SMSC LAN9420 - Manual (Page 158)

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
Revision 1.22 (09-25-08) 158 SMSC LAN9420/LAN9420i
DATASHEET
5.3.4 D3 - PHY in General Power Down Mode
5.3.5 Maximum Power Consumption
Note 5.5 Over the conditions specified in Section 5.2, "Operating Conditions**" .
Note: Power dissipation is determined by temperature, supply voltage, as well as external source/sink
current requirements.
Table 5.4 D3 - PHY in General Power Down Mode - Supply and Current (Typical)
PARAMETER
TYPICAL
(@ 3.3V)
UNIT
100BASE-TX Full Duplex
Supply current (VDD33IO, VDD33BIAS, VDD33A) 6 mA
Power Dissipation (Device Only) 19 mW
Power Dissipation (Device and Ethernet components) 19 mW
Ambient Operating Temperature in Still Air (T
A
) 25
o
C
10BASE-T Full Duplex
Supply current (VDD33IO, VDD33BIAS, VDD33A) 6 mA
Power Dissipation (Device Only) 19 mW
Power Dissipation (Device and Ethernet components) 19 mW
Ambient Operating Temperature in Still Air (T
A
) 25
o
C
Table 5.5 Maximum Power Consumption - Supply and Current (Maximum)
PARAMETER
MAXIMUM
(@ 3.6V)
UNIT
100BASE-TX Full Duplex
Supply current (VDD33IO, VDD33BIAS, VDD33A) 145 mA
Power Dissipation (Device Only) 530 mW
Power Dissipation (Device and Ethernet components) 690 mW
Ambient Operating Temperature in Still Air (T
A
) Note 5.5
o
C
10BASE-T Full Duplex
Supply current (VDD33IO, VDD33BIAS, VDD33A) 85 mA
Power Dissipation (Device Only) 310 mW
Power Dissipation (Device and Ethernet components) 700 mW
Ambient Operating Temperature in Still Air (T
A
) Note 5.5
o
C