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…

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iCoupler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…

Hi Rschnell

Thank you for your reply.

I understood.

Best regards

Kawa

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

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.

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…