欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: FDB3672
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: JFETs
英文描述: N-Channel PowerTrench MOSFET
中文描述: 7.2 A, 100 V, 0.028 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-263AB
封裝: TO-263AB, 3 PIN
文件頁數: 7/11頁
文件大小: 270K
代理商: FDB3672
2004 Fairchild Semiconductor Corporation
FDB3672 Rev. A
F
Thermal Resistance vs. Mounting Pad Area
The maximum rated junction temperature, T
JM
, and the
thermal resistance of the heat dissipating path determines
the maximum allowable device power dissipation, P
DM
, in an
application.
Therefore
the
temperature, T
A
(
o
C), and thermal resistance R
θ
JA
(
o
C/W)
must be reviewed to ensure that T
JM
is never exceeded.
Equation 1 mathematically represents the relationship and
serves as the basis for establishing the rating of the part.
application
s
ambient
In using surface mount devices such as the TO-252
package, the environment in which it is applied will have a
significant influence on the part
s current and maximum
power dissipation ratings. Precise determination of P
DM
is
complex and influenced by many factors:
1. Mounting pad area onto which the device is attached and
whether there is copper on one side or both sides of the
board.
2. The number of copper layers and the thickness of the
board.
3. The use of external heat sinks.
4. The use of thermal vias.
5. Air flow and board orientation.
6. For non steady state applications, the pulse width, the
duty cycle and the transient thermal response of the part,
the board and the environment they are in.
Fairchild provides thermal information to assist the
designer
s preliminary application evaluation. Figure 21
defines the R
θ
JA
for the device as a function of the top
copper (component side) area. This is for a horizontally
positioned FR-4 board with 1oz copper after 1000 seconds
of steady state power with no air flow. This graph provides
the necessary information for calculation of the steady state
junction
temperature
or
applications can be evaluated using the Fairchild device
Spice thermal model or manually utilizing the normalized
maximum transient thermal impedance curve.
power
dissipation.
Pulse
Thermal resistances corresponding to other copper areas
can be obtained from Figure 21 or by calculation using
Equation 2 or 3. Equation 2 is used for copper area defined
in inches square and equation 3 is for area in centimeters
square. The area, in square inches or square centimeters is
the top copper area including the gate and source pads.
(EQ. 1)
PDM
θ
JA
(
-----------------------------
)
=
Area in Inches Squared
(EQ. 2)
R
θ
JA
26.51
+
0.262
Area
)
------------19.84
+
=
Area in Centimeters Squared
(EQ. 3)
R
θ
JA
26.51
+
1.69
Area
(
)
-----------128
+
=
Figure 21. Thermal Resistance vs Mounting
Pad Area
20
40
60
80
1
10
0.1
R
θ
JA
= 26.51+ 19.84/(0.262+Area) EQ.2
R
θ
J
(
o
C
AREA, TOP COPPER AREA in
2
(cm
2
)
(0.645)
(6.45)
(64.5)
R
θ
JA
= 26.51+ 128/(1.69+Area) EQ.3
相關PDF資料
PDF描述
FDB4030L N-Channel Logic Level Enhancement Mode Field Effect Transistor
FDP4030L N-Channel Logic Level Enhancement Mode Field Effect Transistor
FDB44N25 250V N-Channel MOSFET
FDB44N25TM 250V N-Channel MOSFET
FDB52N20 200V N-Channel MOSFET
相關代理商/技術參數
參數描述
FDB3672_09 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:N-Channel PowerTrench?? MOSFET 100V, 44A, 28m??
FDB3672_F085 功能描述:MOSFET 100V 44A N-Channel PowerTrench RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續電流:130 A 電阻汲極/源極 RDS(導通):0.014 Ohms 配置:Single 最大工作溫度: 安裝風格:Through Hole 封裝 / 箱體:Max247 封裝:Tube
FDB3682 功能描述:MOSFET 100V N-Channel Pwr Trench RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續電流:130 A 電阻汲極/源極 RDS(導通):0.014 Ohms 配置:Single 最大工作溫度: 安裝風格:Through Hole 封裝 / 箱體:Max247 封裝:Tube
FDB-37PF 制造商:HRS 制造商全稱:HRS 功能描述:FD TYPE CONNECTOR FOR RIBBON CABLE
FDB-37SF 制造商:HRS 制造商全稱:HRS 功能描述:FD TYPE CONNECTOR FOR RIBBON CABLE
主站蜘蛛池模板: 土默特左旗| 洛浦县| 安化县| 石河子市| 嵩明县| 岳西县| 都昌县| 合山市| 灵川县| 固始县| 始兴县| 高要市| 江津市| 三台县| 安庆市| 兴化市| 乌兰察布市| 年辖:市辖区| 越西县| 林西县| 色达县| 海淀区| 崇明县| 寻乌县| 兴业县| 广河县| 大同市| 虹口区| 祁东县| 忻城县| 泰顺县| 永康市| 新疆| 福鼎市| 新化县| 淄博市| 牙克石市| 苍南县| 西盟| 泾川县| 安阳县|