lan9221 Standard Microsystems Corp., lan9221 Datasheet - Page 142

• Manufacturer Part Number: lan9221
• Description: High-performance 16-bit Non-pci 10/100 Ethernet Controller With Variable Voltage I/o
• Manufacturer: Standard Microsystems Corp.

Revision 2.6 (12-04-08)
7.5
Variable Voltage Supply Current
+3.3V Regulator Supply Current
+3.3V Analog Supply Current
Variable Voltage Supply Current
+3.3V Regulator Supply Current
+3.3V Analog Supply Current
Variable Voltage Supply Current
+3.3V Regulator Supply Current
+3.3V Analog Supply Current
PARAMETER
PARAMETER
PARAMETER
This section details the worst case current consumption for each device power supply. These values
are provided to assist system designers with proper power supply design. These values cannot be
used to determine typical power consumption of the device. The maximum supply current for each
power supply is provided for the maximum VDDVARIO voltage in all supported ranges as detailed in
Table
Note: The current measurements listed below were taken under the following conditions:
Temperature: ................................................................................................................................
Device VDD (VDDVARIO, VDD33REG, VDD33A): ....................................................................
Note: Current consumption is determined by operating frequency, temperature, and supply voltage,
Note 7.6
Note 7.7
Note: Above values do not include the supply current for the magnetics. Based on the recommended
Worst Case Current Consumption
Table 7.3 Maximum Supply Current Characteristics VDDVARIO=3.3V + 300mV
Table 7.4 Maximum Supply Current Characteristics VDDVARIO=2.5V + 10%
Table 7.5 Maximum Supply Current Characteristics VDDVARIO=1.8V + 10%
7.3,
as well as external source/sink requirements.
implementation, the maximum supply current needed for the magnetics is 108mA.
Table
0
The device VDD voltage levels are indicated in the supply current tables below.
o
C to +70
7.4, and
o
C for commercial version, -40
Table
SUPPLY NAME
SUPPLY NAME
SUPPLY NAME
VDD33REG
VDD33REG
VDD33REG
VDDVARIO
VDDVARIO
VDDVARIO
VDD33A
VDD33A
VDD33A
7.5.
DATASHEET
142
High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
SUPPLY VOLTAGE
SUPPLY VOLTAGE
SUPPLY VOLTAGE
2.75V
1.98V
o
3.6V
3.6V
3.6V
3.6V
3.6V
3.6V
3.6V
C to +85
o
C for industrial version.
MAX CURRENT
MAX CURRENT
MAX CURRENT
12
85
48
85
48
85
48
9
7
SMSC LAN9221/LAN9221i
UNITS
UNITS
UNITS
Datasheet
mA
mA
mA
mA
mA
mA
mA
mA
mA
Note 7.6
Note 7.7