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參數(shù)資料
| 型號： | THS6002EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL DIFFERENTIAL LINE DRIVERS AND RECEIVERS |
| 中文描述： | 雙差分線路驅(qū)動(dòng)與接收 |
| 文件頁數(shù)： | 31/40頁 |
| 文件大?。?/td> | 718K |
| 代理商： | THS6002EVM |
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THS6002
DUAL DIFFERENTIAL LINE DRIVERS AND RECEIVERS
SLOS202D– JANUARY 1998– REVISED JULY 1999
31
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
PCB design considerations (continued)
Proper power supply decoupling – Use a minimum of a 6.8-
μ
F tantalum capacitor in parallel with a 0.1-
μ
F
ceramic capacitor on each supply terminal. It may be possible to share the tantalum among several
amplifiers depending on the application, but a 0.1-
μ
F ceramic capacitor should always be used on the
supply terminal of every amplifier. In addition, the 0.1-
μ
F capacitor should be placed as close as possible
to the supply terminal. As this distance increases, the inductance in the connecting etch makes the capacitor
less effective. The designer should strive for distances of less than 0.1 inches between the device power
terminal and the ceramic capacitors.
Because of its power dissipation, proper thermal management of the THS6002 is required. Although there are
many ways to properly heatsink this device, the following steps illustrate one recommended approach for a
multilayer PCB with an internal ground plane.
1.
Prepare the PCB with a top side etch pattern as shown in Figure 57. There should be etch for the leads as
well as etch for the thermal pad.
2.
Place five holes in the area of the thermal pad. These holes should be 13 mils in diameter. They are kept
small so that solder wicking through the holes is not a problem during reflow.
3.
Place four more holes under the package, but outside the thermal pad area. These holes are 25 mils in
diameter. They may be larger because they are not in the area to be soldered so that wicking is not a
problem.
4.
Connect all nine holes, the five within the thermal pad area and the four outside the pad area, to the internal
ground plane.
5.
When connecting these holes to the ground plane, do
not
use the typical web or spoke via connection
methodology. Web connections have a high thermal resistance connection that is useful for slowing the heat
transfer during soldering operations. This makes the soldering of vias that have plane connections easier.
However, in this application, low thermal resistance is desired for the most efficient heat transfer. Therefore,
the holes under the THS6002 package should make their connection to the internal ground plane with a
complete connection around the entire circumference of the plated through hole.
6.
The top-side solder mask should leave exposed the terminals of the package and the thermal pad area with
its five holes. The four larger holes outside the thermal pad area, but still under the package, should be
covered with solder mask.
7.
Apply solder paste to the exposed thermal pad area and all of the operational amplifier terminals.
8.
With these preparatory steps in place, the THS6002 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.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| THS6002IDWP | 功能描述:緩沖器和線路驅(qū)動(dòng)器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| THS6002IDWP | 制造商:Texas Instruments 功能描述:TRANSCEIVER DUAL SMD 6002 SOIC20 |
| THS6002IDWPG4 | 功能描述:緩沖器和線路驅(qū)動(dòng)器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| THS6002IDWPR | 功能描述:緩沖器和線路驅(qū)動(dòng)器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| THS6002IDWPRG4 | 功能描述:緩沖器和線路驅(qū)動(dòng)器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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