TPS62400: Extended SW to GND absolute maximum rating spec for <50ns

Kazuhiko Hirano

Part Number: TPS62400
Other Parts Discussed in Thread: LM2670,

Hello,

About SW to GND absolute maximum rating spec, LM2670 datasheet specifies not only dc voltage but also <50ns pulse as follows.

About TPS62400, my customer would also like to know the extended SW to GND absolute maximum rating spec for <50ns.

Best regards,

K.Hirano

over 4 years ago

0 Stefano Panaro over 4 years ago

TI__Expert 7685 points

Hi Hirano,

Thanks for you question.

I will check and give you an update by tomorrow.

Thanks,

Stefano

All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and is subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml).

0 Kazuhiko Hirano over 4 years ago in reply to Stefano Panaro

TI__Genius 14918 points

Stefano,

My customer is concerned of negative voltage limit of SW to GND.
Datasheet 7.1 specified it is -0.3V minimum, but looking at Figure 38 – 41 it exceeds this negative limit looking at Figure 38 – 41 (SW undershoot looks ~-5V.)
So, please let me know the extended minimum negative voltage limit of SW to GND for short pulse.

Best regards,

K.Hirano

+1 Stefano Panaro over 4 years ago in reply to Kazuhiko Hirano

TI__Expert 7685 points

Hi Hirano,

I have sent you the data by email.

I will close this thread now.

Feel free to reply below if you need further support.

Thanks,

Stefano

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TPS62400: Extended SW to GND absolute maximum rating spec for <50ns