LAN8700 datasheet(59/74 Pages) MICROCHIP

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DS00002260A-page 59

LAN8700/LAN8700i

7.1.1.2.1

Air Discharge

To perform this test, a charged electrode is moved close to the system being tested until a spark is generated. This test

is difficult to reproduce because the discharge is influenced by such factors as humidity, the speed of approach of the

electrode, and construction of the test equipment.

7.1.1.2.2

Contact Discharge

The uncharged electrode first contacts the pin to prepare this test, and then the probe tip is energized. This yields more

repeatable results, and is the preferred test method. The independent test laboratories contracted by Microchip provide

test results for both types of discharge methods.

7.1.2

OPERATING CONDITIONS

7.1.3

POWER CONSUMPTION

7.1.3.1

Power Consumption Device Only

Power measurements taken over the operating conditions specified. See Section 5.4.5 for a description of the power

down modes.

Note 7-1

This is calculated with full flexPWR features activated: VDDIO = 1.8V and internal regulator disabled.

TABLE 7-3:

RECOMMENDED OPERATING CONDITIONS

Parameter

Conditions

MIN

TYP

MAX

Units

Comment

VDD33

VDD33 to VSS

3.0

3.3

3.6

Input Voltage on Digital

Pins

0.0

VDDIO

Voltage on Analog I/O

pins (RXP, RXN)

0.0

+3.6V

Ambient Temperature

TA LAN8700-AEZG

For Commercial

Temperature

TA LAN8700i-AEZG

-40

+85

For Industrial Temperature

TABLE 7-4:

POWER CONSUMPTION DEVICE ONLY

Power Pin Group

VDDA3.3

Power Pins

(mA)

VDD_CORE

Power Pin

(mA)

VDDIO

Power Pin

(mA)

Total

Current

(mA)

Total

Power

(mW)

100BASE-T /W TRAFFIC

Max

35.6

41.3

4.7

81.6

269.28

Typical

33.3

37.4

4.1

74.8

246.84

Min

31.3

33.4

1.3

165.75

Note 7-1

10BASE-T /W TRAFFIC

Max

15.6

22.3

1.1

128.7

Typical

15.3

20.8

0.9

122.1

Min

14.9

19.1

0.1

34.1

83.88

Note 7-1

ENERGY DETECT POWER

DOWN

Max

10.5

3.3

0.5

13.85

45.7

Typical

9.9

2.7

0.4

13.0

42.9

Min

9.8

2.3

0.3

12.4

37.02

Note 7-1

GENERAL POWER DOWN

Max

0.21

2.92

0.39

3.52

11.62

Typical

0.124

2.6

0.345

3.07

10.131

Min

0.038

2.1

0.3

2.44

4.4454

Note 7-1

Note:

The current at VDD_CORE is either supplied by the internal regulator from current entering at VDD33, or

from an external 1.8V supply when the internal regulator is disabled.

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