LAN9312 Datasheet, PDF (442/458 Pages) SMSC Corporation – High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

15.3
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
Power Consumption
This section details the power consumption of the LAN9312. Power consumption values are provided
for both the device-only, and for the device plus the Ethernet components on ports 1 and 2.
Table 15.1 Supply and Current (10BASE-T Full-Duplex)
PARAMETER
Supply current at 3.3V
(VDD33A1, VDD33A2, VDD33BIAS, VDD33IO)
Power Dissipation (Device Only)
Power Dissipation (Device and Ethernet components)
Ambient Operating Temperature in Still Air (T_A)
TYPICAL
(@ 3.3V)
165
550
1245
25
MAXIMUM
(@ 3.6V)
185
670
1435
Note 15.4
UNIT
mA
mW
mW
o_C
Table 15.2 Supply and Current (100BASE-TX Full-Duplex)
PARAMETER
Supply current
(VDD33A1, VDD33A2, VDD33BIAS, VDD33IO)
Power Dissipation (Device Only)
Power Dissipation (Device and Ethernet components)
Ambient Operating Temperature in Still Air (T_A)
TYPICAL
(@ 3.3V)
255
845
1130
25
MAXIMUM
(@ 3.6V)
295
1070
1385
Note 15.4
UNIT
mA
mW
mW
o_C
Note 15.4 Over the conditions specified in Section 15.2, "Operating Conditions**".
Note: Power dissipation is determined by operating frequency, temperature, and supply voltage, as
well as external source/sink current requirements.
Revision 1.2 (04-08-08)
442
DATASHEET
SMSC LAN9312