SMSC LAN9514 Manual Do Utilizador
USB Hub with Integrated 10/100 Ethernet Controller
Datasheet
Revision 1.0 (04-20-09)
40
SMSC LAN9514
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.
operation. Power dissipation is determined by temperature, supply voltage, and external source/sink
requirements.
4.3.1
Operational Current Consumption & Power Dissipation
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
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)
288
mA
Power Dissipation (Device Only)
951
mW
10BASE-T Full Duplex (USB High-Speed)
Supply current (VDD33IO, VDD33A)
243
mA
Power Dissipation (Device Only)
802
mW
10BASE-T Full Duplex (USB Full-Speed)
Supply current (VDD33IO, VDD33A)
180
mA
Power Dissipation (Device Only)
594
mW