LM3643: LM3643

Fred Cheng

Part Number: LM3643

Hi team,

1. if the TX is high forever, do this mean we can't enter flash mode right?

2. what would happen if TORCH/TEMP and STROBE both high, what will IC react base on if I2C enable register is torch mode ?

thanks

over 3 years ago

0 Mason Wang over 3 years ago

TI__Genius 9630 points

hi Fred

1. yes, when TX is high, it will be forced into torch mode.

2. do you mean in the following register, Bit5 is 0, Bit 4 is 1, Bit 3 is 10?

0 Fred Cheng over 3 years ago in reply to Mason Wang

TI__Expert 5970 points

HI Mason,

1. can they connect HWEN STROBE and TORCH/TEMP pin together and pull high? since they can't place via under the package in this kind of PCB, so they need give HWEN a trace out of package.

2. I mean TORCH/TEMP and STROBE "pin" are both high if bit5=1, bit4=1, bit3=10,

will it listen to hardware pin or I2C register?

0 Mason Wang over 3 years ago in reply to Fred Cheng

TI__Genius 9630 points

hi Mason,

any update?

0 Mason Wang over 3 years ago in reply to Mason Wang

TI__Genius 9630 points

this has been resolved by mail.

Power management

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LM3643: LM3643