VS-ETU0805-M3 Datasheet, PDF (5/9 Pages) Vishay Siliconix – Ultrafast soft recovery time

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130
110
90
I_F = 8 A, 125 °C
70
I_F = 8 A, 25 °C
50
30
typical value
10
100
1000
dI_F/dt (A/μs)
Fig. 9 - Typical Reverse Recovery vs. dI_F/dt
VS-ETU0805-M3, VS-ETU0805FP-M3
Vishay Semiconductors
800
700
600
I_F = 8 A, 125 °C
500
400
I_F = 8 A, 25 °C
300
200
100
0
100
typical value
1000
dI_F/dt (A/μs)
Fig. 10 - Typical Stored Charge vs. dI_F/dt
I_F
0
(3)
t_rr
t_a
t_b
(2) _IRRM
(4)
Q_rr
0.5 I_RRM
dI_(rec)M/dt ⁽⁵⁾
0.75 I_RRM
(1) ^dIF^/dt
(1) dI_F/dt - rate of change of current
through zero crossing
(2) I_RRM - peak reverse recovery current
(3) t_rr - reverse recovery time measured
from zero crossing point of negative
going I_F to point where a line passing
through 0.75 I_RRM and 0.50 I_RRM
extrapolated to zero current.
(4) Q_rr - area under curve defined by t_rr
and I_RRM
Q_rr =
t_rr x I_RRM
2
(5) dI_(rec)M/dt - peak rate of change of
current during t_b portion of t_rr
Fig. 11 - Reverse Recovery Waveform and Definitions
Revision: 10-Jul-15
5
Document Number: 94813
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