參數(shù)資料
型號： AUIRFR4620TRR
元件分類： JFETs
英文描述： 24 A, 200 V, 0.078 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-252AA
封裝： ROHS COMPLIANT, PLASTIC, DPAK-3
文件頁數(shù)： 9/12頁
文件大小： 235K
代理商： AUIRFR4620TRR
AUIRFR4620
6
www.irf.com
Fig 13. Maximum Effective Transient Thermal Impedance, Junction-to-Case
Fig 14. Typical Avalanche Current vs.Pulsewidth
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 Figures 16a, 16b.
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 = 2
DT/ [1.3BVZth]
EAS (AR) = PD (ave)tav
1E-006
1E-005
0.0001
0.001
0.01
0.1
t1 , Rectangular Pulse Duration (sec)
0.001
0.01
0.1
1
10
T
he
rm
al
R
es
po
ns
e
(
Z
th
JC
)
°C
/W
0.20
0.10
D = 0.50
0.02
0.01
0.05
SINGLE PULSE
( THERMAL RESPONSE )
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
τ
J
τJ
τ
1
τ
1
τ
2
τ
2
R
1
R
1
R
2
R
2
τ
C
Ci
i
/Ri
Ci=
τi/Ri
Ri (°C/W)
τi (sec)
0.456
0.000311
0.589
0.003759
25
50
75
100
125
150
175
Starting TJ , Junction Temperature (°C)
0
20
40
60
80
100
120
E
A
R
,A
va
la
nc
he
E
ne
rg
y
(m
J)
TOP
Single Pulse
BOTTOM 1.0% Duty Cycle
ID = 15A
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
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
ΔΤj = 25°C and
Tstart = 150°C.
0.01
Allowed avalanche Current vs avalanche
pulsewidth, tav, assuming
ΔTj = 150°C and
Tstart =25°C (Single Pulse)
相關(guān)PDF資料
PDF描述
AUIRFR4620TR 24 A, 200 V, 0.078 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-252AA
AUIRFR48ZTRL 42 A, 55 V, 0.011 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-252AA
AUIRFR48ZTR 42 A, 55 V, 0.011 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-252AA
AUIRFR48Z 42 A, 55 V, 0.011 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-252AA
AUIRFR48ZTRR 42 A, 55 V, 0.011 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-252AA
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