USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
4.3
Power Consumption
This section details the power consumption of the device as measured during various modes of
operation. Power dissipation is determined by temperature, supply voltage, and external source/sink
requirements.
4.3.1
Operational Current Consumption & Power Dissipation
Table 4.1 Operational Current Consumption & Power Dissipation (VDD33IO = VDD33A = 3.3V)
PARAMETER
MIN
TYPICAL
MAX
UNIT
100BASE-TX Full Duplex (USB High-Speed)
Supply current (VDD33IO, VDD33A)
Power Dissipation (Device Only)
231
763
mA
mW
10BASE-T Full Duplex (USB High-Speed)
Supply current (VDD33IO, VDD33A)
Power Dissipation (Device Only)
188
621
mA
mW
10BASE-T Full Duplex (USB Full-Speed)
Supply current (VDD33IO, VDD33A)
Power Dissipation (Device Only)
152
502
mA
mW
Note: All values measured with maximum simultaneous traffic on the Ethernet port and all USB ports.
Note: Magnetic power consumption:
100BASE-TX: ~42mA
10BASE-T: ~104mA
SMSC LAN9512/LAN9512i
Revision 1.0 (11-24-09)
DATA3S9HEET
SMSC [ SMSC CORPORATION ]
