TLV62090 / SW absolute value

Sho Ogane

Other Parts Discussed in Thread: TLV62090

Hi all,

I saw Absolute Maximum Ratings of TLV62090.
SW absolute range is 0.3~Vin+0.3V.

However PWM and PFM Operations of Vsw is about -1.8V under voltage.
Is this operation wave AC wave?

Please tell me the AC absolute range of SW voltage.

※My customer check Vsw is about -0.67V@50ns.
Does this device break?

Best Regards,
Sho

TLV62090 SW opration.pdf

over 9 years ago

0 Chris Glaser over 9 years ago

TI__Guru**** 150610 points

This app note, found on the product page, explains this: www.ti.com/.../slva494a.pdf

0 Sho Ogane over 9 years ago in reply to Chris Glaser

Genius 5575 points

Hi Chris

Thank you for your support.

I confirmed how to measure Vsw pin,
my customer measured this way.

I wouldn't like to say "this device don't break." because I can't guarantee this device.

Please give me this provision.

Best Regards,
Sho

0 Chris Glaser over 9 years ago in reply to Sho Ogane

TI__Guru**** 150610 points

Thank you for reading the app note. One part of it was to explain how to measure these types of signals.

But the other part of it was to explain that this waveform is clearly not a DC one. And the abs max table is for DC ratings. So, such a waveform does not violate any rating of the device.

It is much more important to do a good PCB layout. I can review yours here if you post it.

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TLV62090 / SW absolute value