- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69499 > TPS2043DG4 (TEXAS INSTRUMENTS INC) 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 PDF資料下載
參數(shù)資料
| 型號： | TPS2043DG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | GREEN, PLASTIC, SOIC-16 |
| 文件頁數(shù)： | 9/28頁 |
| 文件大?。?/td> | 601K |
| 代理商： | TPS2043DG4 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當(dāng)前第9頁第10頁第11頁第12頁第13頁第14頁第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
TPS2043, TPS2053
TRIPLE POWER-DISTRIBUTION SWITCHES
SLVS191 – JANUARY 1999
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
OC response (continued)
GND1
IN1
EN1
EN2
OC1
OC2
OUT1
OUT2
TPS2043
GND1
IN1
EN1
EN2
OC1
OC2
OUT1
OUT2
TPS2043
Rpullup
V+
Rfilter
Rpullup
Cfilter
To USB
Controller
V+
OC3
NC
OUT3
NC
GND2
IN2
EN3
NC
GND2
IN2
EN3
NC
OC3
NC
OUT3
NC
Figure 30. Typical Circuit for OC Pin and RC Filter for Damping Inrush OC Responses
power dissipation and junction temperature
The low on-resistance on the n-channel MOSFET allows small surface-mount packages, such as SOIC, to pass
large currents. The thermal resistances of these packages are high compared to those of power packages; it
is good design practice to check power dissipation and junction temperature. The first step is to find rDS(on) at
the input voltage and operating temperature. As an initial estimate, use the highest operating ambient
temperature of interest and read rDS(on) from Figure 21. Next, calculate the power dissipation using:
P
D +
r
DS(on)
I2
Finally, calculate the junction temperature:
T
J +
P
D
RqJA ) TA
Where:
TA = Ambient Temperature °C
RθJA = Thermal resistance SOIC = 172°C/W
Compare the calculated junction temperature with the initial estimate. If they do not agree within a few degrees,
repeat the calculation, using the calculated value as the new estimate. Two or three iterations are generally
sufficient to get an acceptable answer.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS2053DR | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| TPS2053DG4 | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| TPS2047BD | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| TPS2047BDRG4 | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| TPS2046BDG4 | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS2043DR | 功能描述:電源開關(guān) IC - USB Triple 2in 3 out .7A RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2043DRG4 | 功能描述:電源開關(guān) IC - USB DUAL HI-SIDE MOSFET RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2044 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:POWER DISTRIBUTION SWITCHES |
| TPS2044A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:0.7A. 2.7-5.5V Quad (2In/4Out) Hi-Side MOSFET. Fault Report. Act-Low Enable |
| TPS2044AD | 功能描述:電源開關(guān) IC - USB Qd .345A 2.7-5.5V Hi RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。