Min of VI ULN2003ADR

HORI KOJI

Intellectual 570 points

Other Parts Discussed in Thread: ULN2003A, ULN2003AI

Dear ALL

Our customer is using ULN2003ADR for BaseStation.

Could you please teach me the Min of VI(on) On-State input Voltage.

Condition is VCE=2.4V, IC=200mA.

Datasheet say Max is 2.4V.

Thanks

Best Regards

Koji Hori

over 11 years ago

0 Ron Michallick over 11 years ago

TI__Guru**** 170746 points

Koji-san,

Providing a input of 2.4V will ensure that the ULN2003A can drive a 200mA load at 25C. To cover temperature changes, the ULN2003AI's recommendation of 2.7V should be used instead.

A 5V CMOS logic signal will drive the inputs well above 2.7V. Many 3.3V logic signals can also drive the input above 2.7V.

It is no problem for the input voltage to exceed 2.7V. A input voltage that is too low may not drive the ULN2003A transistor enough to ensure a good low output voltage.

0 HORI KOJI over 11 years ago in reply to Ron Michallick

Intellectual 570 points

Dear Ronald-san

Thank you very much for your prompt reply.

Could you please teach me the minimum Voltage of VI(on) On-State input Voltage.

Condition is VCE=2.4V, IC=200mA.

My customer would like to know that what is the minimum Voltage may drive ULN2003A.

I'd really appreciated it if you could reply my question.

Thanks

Best Regards

Koji Hori

0 Ron Michallick over 11 years ago in reply to HORI KOJI

TI__Guru**** 170746 points

Koji-san,

I did answer that question. Please rephrase the question.
Are you asking how we test that parameter or how the parameter relates to an application's design

0 HORI KOJI over 11 years ago in reply to Ron Michallick

Intellectual 570 points

Dear Ron-san

I'm really sorry that my understand was wrong.

Thank you very much for your answer, your answer is support for customer requirement.

Thanks

Best Regards

Koji Hori

Interface

Interface forum

Min of VI ULN2003ADR