• RE: “芯”来乍到,求赞、求围观!

    拾肆号产品:小型隔离式栅极驱动器ADuM4120和ADuM4121

    小型隔离式栅极驱动器ADuM4120和ADuM4121系列,专门针对SiC(碳化硅)和GaN(氮化镓)等电源开关技术所需的更高开关速度和系统尺寸限制而设计,同时仍然提供对IGBT(绝缘栅双极型晶体管)和MOSFET(金属氧化物半导体场效应晶体管)配置的开关特性的可靠控制。

    ADuM4120和ADuM4121系列利用ADI成熟的iCouplerRegistered隔离技术,结合高速CMOS和与单芯片变压器技术,可实现超低传播延迟,且不影响共模瞬变抗扰度…

  • RE: ADI芯情2017大回顾,有奖认领属于你的“好芯事”

    小型隔离式栅极驱动器ADuM4120 /1,提供下一代电源开关技术解决方案

    ADuM4120 /1 系列可实现超低传播延迟,且不影响共模瞬变抗扰度 (CMTI) 性能。 ADuM4120 /1 可在高温范围和高工作电压下工作,非常适合改进太阳能逆变器、电机控制器和工业逆变器应用的能源效率和时序性能稳定性。

    产品详情:

    http://www.analog.com/cn/products/interface-isolation/isolation/isolated-gate-drivers/ADuM4120…

  • Compliance of IEC61010-1 and VDE0884-10

    Hello,

     

    I am confused about the safety ratings of the part ADuM4120. Its datasheet states reinforced insulation for a working voltage of 400Vrms to meet IEC61010-1, while the rating for reinforced insulation with VDE0884-10 is 849Vpeak.

     

    According…

  • RE: Question about ADuM3221A

    Hello Kazu,

    The schematic you have drawn is correct, and a possible implementation of driving GaN. I don't recommend using the ADuM3221, though, for a few reasons:

    1) The CMTI is only 25 kV/µs, and GaN usually switches at a very fast slew rate

  • RE: ADuM4122

    Thank you  RSchnell,  

      My mistake R2 connection, the idea was to put R2 in series to gate´s.to see SR control.

       I see, ADuM4120 seem a better option.

    Thank you.

  • RE: Miller clamp on the ADuM4121

    No, If the Miller clamp is not being used, it is recommended to short it to GND2.

    However it should be noted that the ADuM4120 has similar performance to the ADuM4121 and has a smaller package so could be used in place. 

  • RE: ADUM3123 Fsw maximum question?

    Hello,

    The ADuM3123 is capable of operating at 6.78 MHz, but there will be significant self heating within the IC. The ADuM3123 also has a minimum pulse width of 50 ns, so if the design requires pulses shorter than that, there may be an issue.

    The ADuM3123…

  • RE: can ADuM5230 be used to drive IGBT FS450R12OE4 ?

    Hello Chenmj,

    As Brian has pointed out, the output voltage swing requirements for your system make the ADuM5230 not a suitable match. Also, let's estimate the power required to operate the gate drive. using total gate charge, we can calculate:

  • ADI最新中文资料大汇总(2017年10月)

    最新中文资料汇总来啦~

    系统解决方案、应用笔记、数据手册、技术文章、电路笔记……一站式下载!

    系统方案精选 APM

    数据手册 DATASHEET

    应用笔记 APPLICATION NOTE

    电路笔记 Circuit from the Lab (CFTL)

  • RE: [ADuM7223]How to design High-Side voltage when MOSFET gated 200V?

    Hello,

    Yes, the Vgs voltage relative to the source node can be run negative since GNDa is floating. This is one of the advantages of digitally isolated gate drivers as compared to high-voltage level shifters. The VDDA/VOA/GNDA pins are on one silicon…