Questions for NI9401

[JustinZZJ]

Hi everyone,

I have two questions regarding NI9401:

1. Is there a signal breakout board for NI9401 module (for separating channels from the d-sub connector) available for purchase, or we need to design our own breakout board?

2. Does anyone have experience using NI9401 to input to Power Integrations gate driver core?

I look forward to your reply, thanks!

[crossrulz]

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@JustinZZJ wrote:

Hi everyone,

I have two questions regarding NI9401:

1. Is there a signal breakout board for NI9401 module (for separating channels from the d-sub connector) available for purchase, or we need to design our own breakout board?

2. Does anyone have experience using NI9401 to input to Power Integrations gate driver core?

I look forward to your reply, thanks!

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1. I see a recommendation for a NI-9924 terminal block.

2. My main concern would be the current needed for whatever device you are using.  The NI-9401 is rated for a maximum output current (to maintain TTL levels) of 2mA.

[JustinZZJ]

Thank you so much! This is very helpful.

The datasheet for gate driver says the input bias current is 190 uA and turn-on threshold is 2.6 V. Do you think NI9401 is suitable? Is there anything else that I should pay attention to?

[crossrulz]

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@JustinZZJ wrote:

The datasheet for gate driver says the input bias current is 190 uA and turn-on threshold is 2.6 V. Do you think NI9401 is suitable? Is there anything else that I should pay attention to?

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Sounds like you should be just fine.

[JustinZZJ]

Thank you!