TLK105 Datasheet, PDF (76/99 Pages) Texas Instruments – Industrial Temp, Single Port 10/100Mbs Ethernet Physical Layer Transceiver

TLK105
TLK106
SLLSEB8A – AUGUST 2012 – REVISED MARCH 2013
www.ti.com
9.5 POWER SUPPLY CHARACTERISTICS
The data was measured using a TLK10x evaluation board. The current from each of the power supplies is
measured and the power dissipation is computed. For the single 3.3V external supply case the power dissipation
across the internal linear regulator is also included. All the power dissipation numbers are measured at the
nominal power supply and typical temperature of 25°C. The power needed is given both for the device only, and
including the center tap of the transformer for a total system power requirement. The center tap of the
transformer is normally connected to the 3.3V supply, thus the current needed may also be easily calculated.
9.5.1 Active Power
PARAMETER
100Base-TX /W Traffic (full packet 1518B
rate)
10Base-T /W Traffic (full packet 1518B rate)
TEST CONDITIONS
Single 3.3V external supply
Single 3.3V external supply
FROM POWER PINS
203
96
FROM
TRANSFORMER
CENTER TAP
73
211
UNIT
mW
mW
9.5.2 Power-Down Power
PARAMETER
TEST CONDITIONS⁽¹⁾
IEEE PWDN
Single 3.3V external supply
Passive Sleep Mode
Single 3.3V external supply
Active Sleep Mode
Single 3.3V external supply
(1) Measured under typical conditions.
FROM THE POWER SUPPLIES
12
71
71
FROM TRANSFORMER
CENTER TAP
5
5
5
UNIT
mW
mW
mW
76
Electrical Specifications
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: TLK105 TLK106