參數(shù)資料
型號: AUIRF1324WL
元件分類: JFETs
英文描述: 240 A, 24 V, 0.0013 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-262AA
封裝: ROHS COMPLIANT, PLASTIC, TO-262 WIDELEAD, 3 PIN
文件頁數(shù): 9/11頁
文件大?。?/td> 238K
代理商: AUIRF1324WL
AUIRF1324WL
www.irf.com
7
Fig 15. Maximum Avalanche Energy vs. Temperature
Notes on Repetitive Avalanche Curves , Figures 14, 15:
(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 Figure 22a, 22b.
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.
ΔT = Allowable rise in junction temperature, not to exceed Tjmax (assumed as
25°C in Figure 14, 15).
tav = Average time in avalanche.
D = Duty cycle in avalanche = tav f
ZthJC(D, tav) = Transient thermal resistance, see Figures 13)
PD (ave) = 1/2 ( 1.3BVIav) =
DT/ ZthJC
Iav = 2DT/ [1.3BVZth]
EAS (AR) = PD (ave)tav
Fig 16. Threshold Voltage vs. Temperature
25
50
75
100
125
150
175
Starting TJ , Junction Temperature (°C)
0
100
200
300
400
500
600
E
A
R
,A
va
la
nc
he
E
ne
rg
y
(m
J)
TOP
Single Pulse
BOTTOM 1.0% Duty Cycle
ID = 195A
-75 -50 -25 0
25 50 75 100 125 150 175
TJ , Temperature ( °C )
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
V
G
S
(t
h)
,G
at
e
th
re
sh
ol
d
V
ol
ta
ge
(V
)
ID = 250μA
ID = 1.0mA
ID = 1.0A
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