Using logic level shifter TXB0104 or other variants

Ronak Vashi

Other Parts Discussed in Thread: TXB0104, PCA9306

Hello,

I have Pandaboard ES and GPIO HIGH level for this board is 1.8v. Looked at this TI forum link and found that TXB0104 or SN74LVC8T24 could serve the purpose. My o/p voltage requirement is same but driving peripheral is different. It is TLP250 which need 5v input.

Specifically, there will be 4 GPIOs of Pandaboard will be used to generate 4 PWMs o/p (duty cycle / frequency not yet known) that will be feed to 4 TLP250. As mentioned eariled TLP250 need 5v as high i/p so I require voltage level shifter in between Pandaboard and TLP250.

So, questions are:

Will single TXB0104 be able to drive 4 TLPs?
If TXB0104 can't then any other better alternatives?
If someone could tell about connections for TXB0104 it would be of great help.

over 11 years ago

0 Ronak Vashi over 11 years ago

Prodigy 40 points

Sorry for broken link..Complete link is: http://e2e.ti.com/support/logic/f/151/t/224603.aspx

0 Chris Cockrill over 11 years ago in reply to Ronak Vashi

TI__Mastermind 46480 points

I will move this post to the translation forum

0 Ronak Vashi over 11 years ago in reply to Chris Cockrill

Prodigy 40 points

Thanks for moving to correct forum.

0 Wei Lang over 11 years ago in reply to Ronak Vashi

TI__Expert 6430 points

Hi,

For TLP250, input current will be up to 5mA, TXB0104 can not provide 5mA DC current. Could you please try 2 pcs PCA9306?

Thanks

0 Ronak Vashi over 11 years ago in reply to Wei Lang

Prodigy 40 points

Thank you for the reply. I am required to purchase PCA9306 and it will take 2-3 weeks for it to be delivered. So will be able to verify after that only.

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Using logic level shifter TXB0104 or other variants