參數(shù)資料
型號(hào): TLV2464AQD
廠商: Texas Instruments, Inc.
英文描述: FAMILY OF LOW-POWER RAIL-TO-RAIL INPUT/OUTPUT OPERATIONAL AMPLIFIERS WITH SHUTDOWN
中文描述: 家庭的低功耗軌到軌輸入/輸出運(yùn)算放大器,具有關(guān)斷
文件頁(yè)數(shù): 28/58頁(yè)
文件大小: 1441K
代理商: TLV2464AQD
SLOS220J JULY 1998 REVISED FEBRUARY 2004
28
WWW.TI.COM
APPLICATION INFORMATION
general power dissipation considerations
For a given
θ
JA
, the maximum power dissipation is shown in Figure 53 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 THS246x IC (watts)
1
0.75
0.5
0
5540 25 10 5
M
1.25
1.5
MAXIMUM POWER DISSIPATION
vs
FREE-AIR TEMPERATURE
1.75
20 35
50
0.25
TA Free-Air Temperature
°
C
2
65 80 95 110 125
MSOP Package
Low-K Test PCB
θ
JA = 260
°
C/W
TJ = 150
°
C
PDIP Package
Low-K Test PCB
θ
JA = 104
°
C/W
SOIC Package
Low-K Test PCB
θ
JA = 176
°
C/W
SOT-23 Package
Low-K Test PCB
θ
JA = 324
°
C/W
NOTE A: Results are with no air flow and using JEDEC Standard Low-K test PCB.
Figure 53. Maximum Power Dissipation vs Free-Air Temperature
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