BQ27220: How to do OTP programming in mass production

Gary Jiang

Part Number: BQ27220
Other Parts Discussed in Thread: EV2400

Hi team,

My customer is using BQ27220 and now is close to SOP. They want to know how to perform OTP programming in mass production. Does BQ27220 have specific MP downloading tools to use? What is the right process?

Thank you!

Gary

over 5 years ago

0 Andy Liu (BMS) over 5 years ago

TI__Guru 52115 points

See Appendix B of bq27220 TRM.

Andy

0 Gary Jiang over 5 years ago in reply to Andy Liu (BMS)

TI__Intellectual 980 points

Andy,

Thank you for your answer.

They have seen TRM appendix B, and all the content is about file generation. I do see from B.4 that BQ27220 should be assembled in the battery pack or on the EVM through I2C I/F using EV2300/EV2400.

What customer want to know is, do we have any specific clamp tools or programming tools, which can be used to program chip separately? From my side, I think using EVM to download is not easily used by customer. And customer may not reserve dedicated I2C I/F for downloading. Do we have another recommended solution to do the OTP programming?

Thank you.

0 Andy Liu (BMS) over 5 years ago in reply to Gary Jiang

TI__Guru 52115 points

The EV2300 or EV2400 is the tool I am aware of so far.

Andy

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BQ27220: How to do OTP programming in mass production