參數(shù)資料
型號: FDD16AN08A0
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: JFETs
英文描述: N-Channel UltraFET Trench MOSFET 75V, 50A, 16mз
中文描述: 9 A, 75 V, 0.016 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-252AA
文件頁數(shù): 7/11頁
文件大小: 242K
代理商: FDD16AN08A0
2002 Fairchild Semiconductor Corporation
FDD16AN08A0 Rev. A1
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
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.
the
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. The area, in square inches is the top copper
area including the gate and source pads.
(EQ. 1)
PDM
θ
JA
(
-----------------------------
)
=
(EQ. 2)
R
θ
JA
33.32
+
0.268
Area
(
)
-----------23.84
+
=
25
50
75
100
125
0.01
0.1
1
10
Figure 21. Thermal Resistance vs Mounting
Pad Area
R
θ
JA
= 33.32 + 23.84/(0.268+Area)
θ
J
(
o
C
AREA, TOP COPPER AREA (in
2
)
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相關代理商/技術參數(shù)
參數(shù)描述
FDD16AN08A0_F085 功能描述:MOSFET Trans N-Ch 75V 9A 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(xù)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
FDD16AN08A0_NF054 功能描述:MOSFET 75V 50a .16Ohms 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(xù)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
FDD16AN08A0_NL 制造商:Rochester Electronics LLC 功能描述:- Bulk
FDD16AN08A0_Q 功能描述:MOSFET 75V 50a .16Ohms/VGS=1V 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(xù)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
FDD16AN08LA0 制造商:Fairchild Semiconductor Corporation 功能描述: