TPS23880: The I2C connection of multi-TPS23880

chentsu chung

Part Number: TPS23880
Other Parts Discussed in Thread: TIDA-00290, TPS23861, ISO1541

Hi,

If we want to use multi-TPS23880, then :

1. The MCU got only SDA and SCL, how to connect TPS23880 with SDAI/SDAO/SCL?

2. TIDA-00290 use 2 TPS23861 with 1 isolator for I2C connection. Could I refer to TIDA-00290 for TPS23880's I2C connection?

Thank you,

C.T.

over 6 years ago

0 Penny Xu over 6 years ago

TI__Genius 15685 points

Hi C.T,

Yes. You cam connect all TPS23880's SCLs together(same for SDAO and SDAI) and just use one digital isolator between PSE and MCU. You also can use bidirectional digital isolator (such as ISO1541) where you can simply connect SDAO and SDAI together on the PSE side. Please refer to TIDA01411 reference design where we used ISO1541. Thanks.

Best regards,
Penny

0 chentsu chung over 6 years ago in reply to Penny Xu

Mastermind 6180 points

Hi Penny,

Thank you very much!

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TPS23880: The I2C connection of multi-TPS23880