CD4050B: Absolute max for output current

Oba

Part Number: CD4050B

Hello,

My customer wants to put 470pF on output pins of CD4050B.
Then according to the below FAQ, it is better to put a series resistor to limit the output current to the absolute max.

https://e2e.ti.com/support/logic/f/151/t/722261

But CD4050B datasheet doesn't specify absolute max for the output current.
Could you tell me the absolute max for output current?

Regards,
Oba

over 6 years ago

0 Clemens Ladisch over 6 years ago

Guru 324730 points

See this similar question: CD4077B: How maximum current is IOL and IOH?

0 Chad Crosby over 6 years ago

TI__Expert 6680 points

Hi Oba,

What is the operating voltage the customer will be using? Clemens provided a post that states that the overall maximum power output of these devices above, which effectively states Iout max at a given voltage.

In order to not exceed this Iout max spec, you'll need to place a resistor in series with the output of the device, with a value ~= (VDD ^ 2) / (maximum power output)

Thanks!

Chad Crosby

Logic

Logic forum

CD4050B: Absolute max for output current