LAN9250 datasheet(403/421 Pages) MICROCHIP

403 / 421 page

 2015 Microchip Technology Inc.

DS00001913A-page 403

LAN9250

Note 12:

VDD33TXRX1, VDD33TXRX2, VDD33BIAS, VDD33, VDDIO

Note 13:

VDD12TX1 and VDD12TX2, are driven by the internal regulator via the PCB. The current is accounted for

via VDD33.

Note 14:

Current measurements do not include power applied to the magnetics or the optional external LEDs.

Note 15:

The Ethernet component current is independent of the supply rail voltage (2.5V or 3.3V) of the transformer.

Copper TP operation is assumed. Current is zero if using 100BASE-FX mode.

Note 16:

This includes the power dissipated by the transmitter by way of the current through the transformer.

Note 17:

3.3*(A) + (2.5)*(C) @ Typ

Note 18:

3.3*(A) + (3.3)*(C) @ Typ

D0, PHY General

Power Down

Typ.

48.4

0.0

160

D1, 100BASE-TX

Idle (w/o EEE)

Typ.

66.6

41.0

323

356

D1, 100BASE-TX

Idle (with EEE)

Typ.

59.2

0.0

196

D1, 10BASE-T

Idle

Typ.

38.5

101.0

380

461

D1, PHY Energy Detect

Power Down

Typ.

27.5

0.0

D1, PHY General

Power Down

Typ.

24.3

0.0

D2, 100BASE-TX

Idle (w/o EEE)

Typ.

66.4

41.0

322

355

D2, 100BASE-TX

Idle (with EEE)

Typ.

59.4

0.0

196

D2, 10BASE-T

Idle

Typ.

38.4

101.0

380

460

D2, PHY Energy Detect

Power Down

Typ.

16.2

0.0

D2, PHY General

Power Down

Typ.

13.3

0.0

D3, PHY General

Power Down

Typ.

9.4

0.0

TABLE 19-5:

CURRENT CONSUMPTION AND POWER DISSIPATION (REGS. ENABLED)

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