And if you go to 6V, it will blow up the power control switch for the USB host, rated at 5.5VDC maximum.
Gerald On Thu, Dec 5, 2013 at 8:27 PM, <[email protected]> wrote: > Just dug into this... My notes: > > BBB Power: > No onboard input voltage regulation! Input jack connects directly to > TPS65217C PM IC. > > From tps65217c.pdf: > ----- > Absolute Maximum Supply voltage range, USB, > AC: -0.3 to 20 V > RECOMMENDED OPERATING CONDITIONS - Supply voltage, USB, AC: 4.3 to 5.8 V > Maximum Input > current from AC: 2.5 A > VIN(OVP) Input over voltage detection threshold > USB, AC: 5.8 (typ)6 (max)6.4 V > provides a linear battery charger for single-cell Li-ion and Li-Polymer > batteries... > ----- > > The 5V rails VDD_5V and SYS_5V go to the LEDs, the expansion connector, > the DVI/HDMI connector, and the USB connectors. Unless you are using these > for something which needs regulated +5V, the wider 4.3 to 5.8 V limits will > keep the board itself happy. > > It will safely disconnect from an input that exceeds about 6V, and can > then handle up to 20V. But it is _not_ protected from reverse polarity! > > > >> -- > 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/groups/opt_out. > -- 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/groups/opt_out.
