Datasheet

USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
SMSC LAN9512/LAN9512i 19 Revision 1.2 (02-29-12)
DATASHEET
Many customers use a single poly fuse to power all their devices. For the ganged situation, all power
control pins must be tied together.
Figure 2.5 Port Power with Ganged Control with Poly Fuse
USB
Device
Poly Fuse
5V
USB
Device
PRTCTL2
LAN9512/
LAN9512i
PRTCTL3