參數(shù)資料
型號: EL2386CS-T13
廠商: ELANTEC
元件分類: 音頻/視頻放大
英文描述: 250MHz Triple Current Feedback Amplifier with Disable
中文描述: 3 CHANNEL, VIDEO AMPLIFIER, PDSO14
封裝: SO-14
文件頁數(shù): 4/16頁
文件大?。?/td> 337K
代理商: EL2386CS-T13
EL2386C
250 MHz Triple Current Feedback Amp wDisable
Applications Information
Contd
2386-40
Figure 2
VOUT Switching is complete in about 100 ns
Notice the outputs are tied directly together De-
coupling resistors at each output are not required
or advised when multiplexing
Power Dissipation
With the high output drive capability of the
EL2386C it is possible to exceed the 150 C Abso-
lute Maximum junction temperature under cer-
tain very high load current conditions Generally
speaking when RL falls below about 25X itis
important to calculate the maximum junction
temperature (TJmax) for the application to deter-
mine if power-supply voltages load conditions
or package type need to be modified for the
EL2386C to remain in the safe operating area
These parameters are calculated as follows
TJMAX e TMAX a (iJA n PDMAX)
1
where
TMAX e Maximum Ambient Temperature
iJA e Thermal Resistance of the Package
n e Number of Amplifiers in the Package
PDMAX e Maximum Power Dissipation of
Each Amplifier in the Package
PDMAX for each amplifier can be calculated as
follows
PDMAX e (2
VS
ISMAX) a
(VS–VOUTMAX) (VOUTMAX RL)
2
where
VS e Supply Voltage
ISMAX e Maximum Supply Current of 1
Amplifier
VOUTMAX e Max Output Voltage of the
Application
RL e Load Resistance
12
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