原标题：Microchip MIC4609 600V三相MOFET-IGBT驱动方案

　　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保护,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.本文介绍了MIC4609主要特性,功能框图和应用电路,以及MIC4609马达驱动评估板主要特性,电路图,材料清单和PCB设计图.

　　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主要特性:

　　• 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典型应用:

　　• 3-Phase Motor Drive

　　• Field-Oriented Control (FOC)

　　• White Goods Appliances

　　• Brushless DC Fans

　　图1.MIC4609功能框图

　　图2.MIC4609典型应用电路:300V 3相马达驱动器

　　图3.MIC4609典型应用电路: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性:

　　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

　　MIC4609马达驱动评估板材料清单:

　　详情请见:

MIC4609 BOM.pdf

MIC4609 Eval Board Layer Layouts.pdf

20005531A.pdf

50002478A.pdf