TCA9800: I'm looking for bidirectional I2C level shifter for 1.8V/5V

Shinya Sawamoto

Expert 5305 points

Part Number: TCA9800
Other Parts Discussed in Thread: TCA9617A

Hello team,

I found TCA9800 as a good bidirectional I2C level shfter option for treating offset voltage sensitive 1.8V rail.

I'm looking for 1.8/5V I2C translating, but TCA9800 has 4V max limitation, unfortunately..

Do you have any good option of I2C level shifter with satisfying 5V rail? Also, smaller package size is preferred.

Thanks in advance.
Shinya Sawamoto

over 7 years ago

0 Miguel Robertson over 7 years ago

TI__Guru 62920 points

Hello Sawamoto-san,

The TCA9617A would be able to accommodate these voltages (1.8 V on side "A" and 5 V on side "B"). It comes in an 8-pin VSSOP package with 3 mm x 3 mm body size. Can you please take a look at this product and see if it meets your application needs? If not we can try to recommend an alternative.

Regards,
Max Robertson

0 Shinya Sawamoto over 7 years ago in reply to Miguel Robertson

TI__Expert 5305 points

Thanks Max-san,
I'll try to go with TCA9617A and may send you a email when needed further discussion.

Regards,
Shinya Sawamoto

Interface

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TCA9800: I'm looking for bidirectional I2C level shifter for 1.8V/5V