UCC27517: UCC27517 LatchUp

K.Hamamoto

Guru 12155 points

Part Number: UCC27517
Other Parts Discussed in Thread: STRIKE

There is no LatchUp data on the datasheet. Do you have the data?

Regards,

Koji Hamamoto

over 8 years ago

0 Peter Meaney over 8 years ago

TI__Mastermind 31580 points

Hi Hamamoto-san,

I have asked one of the drivers team application engineers to respond to the post. Can you please clarify what you mean by the term latch-up?

Thanks

Peter

0 Richard Herring over 8 years ago

TI__Mastermind 23015 points

Hello Hamamoto-san,

I did confirm the UCC27517 passed latch up testing during the device qualification testing. I will have to confirm the test conditions of the latch up testing performed.

Richard Herring

0 K.Hamamoto over 8 years ago in reply to Richard Herring

Guru 12155 points

Hi Richard-san, Peter-san

Thank you for your support.

Our customer would like to know the condition of the latch-up testing as well.

Regards,

Koji Hamamoto

0 Richard Herring over 8 years ago in reply to K.Hamamoto

TI__Mastermind 23015 points

Hello Hamamoto-san,

I reviewed the internal test procedure for the latch up testing, to determine the test conditions. Our internal qualification for latch up references JEDEC JESD78, IC Latch Up Test.

For the UCC27517 the test conditions of the latch up will be:

Input and output pins: Positive and negative strike current +/-100mA. Voltage limits: +20V, -5V. (The source is always limited to 100mA)

VDD: Positive and negative strike current +/-100mA. Voltage limits: +20V, -0.3V. (The source is always limited to 100mA).

After the strike current: IDD and pin current monitored to be <1.4x IDD and pin pre test currents.

0 K.Hamamoto over 8 years ago in reply to Richard Herring

Guru 12155 points

Richard-san

Thank you very much for your prompt reply.

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UCC27517: UCC27517 LatchUp