SMSC LAN9514 - Manual (Page 40)

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.
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