參數(shù)資料
型號(hào)： IRFSL4610
廠商： International Rectifier
英文描述： IRFB4610 IRFS4610 IRFSL4610
中文描述： IRFB4610 IRFS4610 IRFSL4610
文件頁數(shù)： 5/11頁
文件大?。?/td> 381K
代理商： IRFSL4610
www.irf.com
5
1E-006
1E-005
0.0001
0.001
0.01
0.1
t1 , Rectangular Pulse Duration (sec)
0.0001
0.001
0.01
0.1
1
T
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
Fig 13.
Maximum Effective Transient Thermal Impedance, Junction-to-Case
Fig 14.
Typical Avalanche Current vs.Pulsewidth
Fig 15.
Maximum Avalanche Energy vs. Temperature
Ri (°C/W)
τ
i (sec)
0.4367 0.001016
0.3337 0.009383
τ
J
τ
J
τ
1
τ
1
τ
2
τ
2
R
1
R
1
R
2
R
2
τ
τ
C
Ci i
/
Ri
Ci=
i
/
Ri
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 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 16a, 16b.
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.
7.
T
=
Allowable rise in junction temperature, not to exceed
T
jmax
(assumed as
25°C in Figure 14, 15).
t
av =
Average time in avalanche.
D = Duty cycle in avalanche = t
av
·f
Z
thJC
(D, t
av
) = Transient thermal resistance, see Figures 13)
P
D (ave)
= 1/2 ( 1.3·BV·I
av
) = T/ Z
thJC
I
av
=
2 T/ [1.3·BV·Z
th
]
E
AS (AR)
= P
D (ave)
·t
av
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
0.05
Duty Cycle = Single Pulse
0.10
Allowed avalanche Current vs
avalanche
pulsewidth,
assuming
Tj = 25°C due to
avalanche losses. Note: In no
case should Tj be allowed to
exceed Tjmax
tav
0.01
25
50
75
100
125
150
175
Starting TJ , Junction Temperature (°C)
0
100
200
300
400
EA
TOP Single Pulse
BOTTOM 1% Duty Cycle
ID = 44A
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