Datasheet

USB 2.0 Hi-Speed Hub Controller
Datasheet
Revision 2.2 (02-17-12) 52 SMSC USB251xB/xBi
DATASHEET
Table 6.3 Supply Current Unconfigured: Full-Speed Host (I
CCINTFS
)
PART MIN TYP MAX UNITS COMMENTS
USB2512B/12Bi 35 40 mA
USB2513B/13Bi 35 40 mA
USB2514B/14Bi 35 40 mA
Table 6.4 Supply Current Configured: Hi-Speed Host (I
HCH1
)
PART MIN TYP MAX UNITS COMMENTS
USB2512B 60 65 mA
This is the base current
of one downstream
port.
USB2512Bi 60 70 mA
USB2513B 65 70 mA
USB2513Bi 65 75 mA
USB2514B 70 80 mA
USB2514Bi 70 85 mA
USB251xB/xBi
Supply Current Configured
Hi-Speed Host, each additional downstream
port
1 port
base
+
25 mA
1 port
base
+
25 mA
mA
Table 6.5 Supply Current Configured: Full-Speed Host (I
FCC1
)
PART MIN TYP MAX UNITS COMMENTS
USB2512B 45 50 mA
Base current of one
downstream port
USB2512Bi 45 55 mA
USB2513B 50 55 mA
USB2513Bi 50 60 mA
USB2514B 50 60 mA
USB2514Bi 50 65 mA
USB251xB/xBi
Supply Current Configured
Full-Speed Host, each additional
downstream port
1 port
base
+
8 mA
1 port
base
+
8 mA
mA