microchip公司的MIC4609是600V三相MOFET/IGBT驱动器,栅极驱动电压高达20V,带可编重起延迟的过流掩护,1A栅极驱动器,输入滤波器时间300ns,结温-40℃到+125℃,主要用在3相马达驱动,现场控制(FOC),白色家电,无刷直流风扇.本文先容了MIC4609主要特点,功能框架图和应用电路,以及MIC4609马达驱动评估板主要特点,电路图,质料清单和PCB设计原理图.
The MIC4609 features a 300 ns typical input filteringtime to prevent unwanted pulses and a 550 ns ofpropagation delay.The MIC4609 has TTL inputthresholds.The robust operation of the MIC4609 ensures that theoutputs are not affected by supply glitches, High Side(HS) ringing below ground,or HS slewing withhigh-speed voltage transitions.Undervoltageprotection is provided on both the low-side andhigh-side drivers.
The MIC4609 is available in a 28-pin wide SOICpackage.The MIC4609 has an operating junctiontemperature range of -40℃ to +125℃.
MIC4609主要特点:
• Gate Drive Supply Voltage up to 20V
• Overcurrent Protection with ProgrammableRestart Delay
• 1A Gate Drivers
• Dual (HI/LI) Inputs per Phase
• Fault Signal Asserts on Overcurrent andVDD UVLO
• TTL Input Thresholds
• 300 ns Typical Input Filtering Time
• Shoot-Through Protection
• Low-Power Consumption
• Supply Undervoltage Protection
• -40℃ to +125℃ Junction Temperature Range
MIC4609典范应用:
• 3-Phase Motor Drive
• Field-Oriented Control (FOC)
• White Goods Appliances
• Brushless DC Fans
图1.MIC4609功能框架图
图2.MIC4609典范应用电路:300V 3相马达驱动器
图3.MIC4609典范应用电路:A相马达驱动器
MIC4609马达驱动评估板
The MIC4609 motor driver evaluation board demonstrates the capabilities of Microchip’s MIC4609 High Voltage, 3-Phase motor gate driver. The evaluation board contains the MIC4609 3-Phase driver, (6) IGBTs configured as a 3-Phase bridge, an overcurrent protection circuit and current/voltage sensing that can be fed back to an external controller for closed loop control of a motor.
MIC4609马达驱动评估板主要特点:
Direct motor connection to the board
6 independent PWM input channels
Current sensing on 2 phases
Overcurrent protection
Phase and bus voltage sensing
图4.MIC4609马达驱动评估板外形图
图5.MIC4609马达驱动评估板电路图
MIC4609马达驱动评估板质料清单:
图6.MIC4609马达驱动评估板PCB设计原理图:顶层
图7.MIC4609马达驱动评估板PCB设计原理图:顶层铜线
图8.MIC4609马达驱动评估板PCB设计原理图:中间层1
图9.MIC4609马达驱动评估板PCB设计原理图:中间层2
图10.MIC4609马达驱动评估板PCB设计原理图:底层铜线
图11.MIC4609马达驱动评估板PCB设计原理图:底层
详情请复制打开此衔接地址:
http://ww1.microchip.com/downloads/en/DeviceDoc/20005531A.pdf
和http://ww1.microchip.com/downloads/en/DeviceDoc/50002478A.pdf
以及http://ww1.microchip.com/downloads/en/DeviceDoc/MIC4609%20Eval%20Board%20Layer%20Layouts.pdf
20005531A.pdf
50002478A.pdf
MIC4609 BOM.pdf
MIC4609 Eval Board Layer Layouts.pdf
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