LAN8710AI datasheet(67/82 Pages) MICROCHIP

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Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR® Technology

Datasheet

SMSC LAN8710A/LAN8710Ai

Revision 1.4 (08-23-12)

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 (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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.

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.

Table 5.1 Device Only Current Consumption and Power Dissipation

POWER PIN GROUP

VDDA3.3

POWER

PINS(mA)

VDDCR

POWER

PIN(mA)

VDDIO

POWER

PIN(mA)

TOTAL

CURRENT

(mA)

TOTAL

POWER

(mW)

100BASE-TX /W TRAFFIC

Max

5.2

176

Typical

4.3

158

Min

2.4

101

Note 5.6

10BASE-T /W TRAFFIC

Max

10.2

12.9

0.98

24.1

79.5

Typical

9.4

11.4

0.4

21.2

Min

9.2

10.9

0.3

20.4

Note 5.6

ENERGY DETECT

POWER DOWN

Max

4.5

0.3

7.8

Typical

4.3

1.4

0.2

5.9

19.5

Min

3.9

1.3

5.2

15.9

Note 5.6

GENERAL POWER DOWN

Max

0.4

2.6

0.3

3.3

10.9

Typical

0.3

1.2

0.2

1.7

5.6

Min

0.3

1.1

1.4

2.4

Note 5.6

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