TLIN1021A-Q1: LEVEL TRANSLATION FOR LIN SIGNALS

SATHYA SHREE S

Part Number: TLIN1021A-Q1
Other Parts Discussed in Thread: TXU0304, TXU0202, TXU0101

Hi,

We are using TLIN1021A-Q1 transceiver in our design for LIN interface. Our processor has 1.8V, lin interface is of 5V. Please suggest a level translator for lin interface of(TXD,RXD) signals.

Thanks

S Sathya shree

over 1 year ago

0 Clemens Ladisch over 1 year ago

Guru 259910 points

For level shifting the two TXD/RXD signals, use the TXU0202. If you need more control signals, use a shifter with more channels like the TXU0304.

0 Eric Schott1 over 1 year ago in reply to Clemens Ladisch

TI__Guru 50115 points

Thanks Clemens!

Hi Sathya,

The RXD pin of TIN1021A is an open-drain output, so an external pull-up to 1.8V may be used to make this signal rail compatible with your MCU voltage. The TXD signal has a 2V high-level input threshold, so this signal will require external translation. If this you may use a similar 1-channel device to what Clemens suggested - TXU0101.

Let me know if you have any more questions.

Regards,
Eric Schott

Interface

Interface forum

TLIN1021A-Q1: LEVEL TRANSLATION FOR LIN SIGNALS