参数资料
型号: IRF7484PBF
厂商: International Rectifier
文件页数: 8/10页
文件大小: 0K
描述: MOSFET N-CH 40V 14A 8-SOIC
标准包装: 95
系列: HEXFET®
FET 型: MOSFET N 通道,金属氧化物
FET 特点: 逻辑电平门
漏极至源极电压(Vdss): 40V
电流 - 连续漏极(Id) @ 25° C: 14A
开态Rds(最大)@ Id, Vgs @ 25° C: 10 毫欧 @ 14A,7V
Id 时的 Vgs(th)(最大): 2V @ 250µA
闸电荷(Qg) @ Vgs: 100nC @ 7V
输入电容 (Ciss) @ Vds: 3520pF @ 25V
功率 - 最大: 2.5W
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 管件
其它名称: *IRF7484PBF
IRF7484PbF
100
Duty Cycle = Single Pulse
10
1
0.1
0.01
0.01
0.05
0.10
Allowed avalanche Current vs
avalanche pulsewidth, tav
assuming ? Tj = 25°C due to
avalanche losses
1.0E-06
1.0E-05
1.0E-04
1.0E-03
1.0E-02
1.0E-01
1.0E+00
1.0E+01
1.0E+02
1.0E+03
tav (sec)
Fig 19. Typical Avalanche Current Vs.Pulsewidth
250
225
200
175
150
125
100
75
50
TOP Single Pulse
BOTTOM 10% Duty Cycle
ID = 14A
Notes on Repetitive Avalanche Curves , Figures 15, 16:
(For further info, see AN-1005 at www.irf.com)
1. Avalanche failures assumption:
Purely a thermal phenomenon and failure occurs at a
temperature far in excess of T jmax . This is validated for
every part type.
2. Safe operation in Avalanche is allowed as long asT jmax is
not exceeded.
3. Equation below based on circuit and waveforms shown in
Figures 12a, 12b.
4. P D (ave) = Average power dissipation per single
avalanche pulse.
5. BV = Rated breakdown voltage (1.3 factor accounts for
voltage increase during avalanche).
6. I av = Allowable avalanche current.
25
0
25
50 75 100 125
Starting T J , Junction Temperature (°C)
150
7. ? T = Allowable rise in junction temperature, not to exceed
T jmax (assumed as 25°C in Figure 15, 16).
t av = Average time in avalanche.
D = Duty cycle in avalanche = t av ·f
Z thJC (D, t av ) = Transient thermal resistance, see figure 11)
8
Fig 20. Maximum Avalanche Energy
Vs. Temperature
P D (ave) = 1/2 ( 1.3·BV·I av ) = D T/ Z thJC
I av = 2 D T/ [1.3·BV·Z th ]
E AS (AR) = P D (ave) ·t av
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IRF7484QPBF 制造商:International Rectifier 功能描述:MOSFET, 40V, 14A, 10 MOHM, 69 NC QG, SO-8 - Rail/Tube
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IRF7484TR 制造商:International Rectifier 功能描述:TRANS MOSFET N-CH 40V 14A 8SOIC - Tape and Reel
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