ULN2803A - Iout max /CH and total

Hirotaka Matsumoto

Hi all

Would you mind if we ask ULN2803A?

<Question>
Our customert would like to know Iout(max)/CH, and Iout(max) total.
Our recognition is the following;

Iout max /CH : 500mA
Iout max total : 2500mA

Is it correct?

Kind regards,

Hirotaka Matsumoto

over 8 years ago

0 Michael J Schultis over 8 years ago

TI__Mastermind 24485 points

Hello Matsumoto-san,

The absolute maximum ratings are as you stated, however, it is not recommended to run at or near that limit for extended periods of time.

Please refer to the thermal information in the datasheet, because thermal dissipation is on of the most important limiting factors in using this device at such high currents. The device has the capability to reach the limits you mentioned, but will heat up beyond the 125C if not heatsinked properly.

Best,
Michael

0 Hirotaka Matsumoto over 8 years ago in reply to Michael J Schultis

Guru 27525 points

Michael san

Thank you for your prompt reply!

OK, we got it.

Kind regards,

Hirotaka Matsumoto

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ULN2803A - Iout max /CH and total