- 您現在的位置：買賣IC網 > PDF目錄98281 > TPS40054QPWPRQ1 (TEXAS INSTRUMENTS INC) SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 PDF資料下載
參數資料
| 型號： | TPS40054QPWPRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | PLASTIC, HTSSOP-16 |
| 文件頁數： | 15/28頁 |
| 文件大小： | 571K |
| 代理商： | TPS40054QPWPRQ1 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
www.ti.com
Thermal Pad
6,60 mm
6,20 mm
4,50 mm
4,30 mm
8
1
2,31 mm
1,75 mm
5,10 mm
4,90 mm
2,46 mm
1,86 mm
MOSFET PACKAGING
GROUNDING AND CIRCUIT LAYOUT CONSIDERATIONS
TPS40054-Q1, TPS40055-Q1, TPS40057-Q1
SLAS482A – AUGUST 2005 – REVISED NOVEMBER 2005
LAYOUT CONSIDERATIONS (continued)
plugged when the copper plating is performed, then a solder mask material should be used to cap the vias with a
diameter equal to the via diameter of 0,1 mm minimum. This capping prevents the solder from being wicked
through the thermal vias and potentially creating a solder void under the package. See the PowerPAD Thermally
Enhanced Package[2] and the mechanical illustration at the end of this document for more information on the
PowerPAD package.
Figure 16. PowerPAD Dimensions
MOSFET package selection depends on MOSFET power dissipation and the projected operating conditions. In
general, for a surface-mount applications, the DPAK style package provides the lowest thermal impedance (
θ
JA)
and, therefore, the highest power dissipation capability. However, the effectiveness of the DPAK depends on
proper layout and thermal management. The
θ
JA specified in the MOSFET data sheet refers to a given copper
area and thickness. In most cases, a lowest thermal impedance of 40
°C/W requires one square inch of 2-ounce
copper on a G-10/FR-4 board. Lower thermal impedances can be achieved at the expense of board area. See
the selected MOSFET's data sheet for more information regarding proper mounting.
The TPS4005x provides separate signal ground (SGND) and power ground (PGND) pins. It is important that
circuit grounds are properly separated. Each ground should consist of a plane to minimize its impedance if
possible. The high power noisy circuits such as the output, synchronous rectifier, MOSFET driver decoupling
capacitor (BP10), and the input capacitor should be connected to PGND plane at the input capacitor.
Sensitive nodes such as the FB resistor divider RT) and ILIM should be connected to the SGND plane. The
SGND plane should only make a single point connection to the PGND plane.
Component placement should ensure that bypass capacitors (BP10 and BP5) are located as close as possible to
their respective power and ground pins. Also, sensitive circuits such as FB, RT, and ILIM should not be located
near high dv/dt nodes such as HDRV, LDRV, BOOST, and the switch node (SW).
22
相關PDF資料 |
PDF描述 |
|---|---|
| TPS40070PWPRG4 | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| TPS40071PWPR | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| TPS40070PWPR | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| TPS40074RHLT | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20 |
| TPS40074RHLRG4 | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS40055 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:WIDE INPUT SYNCHRONOUS BUCK CONTROLLER |
| TPS40055-EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER |
| TPS40055EVM-001 | 功能描述:電源管理IC開發工具 Eval Mod Converter RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS40055EVM-002 | 功能描述:電源管理IC開發工具 Wide Input Range Converter RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS40055MPWPREP | 功能描述:DC/DC 開關控制器 Mil Enh Wide Input Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
發布緊急采購，3分鐘左右您將得到回復。