BQ27541: BQ27541 minimum delay after block write command

Th. Mathis

Part Number: BQ27541
Other Parts Discussed in Thread: BQ27542-G1, ,

What is the minimum required delay after a block write command in sealed mode?

Chapter "I2C Command Waiting Time" requires a 100 ms wait time after the checksum command but this seems to be OK for BQ27542-G1 but not for BQ27541-V200.

over 5 years ago

0 Andy Liu (BMS) over 5 years ago

TI__Guru 52115 points

I don't see a specific number in the BQ27541 now. Let me check if we have this data available.

Andy

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

TI__Mastermind 24870 points

Hello Th. Mathis,

We don't have a minimum wait time for this.

What I have done in the past is to add a re-try. The gauge will typically NACK during a clock stretch after writing the checksum as the flash is being re-written.

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Power management forum

BQ27541: BQ27541 minimum delay after block write command