LAN8808D datasheet(56/80 Pages) MICROCHIP

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LAN8808D

DS00005833C-page 56

6.3

Power Consumption

This section details the power consumption of the device as measured during various modes of operation at typical

operating voltages. Power dissipation is impacted by temperature, supply voltage, and external source/sink require-

ments. All typical measurements were taken at +25°C unless otherwise noted.

Power consumption data is split into the following tables:

• Typical Four Port (1.21V, 3.3V, 3.3V) Power Consumption

• Typical Four Port (1.21V, 2.5V, 2.5V) Power Consumption

• Typical Four Port (1.21V, 2.5V, 1.8V) Power Consumption

Note 6-3

1.15V/1.27V Total includes: VDDCORE, VDDAL_COMMON, VDDAL_TXL_SERDES, VDDAL_CK125

Note 6-4

2.5V/2.625 VDDAH Total includes: VDDAH_SERDES, VDDAH_PLL_PTP, VDDAH_COMMON, VDDAH_Px.

Note 6-5

VDDIO Total includes: VDDIO, VDDIO_1

TABLE 6-1:

TYPICAL FOUR PORT (1.21V, 3.3V, 3.3V) POWER CONSUMPTION

Device Conditions

1.21V

Total (mA)

(Note 6-3)

3.3V VDDAH

Total (mA)

(Note 6-4)

3.3V VDDIO

Total (mA)

(Note 6-5)

Total

Device

Power

(mW)

4 ports + QSGMII, 1000BASE-T Master link-up,

no traffic

758

362

8.6

2138

4 ports + QSGMII, 1000BASE-T Slave link-up,

no traffic

756

362

8.6

2137

4 ports + QSGMII, 100BASE-TX link-up,

no traffic

257

179

940

4 ports + QSGMII, 10BASE-T link-up,

no traffic

112

125

19.4

610

4 ports + QSGMII, 10BASE-Te link-up,

no traffic

111

125

19.4

610

4 ports + QSGMII, 1000BASE-T Master full-duplex,

100% utilization

781

361

9.3

2165

4 ports + QSGMII, 1000BASE-T Slave full-duplex,

100% utilization

783

361

9.3

2167

4 ports + QSGMII, 100BASE-TX full-duplex,

100% utilization

257

179

11.9

940

4 ports + QSGMII, 10BASE-T full-duplex,

100% utilization

112

185

19.3

807

4 ports + QSGMII, 10BASE-Te full-duplex,

100% utilization

111

200

19.3

857

4 ports + QSGMII, 1000BASE-T Master,

EEE Sleep state

222

240

8.4

1086

4 ports + QSGMII, 1000BASE-T Slave,

EEE Sleep state

222

240

8.4

1087

4 ports + QSGMII, 100BASE-TX,

EEE Sleep state

143

138

11.9

668

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