI
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 | MCF8315D Sensorless Field Oriented Control (FOC) Integrated FET BLDC Driver datasheet | PDF | HTML | 2024/12/17 | ||
| 應用說明 | Getting Started with MOTORSTUDIO (Rev. A) | PDF | HTML | 2026/6/9 | |||
| 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 | |||
| 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)。
MCF8315PWPEVM — 適用於 24 接腳塑膠小型封裝 (PWP) 的 MCF8315 評估模組
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 |