BQ20Z40: 470 Ohm Resistor

TI-CSC

Genius 12865 points

Part Number: BQ20Z40

Tool/software:

Hello E2E Experts,

Good day.

Is there a technical reason why a 470 Ohm resistor was used?

Data Flash Programming Using the EV Software (Rev. A (ti.com)

Regards,

TI-CSC

over 1 year ago

0 Adrian over 1 year ago

TI__Mastermind 37761 points

Hello,

Yes, the resistance should be high enough so the current is within spec for the device.

Regards,

Nick Richards

0 TI-CSC over 1 year ago in reply to Adrian

TI__Genius 12865 points

Hello Nick,

Good day.

How to calculate the charging current for the lithium battery pack if the pack capacity is 6450 and nominal voltage is 14.4 and the charging voltage is 16.8?

Regards,

TI-CSC

0 Adrian over 1 year ago in reply to TI-CSC

TI__Mastermind 37761 points

Hello,

For charging we recommend checking the data sheet of the battery you are using to make sure you are not charging over the recommended charging current limit. We recommend that you charge using a rate of C/2. So the charging current for your battery would be 3225 mA.

Regards,

Nick Richards

Power management

Power management forum

BQ20Z40: 470 Ohm Resistor