203CMQ080 datasheet(4/5 Pages) IRF

4 / 5 page

203CMQ... Series

Bulletin PD-20565 rev. B 08/01

www.irf.com

Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)

Fig. 5 - Max. Allowable Case Temperature

Vs. Average Forward Current (Per Leg)

Fig. 8 - Unclamped Inductive Test Circuit

Fig. 6 - Forward Power Loss Characteristics

(Per Leg)

FR EE-W HE EL

D IO D E

40H FL40S02

CUR RE N T

MO N ITO R

HIG H -SPE ED

SW ITC H

IRFP460

DUT

Rg = 25 ohm

Vd = 25 V olt

(2) Formula used: T

C = TJ - (Pd + PdREV) x RthJC ;

Pd = Forward Power Loss = I

F(AV) x VFM @ (IF(AV) / D) (see Fig. 6);

REV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1 = 80% rated VR

10 0

11 0

12 0

13 0

14 0

15 0

16 0

17 0

18 0

2 55 07 5

1 0 0

1 2 5

1 50

F(A V)

see n ote (2)

A ve ra g e Forw ard C urren t - I

(A)

Squa re w ave (D = 0.50)

80% Ra te d V

ap plie d

100

2 5

1 00

12 5

150

F(A V)

RM S Lim it

D = 0.20

D = 0.25

D = 0.33

D = 0.50

D = 0.75

A ve ra g e Forw ard C urren t - I

(A)

10 0 0

100 0 0

1 0 000 0

10 0

10 0 0

10 0 00

A t A n y Ra ted Load C on dition

A n d W ith Ra te d V

A pplied

Follow in g Surg e

RRM

Square W a ve Pulse D uration - t

(m ic rose c)

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