Why not use something like this before the TPS65217C: http://www.linear.com/product/LTC4415 <http://www.linear.com/product/LTC4415>
Regards, John > On Nov 23, 2015, at 11:19 AM, PSB <[email protected]> wrote: > > Hi, > > We are designing with the AM3352 and TPS65217C PMIC closely matching the BBB. > We have two power inputs (Primary and backup) coming from different PS. We > intend on connecting the primary to the AC input of the TPS65217 and connect > the backup to the USB input. We do not have a battery in our system and need > to the TPS to auto switch between the AC/USB sources when the AC input is > lost. > > TPS datasheet section 9.3.9.1 says that it is not recommended using this mode > if the battery is absent. I checked with TI who said that this mode, while > not recommended, has been widely used and is also on the BBB. TI suggested > posting my question on the BBB forum to see if anyone has had any issues or > Lockout conditions when using the BBB or their custom design in this mode. I > will appreciate if anyone can share their experience in applications similar > to mine? > > Thanks in advance. > > -- > For more options, visit http://beagleboard.org/discuss > <http://beagleboard.org/discuss> > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
