20CTH03PBF Datasheet, PDF (5/7 Pages) International Rectifier – Hyperfast Rectifier

20CTH03PbF/20CTH03FPPbF
Hyperfast Rectifier, _{Vishay High Power Products}
2 x 10 A FRED Pt^TM
100
1000
I_F = 10 A
I_F = 10 A
T_J = 125 °C
T_J = 25 °C
T_J = 125 °C
100
T_J = 25 °C
V_R = 200 V
10
100
1000
dI_F/dt (A/µs)
Fig. 9 - Typical Reverse Recovery Time vs. dI_F/dt
V_R = 200 V
10
100
1000
dI_F/dt (A/µs)
Fig. 10 - Typical Stored Charge vs. dI_F/dt
V_R = 200 V
L = 70 µH
0.01 Ω
D.U.T.
dI_F/dt
adjust
G
D
IRFP250
S
Fig. 11 - Reverse Recovery Parameter Test Circuit
I_F
0
(3)
t_rr
t_a
t_b
(2) _IRRM
(4)
Q_rr
0.5 I_RRM
dI_(rec)M/dt ⁽⁵⁾
(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.
0.75 I_RRM
(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. 12 - Reverse Recovery Waveform and Definitions
Document Number: 94010
Revision: 11-Sep-08
For technical questions, contact: [e-mail]
www.vishay.com
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