參數(shù)資料
型號(hào): IRF3007LPBF
元件分類: JFETs
英文描述: 62 A, 75 V, 0.0126 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-262AA
封裝: LEAD FREE, PLASTIC, TO-262, 3 PIN
文件頁數(shù): 9/11頁
文件大?。?/td> 323K
代理商: IRF3007LPBF
IRF3007S/LPbF
www.irf.com
7
Fig 15. Typical Avalanche Current Vs.Pulsewidth
Fig 16. Maximum Avalanche Energy
Vs. Temperature
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 Tjmax. This is validated for
every part type.
2. Safe operation in Avalanche is allowed as long asTjmax is
not exceeded.
3. Equation below based on circuit and waveforms shown in
Figures 12a, 12b.
4. PD (ave) = Average power dissipation per single
avalanche pulse.
5. BV = Rated breakdown voltage (1.3 factor accounts for
voltage increase during avalanche).
6. Iav = Allowable avalanche current.
7.
T = Allowable rise in junction temperature, not to exceed
Tjmax (assumed as 25°C in Figure 15, 16).
tav = Average time in avalanche.
D = Duty cycle in avalanche = tav f
ZthJC(D, tav) = Transient thermal resistance, see figure 11)
PD (ave) = 1/2 ( 1.3BVIav) = DT/ ZthJC
Iav = 2
DT/ [1.3BVZth]
EAS (AR) = PD (ave)tav
25
50
75
100
125
150
175
Starting TJ , Junction Temperature (°C)
0
100
200
300
E
A
R
,A
va
la
nc
he
E
ne
rg
y
(m
J)
TOP
Single Pulse
BOTTOM 50% Duty Cycle
ID = 48A
1.0E-08
1.0E-07
1.0E-06
1.0E-05
1.0E-04
1.0E-03
1.0E-02
1.0E-01
tav (sec)
0.1
1
10
100
1000
A
va
la
nc
he
C
ur
re
nt
(A
)
0.05
Duty Cycle = Single Pulse
0.10
Allowed avalanche Current vs
avalanche pulsewidth, tav
assuming Tj = 25°C due to
avalanche losses. Note: In no
case should Tj be allowed to
exceed Tjmax
0.01
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