UCC21521: Enable pin response time

Gerhard2488

Part Number: UCC21521

Hi,

I would like to use the Enable pin on the UCC21521. But I cannot find detailed timing specifications. The only statement in 8.4.1 of the datasheet is: The EN pin is quite responsive, as far as
propagation delay and other switching parameters are concerned.

Is iot possible to give a more precise specification of the Enable response time?

Thanks and best regards,

Gerhard

over 6 years ago

0 Mateo Begue over 6 years ago

TI__Intellectual 2805 points

Hello Gerhard,

Welcome to the E2E community! I can help you with your question.

Can you tell us what voltage level you are planning on supplying to VCCI?

Regards,
Mateo

0 Gerhard2488 over 6 years ago in reply to Mateo Begue

Prodigy 30 points

Hi Mateo,

VCCI will be connected to 3.3V.

Best regards,

Gerhard

0 Mateo Begue over 6 years ago in reply to Gerhard2488

TI__Intellectual 2805 points

Hi Gerhard,

Bench results show enable response time when VCCI = 3.3-V:
t_enable_rise_delay: 30-ns
t_enable_fall_delay: 20-ns

regards,
Mateo

0 Gerhard2488 over 6 years ago in reply to Mateo Begue

Prodigy 30 points

OK. Thanks!

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UCC21521: Enable pin response time