DS90UH948-Q1: Absolute Maximum Cuicuit Rating & Average rated current value

user6087902

Part Number: DS90UH948-Q1

Hello

I want you to tell that current values of following two of all pins of DS90UH948-Q1
・Absolutely maximum current rating level
・Mean current rating level

I would like it as things mentioned above.

over 6 years ago

0 Steven(Shenzhen) Shi over 6 years ago

TI__Mastermind 30515 points

Hello,

may I have you to check the electrical spec. listed in my.ti.com (http://www.ti.com/lit/ds/symlink/ds90uh948-q1.pdf) page12?

the typical rating current for VDD12 is ~169mA and VDD33 is ~168mA and the maximum current is ~220mA for both rails when PCLK is 170MHz. VDDIO has small power comsuption compared with VDD12/VDD33.

best regards,

Steven

0 user6087902 over 6 years ago in reply to Steven(Shenzhen) Shi

Prodigy 40 points

Hello

I'm sorry. I got a wrong question.

It is Absolute Maximum current rating & Average rated current value of each of next pins that I want to know.

・1pin、4pin、5pin、7pin、45pin、46pin、48pin

best regards

0 Steven(Shenzhen) Shi over 6 years ago in reply to user6087902

TI__Mastermind 30515 points

Hello,

sorry we don't have each pin power current spec.

pls see TI's d/s in page93/94, in our recommendation, all VDD33, VDD12 and VDDIO pins are connected together separately, so we have total current spec. in 3.3V, 1.2V and VDDIO respectively.

best rearsd,

Steven

0 user6087902 over 6 years ago in reply to Steven(Shenzhen) Shi

Prodigy 40 points

Hello,

If 20mA current would flow 1pin & 7pin of DS90UH948-Q1, Have this device broken?

Best regards.

0 Steven(Shenzhen) Shi over 6 years ago in reply to user6087902

TI__Mastermind 30515 points

Hi,

If this current just is existing for short time, it does not break the device. but it is not recommended that the 20ma current is flowing into UB948 continuously.

best regards,

Steven

0 user6087902 over 6 years ago in reply to Steven(Shenzhen) Shi

Prodigy 40 points

Hello

I appriciate you to answer my question.

・If this current just is existing for short time, it does not break the device.

→①How long time it doesn't break the device?

　②Does 10ns,25ma break the device?

best regards

0 Steven(Shenzhen) Shi over 6 years ago in reply to user6087902

TI__Mastermind 30515 points

Hi,

In our d/s, it is recommended to have no persistent over-spec. application. If it only has ~us level such as ESD etc., it doesn't impact the device reliability due to internal protection circuit. For your case, it only has ~10ns level and low current 25mA (<shorted current), it is safe enough.

best regards,

Steven

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DS90UH948-Q1: Absolute Maximum Cuicuit Rating & Average rated current value