43CTQ080GS datasheet(4/7 Pages) IRF

4 / 7 page

43CTQ...GS, 43CTQ...G-1

Bulletin PD-20834 rev. A 02/07

www.irf.com

Fig. 8 - Unclamped Inductive Test Circuit

FREE-WHEEL

DIODE

40HFL40S02

CURRENT

MONITOR

HIGH-SPEED

SWITCH

IRFP460

DUT

Rg = 25 ohm

Vd = 25 Volt

(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 = 10 V

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

Fig. 5 - Max. Allowable Case Temperature

Vs. Average Forward Current (Per Leg)

Fig. 6 - Forward Power Loss Characteristics

(Per Leg)

F(AV)

RMSLimit

Average Forward Current - I

(A)

D = 0.20

D = 0.25

D = 0.33

D = 0.50

D = 0.75

100

110

120

130

140

150

160

170

180

F(AV)

see note (2)

Square wave (D = 0.50)

80%Rated V applied

Average Forward Current - I

(A)

100

1000

100

1000

10000

At Any Rated Load Condition

And With Rated V

Applied

Following Surge

RRM

Square Wave Pulse Duration - t

(microsec)

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