TCA9617B: How to treat EN pin

Michiaki Tanii

Expert 4640 points

Part Number: TCA9617B

Hello team,

Are there any problem if EN pin is tied to VCC directly ?

Could you kindly advise the meaning of IOL>IO in 9.2.1 standard application ?

IOL should be the low output current from TCA9617B but we are not sure what IO is.

Thank you and best regards,

Michiaki

over 4 years ago

0 Clemens Ladisch over 4 years ago

Guru 317480 points

EN can be connected directly to V_CC. (It also has an internal pull-up resistor.)

I_OL is the output current that the TCA can provide. I_O can be inferred to be the output current that the circuit actually needs, and is determined by the pull-up resistors (see section 9.2.1.2.1).

0 Eric Hackett over 4 years ago in reply to Clemens Ladisch

TI__Guru 74322 points

Michiaki,

Please let us know if you have any other questions.

Regards,

Interface

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TCA9617B: How to treat EN pin