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我正在寻找这两个MOSFET的驱动器IC, FDD7N20TMCT-ND和FQD7P20TMCT-ND。 我的逻辑由CPLD产生,为3.3V。 我在想使用MD1822K6-GCT-ND。 这些MOSFET会好吗? 或者你能推荐任何其他门司机吗? 谢谢,感谢您的帮助! 以上来自于谷歌翻译 以下为原文 Hello, I am looking for a driver IC for these two MOSFET, FDD7N20TMCT-ND and FQD7P20TMCT-ND. My logic is generated by CPLD which is 3.3V. I am thinking to use MD1822K6-GCT-ND. Would these be fine for this MOSFET? Or Can you recommend any other gate driver? Thank you, Appreciate your help! |
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5个回答
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由于您正在查看的mosfet(FDD7N20TMCT-ND和FQD7P20TMCT-ND)的Vgs(th)为3.0(最小)到5.0(最大)V且驱动器在MD1822K6-GCT-ND上的输出可能不同于
-5至+ 5V它们应该是兼容的部件。 数据表 md1822.pdf(227.7 KB) FDD7N20TM FQD7P20TM 以上来自于谷歌翻译 以下为原文 Since the mosfets that you are looking at (FDD7N20TMCT-ND and FQD7P20TMCT-ND) have a Vgs(th) of 3.0(min) to 5.0(max) V and the Driver has an output on the MD1822K6-GCT-ND can vary from -5 to +5V they should be compatible parts. Data sheetsmd1822.pdf (227.7 KB) FDD7N20TM FQD7P20TM |
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好的,谢谢,应用电路得到-5V到+ 5V,是第1页提到的那个?
我问这个是因为MD1822第5页的时序图显示了0到10V的输出。 以上来自于谷歌翻译 以下为原文 Ok thanks, and the application circuit to get -5V to+5V, is the one mentioned on page 1? I am asking this because Timing diagram of MD1822 page.5 shows 0 to 10V output. |
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它将基于第1页上提到的示例
作为示例,输入逻辑电平可以是0和1.8V,控制逻辑可以由电源供电 + 5.0和-5.0V,输出L和H电平可以在-5.0到+ 5.0V的范围内变化。 您的输出High min将是Vss +2和Max of Vdd 您的输出低最小值为Vss,最大值为Vdd-4.0 这些值取决于给定的输入值。 绝对最大值列在第2页的顶部。我相信时序图将使用10V Vdd和0V Vss,如第2页下半部分的直流电气特性中所述。 以上来自于谷歌翻译 以下为原文 It would be based off the example noted on page 1 As an example, the input logic levels may be 0 and 1.8V, the control logic may be powered byYour output High min would be Vss +2 and Max of Vdd Your output Low min would be Vss and a Max of Vdd-4.0 These values are subject to the input values given. Absolute max is listed on the top of page 2. I believe the timing diagram would be using the 10V Vdd and 0V Vss as stated in the DC Electrical Characteristics on the bottom half of page 2. |
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嗨罗伯特,
这是有道理的,感谢您解释,所以为了驱动这些MOSFET,我需要-5V至+ 5V逻辑, 我将+ VDD和+ VH连接到+ 5V电源,VL& VSS连接到-5V电源,它应该工作。 再次感谢您的帮助! 以上来自于谷歌翻译 以下为原文 Hi Robert, That makes sense, Thanks for explaining, So to drive those MOSFET, I would need -5V to +5V logic, I would connect +VDD and +VH to +5V supply and VL&VSS to -5V supply, it should work then. Thank you once again for your help! |
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Mosfets上的Vgs为3-5V,因此该范围内的任何东西都应该打开它们。
如果您从驾驶员到您的登机口运行0- + 5逻辑,您应该没问题。 以上来自于谷歌翻译 以下为原文 The Vgs on the Mosfets are 3-5V so anything in that range should turn them on. If you are running a 0-+5 Logic from the driver to your gate you should be fine. |
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