EL9111ILZ-T7 Intersil, EL9111ILZ-T7 Datasheet - Page 12

• Manufacturer Part Number: EL9111ILZ-T7
• Description: IC DIFF RCVR/EQUALZR TRPL 28-QFN
• Manufacturer: Intersil
• Type: Receiverr

Specifications of EL9111ILZ-T7

• Number Of Drivers/receivers: 0/3
• Protocol: Twisted-Pair
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Package / Case: 28-VQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Power Dissipation
The EL9111 and EL9112 are designed to operate with ±5V
supply voltages. The supply currents are tested in
production and guaranteed to be less than 39mA per
channel. Operating at ±5V power supply, the total power
dissipation in Equation 1 is:
where:
• PD
• V
• I
• V
R
θ
calculated. This is done using the equation:
where:
T
T
For a QFN 20 Ld package in a properly layout PCB
heatsinking copper area, +37°C/W θ
can be achieved. To disperse the heat, the bottom
heatspreader must be soldered to the PCB. Heat flows
through the heatspreader to the circuit board copper then
spreads and converts to air. Thus the PCB copper plane
becomes the heatsink. This has proven to be a very effective
technique. "See Technical Bulletin 389
(http://www.intersil.com/data/tb/TB389.pdf) for additional
QFN PCB layout information."
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
PD
PD
θ
JA
A
J
L
JA
channel = 39mA
application = 2V
MAX
MAX
is the maximum junction temperature (+150°C)
is the maximum ambient temperature (+85°C)
= Load resistance = 150Ω
MAX
S
OUTMAX
required for long term reliable operation can be
=
MAX
= Supply voltage = 5V
T
-------------------
= Maximum quiescent supply current per
=
J
=
PD
–
3
= Maximum power dissipation
1.29W
T
×
A
= Maximum output voltage swing of the
=
2
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
×
+50.4°C/W
V
S
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
×
I
For information regarding Intersil Corporation and its products, see www.intersil.com
SMAX
12
+
(
V
S
- V
JA
OUTMAX
thermal resistance
)
×
V
--------------------------- -
OUTMAX
R
(EQ. 2)
(EQ. 3)
EL9111, EL9112
(EQ. 1)
L
May 9, 2007
FN7450.4