LAN8710A Datasheet, PDF (67/82 Pages) SMSC Corporation – Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR Technology

Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR^® Technology
Datasheet
5.2
Operating Conditions**
Supply Voltage (VDDIO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1.62V to +3.6V
Analog Port Supply Voltage (VDD1A, VDD2A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.0V to +3.6V
Digital Core Supply Voltage (VDDCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1.14V to +1.26V
Ethernet Magnetics Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.25V to +3.6V
Ambient Operating Temperature in Still Air (T_A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Note 5.4
**Proper operation of the device is guaranteed only within the ranges specified in this section. After
the device has completed power-up, VDDIO and the magnetics power supply must maintain their
voltage level with +/-10%. Varying the voltage greater than +/-10% after the device has completed
power-up can cause errors in device operation.
Note: Do not drive input signals without power supplied to the device.
5.3
Power Consumption
This section details the device power measurements taken over various operating conditions. Unless
otherwise noted, all measurements were taken with power supplies at nominal values (VDDIO, VDD1A,
VDD2A = 3.3V, VDDCR = 1.2V). See Section 3.8.3, "Power-Down Modes," on page 40 for a
description of the power down modes.
Table 5.1 Device Only Current Consumption and Power Dissipation
POWER PIN GROUP
100BASE-TX /W TRAFFIC
Max
Typical
Min
VDDA3.3
POWER
PINS(mA)
28
26
23
VDDCR
POWER
PIN(mA)
21
18
18
Max
10.2
12.9
10BASE-T /W TRAFFIC
Typical
9.4
11.4
Min
9.2
10.9
ENERGY DETECT
POWER DOWN
Max
4.5
3
Typical
4.3
1.4
Min
3.9
1.3
Max
0.4
2.6
GENERAL POWER DOWN
Typical
0.3
1.2
Min
0.3
1.1
VDDIO
POWER
PIN(mA)
5.2
4.3
2.4
0.98
0.4
0.3
0.3
0.2
0
0.3
0.2
0
TOTAL
CURRENT
(mA)
54
48
43
24.1
21.2
20.4
7.8
5.9
5.2
3.3
1.7
1.4
TOTAL
POWER
(mW)
176
158
101
Note 5.6
79.5
70
44
Note 5.6
25
19.5
15.9
Note 5.6
10.9
5.6
2.4
Note 5.6
Note: The current at VDDCR is either supplied by the internal regulator from current entering at
VDD2A, or from an external 1.2V supply when the internal regulator is disabled.
SMSC LAN8710A/LAN8710Ai
67
DATASHEET
Revision 1.4 (08-23-12)