LAN8804SLASHZMXC1 datasheet(59/91 Pages) MICROCHIP

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LAN8804

DS00003591G-page 59

6.3

Power Consumption

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

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

ments. All minimum measurements were taken at +25C unless otherwise noted. All worst-case measurements were

taken at +5% power supply and +125C junction temperature.

Power consumption data is split into the following tables:

• Minimum Four Port Operation

- Minimum Four Port (1.16V, 3.3V, 3.3V) Power Consumption

- Minimum Four Port (1.16V, 2.5V, 2.5V) Power Consumption

- Minimum Four Port (1.16V, 2.5V, 1.8V) Power Consumption

• Worst-Case Four Port Operation

- Worst-Case Four Port (1.27V, 3.465V, 3.465V) Power Consumption

- Worst-Case Four Port (1.27V, 2.625V, 2.625V) Power Consumption

- Worst-Case Four Port (1.27V, 2.625V, 1.89V) Power Consumption

Note 6-3

1.1V Total includes: VDDCORE, VDDAL_PLL, VDDAL_SERDES, VDDTXL_SERDES, VDDAL_CK125

Note 6-4

VDDAH Total includes: VDDAH, VDDAH_SERDES, VDDAH_PLL_PTP, VDDAH_ABPVT, VDD33REF,

VDDAH_Px

Note 6-5

VDDIO Total includes: VDDIO, VDDIO_1

6.3.1

MINIMUM FOUR PORT OPERATION

All measurements were taken at +25C unless otherwise noted.

TABLE 6-1:

MINIMUM FOUR PORT (1.16V, 3.3V, 3.3V) POWER CONSUMPTION

Device Conditions

1.16V

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

737

520

8.3

2597

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

no traffic

738

520

8.4

2600

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

no traffic

251

267

11.8

1211

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

no traffic

111

239

19.1

979

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

no traffic

106

239

19.1

973

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

100% utilization

765

519

5.1

2616

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

100% utilization

765

519

4.9

2617

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

100% utilization

251

276

6.7

1222

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

100% utilization

106

268

10.6

1042

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