Microchip公司的MCP8063是高度集成的三相正弦无传感器无刷马达驱动器,具有180°正弦驱动,高扭矩输出和静音驱动,工作电压2V-14V,速度控制可通过脉宽调制(PWM)或电源调制(PSM)取得.内置了频率发生器,锁住保护和自动重起电路,过流保护,过压保护和热关断保护,主要用在安静笔记本CPU/GPU冷却风扇,12V三相BLDC马达和通风设备系统.本文介绍了MCP8063主要特性,框图,风扇马达驱动应用电路以及12V三相BLDC无传感器风扇控制器演示板主要特性,电路图,材料清单和PCB设计图.
The MCP8063 device is a highly integrated 3-phase,full-wave sensorless driver for brushless motors. Itfeatures a 180° sinusoidal drive, high torque output,and silent drive. Its integrated features and the widepower supply range (2V to 14V) make the MCP8063 anideal candidate for a broad range of motorcharacteristics, requiring no external tuning. Speedcontrol can be achieved through either power supplymodulation (PSM) or pulse-width modulation (PWM).
Due to the compact packaging and minimum bill ofmaterials (power transistors integrated, no Hall sensor,no external tuning), the MCP8063 is optimized for fanapplications that require high efficiency and lowacoustic noise at competitive costs. Frequencygenerator output enables precision speed control inclosed-loop applications. The MCP8063 driver includes a Lock-Up Protection mode, which turns offthe output current when the motor is under lockcondition, and an automatic recovery that enables thefan to restart when the lock condition is removed.
Features such as motor overcurrent limitation andthermal shutdown protection improve motor systemreliability without additional efforts from designengineers.The MCP8063 is available in a compactthermally-enhanced 8-lead 4 mm x 4 mm DFNpackage with exposed pad.

MCP8063主要特性:
• Automotive AEC-Q100 Qualified, PPAP availableupon request
• Position Sensorless BLDC Drivers (no HallSensor required)
• 180° Sinusoidal Drive for High Efficiency and LowAcoustic Noise
• Supports 2V to 14V Power Supplies
• Speed Control through Power Supply Modulation(PSM) and/or Pulse-Width Modulation (PWM)
• Built-In Frequency Generator (FG output signal)
• Built-In Lock-Up Protection and AutomaticRecovery Circuit (external capacitor notnecessary)
• Built-In Overcurrent Limitation (1.5A)
• Built-In Overvoltage Protection
• Built-In Thermal Shutdown Protection
• Thermally Enhanced 8-Lead 4 mm x 4 mm DFNPackage with Exposed Pad
• 23 kHz PWM Output Frequency
• No External Tuning Required
• Optimized for Fan Cooling Systems

MCP8063典型应用:
• Silent Notebook CPU/GPU Cooling Fans
• Air Ventilation System
• 12V 3-Phase BLDC Motors

图1.MCP8063框图

图2.MCP8063风扇马达驱动应用电路

MCP8063 12V三相BLDC无传感器风扇控制器演示板
The MCP8063 12V 3-Phase BLDC Sensorless Fan Controller Demonstration Kit allows the control and monitoring of Microchip 12V fan driver devices, such as the MCP8063 or MTD6501, using a PC software connected to the demo board via a USB connection. The MCP8063 12V 3-Phase BLDC Sensorless Fan Controller Demonstration Board software provides several features, such as fan driver power supply control and monitoring, pulse-width modulation (PWM) control, and speed and current consumption monitoring. It also allows automatic application testing.

MCP8063风扇控制器演示板主要特性:
• PC software allows controlling and monitoring the MCP8063 3-Phase Fan Controller via USB connection
• VDD voltage control and IDD current measurement
• PWM control for speed setting
• FG measurement for speed monitoring
• Automated test measurement

MCP8063 12V三相BLDC无传感器风扇控制器演示板主要元件:
• PIC24FJ64GB002 microcontroller for USB connection, PWM generation,FG frequency measurement, VDD measurement, activation of other signals andcomponent communication
• MCP1824 LDO regulator to provide 3.3V to the microcontroller
• MCP19110 buck regulator to provide power supply to the fan driver
• MCP3421 Delta-Sigma ADC for sensing the fan driver current consumption

图3.MCP8063 12V三相BLDC无传感器风扇控制器演示板外形图

MCP8063 12V三相BLDC无传感器风扇控制器演示板套件(ADM00575)包括:

• MCP8063 12V 3-Phase BLDC Sensorless Fan Controller Demonstration Board
(ADM00532)
• 3 x MCP8063 Daughter Boards (ADM00535)
• One mini-USB cable
• Important Information Sheet

图4.MCP8063 12V三相BLDC无传感器风扇控制器演示板电路图
MCP8063 12V三相BLDC无传感器风扇控制器演示板(ADM00532)材料清单:



图5.演示板ADM00532 PCB设计图(1):顶层丝印图

图6.演示板ADM00532 PCB设计图(2):顶层丝印和铜线图

图7.演示板ADM00532 PCB设计图(3):顶层铜线图

图8.演示板ADM00532 PCB设计图(4):底层铜线图

图9.演示板ADM00532 PCB设计图(5):底层铜线和丝印图

图10.演示板ADM00532 PCB设计图(6):底层焊接图

图11.演示板子板ADM00535电路图
演示板子板ADM00535材料清单: