el5106iwz Intersil Corporation, el5106iwz Datasheet - Page 9

• Manufacturer Part Number: el5106iwz
• Description: 350mhz Fixed Gain Amplifiers With Enable
• Manufacturer: Intersil Corporation

Current Limiting
The EL5106 and EL5306 have no internal current-limiting
circuitry. If the output is shorted, it is possible to exceed the
Absolute Maximum Rating for output current or power
dissipation, potentially resulting in the destruction of the
device.
Power Dissipation
With the high output drive capability of the EL5106 and
EL5306, it is possible to exceed the +125°C Absolute
Maximum junction temperature under certain very high load
current conditions. Generally speaking when R
about 25Ω, it is important to calculate the maximum junction
temperature (T
power supply voltages, load conditions, or package type
need to be modified for the EL5106 and EL5306 to remain in
the safe operating area. These parameters are calculated as
follows:
where:
PD
where:
T
PD
JMAX
T
θ
n = Number of amplifiers in the package
PD
the package
V
I
V
R
SMAX
MAX
MAX
JA
MAX
S
OUTMAX
L
MAX
= Load resistance
= Supply voltage
= Thermal resistance of the package
=
for each amplifier can be calculated as follows:
=
= Maximum ambient temperature
= Maximum bias supply current
T
= Maximum power dissipation of each amplifier in
2 (
MAX
×
= Maximum output voltage (required)
V
JMAX
+
S
(
×
θ
JA
I
SMAX
) for the application to determine if
×
n
×
)
PD
+
(
MAX
9
V
S
- V
)
OUTMAX
)
×
L
V
--------------------------- -
falls below
OUTMAX
R
L
EL5106, EL5306
May 3, 2007
FN7357.5