參數(shù)資料
型號(hào)： THS4011JG
廠商： Texas Instruments, Inc.
英文描述： 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
中文描述： 290 - MHz的低失真高速放大器
文件頁(yè)數(shù)： 22/30頁(yè)
文件大小： 439K
代理商： THS4011JG
THS4011, THS4012
290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
SLOS216B – JUNE 1999 – FEBRUARY 2000
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
general PowerPAD design considerations (continued)
The actual thermal performance achieved with the THS401xDGN in its PowerPAD package depends on the
application. In the example above, if the size of the internal ground plane is approximately 3 inches
×
3 inches,
then the expected thermal coefficient,
θ
JA
,
is
about 58.4 C/W. For comparison, the non-PowerPAD version of
the THS401x IC (SOIC) is shown. For a given
θ
JA
, the maximum power dissipation is shown in Figure 35 and
is calculated by the following formula:
PD
TMAX–TA
JA
Where:
P
D
T
MAX
= Absolute maximum junction temperature (150
°
C)
T
A
= Free-ambient air temperature (
°
C)
θ
JA
=
θ
JC
+
θ
CA
θ
JC
= Thermal coefficient from junction to case
θ
CA
= Thermal coefficient from case to ambient air (
°
C/W)
= Maximum power dissipation of THS401x IC (watts)
DGN Package
θ
JA = 58.4
°
C/W
2 oz. Trace And Copper Pad
With Solder
DGN Package
θ
JA = 158
°
C/W
2 oz. Trace And
Copper Pad
Without Solder
SOIC Package
High-K Test PCB
θ
JA = 98
°
C/W
TJ = 150
°
C
SOIC Package
Low-K Test PCB
θ
JA = 167
°
C/W
2
1.5
1
0
–40
–20
0
20
40
M
2.5
3
MAXIMUM POWER DISSIPATION
vs
FREE-AIR TEMPERATURE
3.5
60
80
100
0.5
TA – Free-Air Temperature –
°
C
NOTE A: Results are with no air flow and PCB size = 3”
×
3”
Figure 35. Maximum Power Dissipation vs Free-Air Temperature
More complete details of the PowerPAD installation process and thermal management techniques can be found
in the Texas Instruments Technical Brief, PowerPAD Thermally Enhanced Package.This document can be
found at the TI web site (www.ti.com) by searching on the key word PowerPAD. The document can also be
ordered through your local TI sales office. Refer to literature number SLMA002 when ordering.
相關(guān)PDF資料
PDF描述
THS4011DGN 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4011EVM 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4011FK 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4011MFK 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4012D 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS4011MFK 制造商:TI 制造商全稱:Texas Instruments 功能描述:290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4011MFKB 制造商:Texas Instruments 功能描述:290-MHZ LOW-DISTORTION VOLTAGE-FEEDBACK
THS4011MJG 制造商:Texas Instruments 功能描述:OP AMP SGL VOLT FDBK 16.5V/33V 8CDIP - Rail/Tube
THS4011MJGB 制造商:Texas Instruments 功能描述:OP Amp Single Volt Fdbk ±16.5V/33V 8-Pin CDIP Tube 制造商:Texas Instruments 功能描述:OP AMP SGL VOLT FDBK 16.5V/33V 8CDIP - Rail/Tube
THS4012 制造商:TI 制造商全稱:Texas Instruments 功能描述:290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
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