TPS65217: na

Cindy Lim

Part Number: TPS65217

Can I use the function of charging the external battery and using the external battery to power up other circuitry when not in charging mode.

over 3 years ago

0 Brenda Diaz over 3 years ago

TI__Mastermind 20796 points

Hi Cindy,

Thanks for reaching out. As stated in the datasheet, the input power source for charging the battery and running the system can be either an AC adapter or a USB port. The system (VSYS pin) can be powered by AC, USB or Battery but the power path will prioritize AC input over the USB input, and both over the battery input. The battery will be used to supply the system only when AC and USB are not present. This feature makes sure the AC and USB supplies are used whenever possible to save battery life.

Please refer to section "Battery Charger and Power Path" in the datasheet for more information and let me know if you have additional questions.

Thanks,

Brenda

0 Cindy Lim over 3 years ago in reply to Brenda Diaz

Prodigy 90 points

do you have an schematic sample on how I should connect?

0 Cindy Lim over 3 years ago in reply to Cindy Lim

Prodigy 90 points

thanks for the fast response, can I also check that when there is no AC and USB i understand that battery will take over.

while powering up my device using the battery can i choice on which regulator to power up to minimise current drawn from battery?

0 Brenda Diaz over 3 years ago in reply to Cindy Lim

TI__Mastermind 20796 points

Hi Cindy,

The figure below shows the recommended connections for the power path. This information can be found in the Brownout report.

Here I'm listing some links with more information in addition to the datasheet which can be used as a reference when designing with TPS65217.

Brownout report: Designing Robust TPS65217 Systems for VIN Brownout
EVMs: TPS65217CEVM / TPS65217DEVM
Programming BoosterPack: BOOSTXL-TPS652170 (if none of the pre-programmed part numbers for TPS65217 meet your power requirements, then you can use the BoosterPack to program a custom EEPROM configuration to be used for prototype. For production, you can work with a TI approved distributor (like Arrow) for programming services.
Schematic Checklist: TPS65217x Schematic Checklist (Rev. C)
If you are using TPS65217 PMIC to power AM335x processor, then we also have additional documentation showing how to make the connections between the PMIC and processor (Powering the AM335x with the TPS65217x . (Rev. I) / BEAGL-BONE-BLACK by BeagleBoard.org Foundation)

The datasheet and additional documentation can be found under "Technical documentation" in the product folder at ti.com.

Thanks,

Brenda

Power management

Power management forum

TPS65217: na