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參數(shù)資料
| 型號： | THS6043CD |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 350 mA, 【12 V ADSL CPE LINE DRIVERS |
| 中文描述： | 350毫安，【12伏ADSL終端線路驅(qū)動器 |
| 文件頁數(shù)： | 24/33頁 |
| 文件大小： | 509K |
| 代理商： | THS6043CD |
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THS6042, THS6043
350 mA,
±
12 V ADSL CPE LINE DRIVERS
SLOS264G
–
MARCH 2000
–
REVISED DECEMBER 2001
24
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
PCB design considerations (continued)
6.
Apply solder paste to the exposed thermal pad area and all of the operational amplifier terminals.
7.
With these preparatory steps in place, the THS6042/3 is simply placed in position and run through the solder
reflow operation as any standard surface-mount component. This results in a part that is properly installed.
The actual thermal performance achieved with the THS6042/3 in their PowerPAD packages depends on the
application. In the previous example, if the size of the internal ground plane is approximately 3 inches
×
3 inches,
then the expected thermal coefficient,
θ
JA
,
is
about 95
°
C/W for the SOIC
–
8 (D) package, 45.8
°
C/W for the DDA
package, 66.6
°
C/W for the SOIC
–
14 (D) package, and 37.5
°
C/W for the PWP package. Although the maximum
recommended junction temperature (T
J
) is listed as 150
°
C, performance at this elevated temperature will suffer.
To ensure optimal performance, the junction temperature should be kept below 125
°
C. Above this temperature,
distortion will tend to increase. Figure 44 shows the recommended power dissipation with a junction
temperature of 125
°
C. If no solder is used to connect the PowerPAD to the PCB, the
θ
JA
will increase
dramatically with a vast reduction in power dissipation capability. For a given
θ
JA
and a maximum junction
temperature, the power dissipation is calculated by the following formula:
PD
TMAX
–
TA
JA
Where:
P
D
T
MAX
= Maximum junction temperature allowed in the design (125
°
C recommended)
T
A
= Free-ambient air temperature (
°
C)
θ
JA
=
θ
JC
+
θ
CA
θ
JC
= Thermal coefficient from junction to case (D
–
8 =38.3
°
C/W, DDA = 9.2
°
C/W,
D
–
14 = 26.9
°
C/W, PWP = 1.4
°
C/W)
θ
CA
= Thermal coefficient from case to ambient
= Power dissipation of THS6042/3 (watts)
0
–
40
1
2
3
4
5
–
20
0
20
40
60
80
100
M
–
Ta
–
Free-Air Temperature
–
°
C
PWP
θ
JA = 37.5
°
C/W
DDA
θ
JA = 45.8
°
C/W
D-8
θ
JA = 95
°
C/W
TJ = 125
°
C
NOTE: Results are with no air flow and PCB size = 3
”
×
3
”
2 oz. trace and copper pad with solder unless otherwise noted.
D-14
θ
JA = 66.6
°
C/W
Figure 44. Maximum Power Dissipation vs Free-Air Temperature
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| THS6043EVM | 350 mA, 【12 V ADSL CPE LINE DRIVERS |
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| THS6062DGN | LOW-NOISE ADSL DUAL DIFFERENTIAL RECEIVER |
| THS6062EVM | RECTIFIER SCHOTTKY 5A30V DO201AD |
| THS6072D | LOW-POWER ADSL DIFFERENTIAL RECEIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| THS6043CDG4 | 功能描述:高速運算放大器 350-mA +/-12V ADSL CPE Ln Drv w/Shtdwn RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS6043CDR | 功能描述:高速運算放大器 350-mA +/-12V ADSL CPE Ln Drv w/Shtdwn RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS6043CDRG4 | 功能描述:高速運算放大器 350-mA +/-12V ADSL CPE Ln Drv w/Shtdwn RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS6043CPWP | 功能描述:高速運算放大器 350-mA +/-12V ADSL CPE Ln Drv w/Shtdwn RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS6043CPWPG4 | 功能描述:高速運算放大器 350-mA +/-12V ADSL CPE Ln Drv w/Shtdwn RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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