參數(shù)資料
型號(hào): EL5410CSZ-T7
廠商: INTERSIL CORP
元件分類: 音頻/視頻放大
英文描述: 30MHz Rail-to-Rail Input-Output Op Amps
中文描述: 1 CHANNEL, VIDEO AMPLIFIER, PDSO14
封裝: ROHS COMPLIANT, SOIC-8
文件頁數(shù): 4/14頁
文件大小: 329K
代理商: EL5410CSZ-T7
12
EL5210C/EL5410C
30MHz Rail-to-Rail Input-Output Op Amps
E
L
5210C/E
L5410C
stage of the device begin to conduct and overvoltage
damage could occur.
Figure 2. Operation with Beyond-the-Rails
Input
Power Dissipation
With the high-output drive capability of the EL5210C
and EL5410C amplifiers, it is possible to exceed the
125°C 'absolute-maximum junction temperature' under
certain load current conditions. Therefore, it is important
to calculate the maximum junction temperature for the
application to determine if load conditions need to be
modified for the amplifier to remain in the safe operating
area.
The maximum power dissipation allowed in a package is
determined according to:
Where:
TJMAX = Maximum Junction Temperature
TAMAX= Maximum Ambient Temperature
ΘJA = Thermal Resistance of the Package
PDMAX = Maximum Power Dissipation in the
Package.
The maximum power dissipation actually produced by
an IC is the total quiescent supply current times the total
power supply voltage, plus the power in the IC due to the
loads, or:
when sourcing, and
when sinking.
Where:
i = 1 to 2 for Dual and 1 to 4 for Quad
VS = Total Supply Voltage
ISMAX = Maximum Supply Current Per Amplifier
VOUTi = Maximum Output Voltage of the
Application
ILOADi = Load current
If we set the two PDMAX equations equal to each other,
we can solve for RLOADi to avoid device overheat. Fig-
ure 3 and Figure 4 provide a convenient way to see if the
device will overheat. The maximum safe power dissipa-
tion can be found graphically, based on the package type
and the ambient temperature. By using the previous
equation, it is a simple matter to see if PDMAX exceeds
the device's power derating curves. To ensure proper
operation, it is important to observe the recommended
derating curves shown in Figure 3 and Figure 4.
VS=±2.5V
TA=25°C
AV=1
VIN=6VP-P
1V
10 S
P
DMAX
T
JM AX
T
AMAX
Θ
JA
---------------------------------------------
=
P
DMAX
ΣiV
[
S
I
SMA X
V
(
S+VOU T i )
I
LOADi
×
+
×]
=
P
DMAX
ΣiV
[
S
I
SM AX
V
(
OU T iVS - )
I
LOAD i
×
+
×]
=
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