LAN9303 Datasheet, PDF (347/366 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
Datasheet
14.3 Power Consumption
This section details the device’s typical supply current for 10BASE-T, 100BASE-TX and power
management modes of operation.
Table 14.1 Supply and Current (10BASE-T Full-Duplex)
PARAMETER
Supply current @ 3.3V
(VDD33A1, VDD33A2, VDD33BIAS, VDD33IO)
Ambient Operating Temperature in Still Air (T_A)
TYPICAL
111
24
Note: The typical supply current value was measured with 100% network loading.
Each port's transformer uses an additional 104ma @ 3.3V
UNIT
mA
o_C
Table 14.2 Supply and Current (100BASE-TX Full-Duplex)
PARAMETER
Supply current @ 3.3V
(VDD33A1, VDD33A2, VDD33BIAS, VDD33IO)
Ambient Operating Temperature in Still Air (T_A)
TYPICAL
190
24
Note: The typical supply current value was measured with 100% network loading.
Each port's transformer uses an additional 42ma @ 3.3V
UNIT
mA
o_C
Table 14.3 Supply and Current (Power Management)
PARAMETER
Both internal PHYs in Energy Detect Power Down @ 3.3V
Both Internal PHYs in General Power Down @ 3.3V
Ambient Operating Temperature in Still Air (T_A)
TYPICAL
74
44
24
UNIT
mA
mA
o_C
Note: Power dissipation is determined by operating frequency, temperature, and supply voltage, as
well as external source/sink current requirements.
SMSC LAN9303/LAN9303i
347
DATASHEET
Revision 1.3 (08-27-09)