LAN9514 datasheet(40/49 Pages) SMSC

40 / 49 page

USB 2.0 Hub and 10/100 Ethernet Controller

Datasheet

Revision 1.0 (11-24-09)

SMSC LAN9514/LAN9514i

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

Power Dissipation (Device Only)

951

10BASE-T Full Duplex (USB High-Speed)

Supply current (VDD33IO, VDD33A)

243

Power Dissipation (Device Only)

802

10BASE-T Full Duplex (USB Full-Speed)

Supply current (VDD33IO, VDD33A)

180

Power Dissipation (Device Only)

594

LAN9514 Datasheet(PDF) 40 Page - SMSC Corporation