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LAN8740 Datasheet(PDF) 114 Page - Microchip Technology

Part # LAN8740
Description  Small Footprint MII/RMII 10/100 Energy Efficient Ethernet Transceiver with HP Auto-MDIX and flexPWR짰 Technology
PDF  136 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN8740 Datasheet(HTML) 114 Page - Microchip Technology

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LAN8740A/LAN8740Ai
DS00001987A-page 114
2013-2015 Microchip Technology Inc.
5.4
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 = 3.3 V, VDDCR = 1.2 V).
See Section 3.8.3, "Power-Down Modes" for a description of the power down modes.
5.4.1
REGULATOR DISABLED
5.4.2
REGULATOR ENABLED
TABLE 5-2:
CURRENT CONSUMPTION AND POWER DISSIPATION (REG. DISABLED)
Power Pin Group
3.3 V Device
Current (mA)
1.2 V Device
Current (mA)
3.3 V Device
Current w/
Magnetics
(mA)
Total Device
Power (mW)
nRESET
Typical
9.7
11
9.7
45
100BASE-TX /W TRAFFIC
(NO EEE)
Typical
32
21
74
130
10BASE-T /W TRAFFIC
Typical
11
13
114
51
100BASE-TX IDLE /W EEE
Typical
32
15
32
122
ENERGY DETECT
POWER DOWN
Typical
4.0
1.7
4.0
15
GENERAL POWER DOWN
Typical
0.3
1.4
0.4
2.8
TABLE 5-3:
CURRENT CONSUMPTION AND POWER DISSIPATION (REG. ENABLED)
Power Pin Group
Device Current (mA)
Device Current w/
Magnetics (mA)
Total Device Power
(mW)
nRESET
Typical
21
21
70
100BASE-TX /W TRAFFIC
(NO EEE)
Typical
55
97
180
10BASE-T /W TRAFFIC
Typical
25
129
82
100BASE-TX IDLE /W EEE
Typical
48
48
158
ENERGY DETECT
POWER DOWN
Typical
7.1
7.1
24
GENERAL POWER DOWN
Typical
4.0
4.0
13



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