400DMQ datasheet(4/5 Pages) IRF

No de pièce	400DMQ

Description	The 400DMQ high current, Schottky rectifier doubler module series has been optimized for very low forward voltage drop, with moderate leakage.

PDF	5 Pages

Scroll/Zoom	100%

Fabricant	IRF [International Rectifier]

Site Internet	http://www.irf.com

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4 / 5 page

400DMQ... Series

Bulletin PD-20736 rev. B 10/02

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

= T

- (Pd + Pd

REV

) x R

thJC

;

Pd = Forward Power Loss = I

F(AV)

x V

@ (I

F(AV) /

D) (see Fig. 6);

REV

= Inverse Power Loss = V

x I

(1 - D); I

@ V

= 80% rated V

Fig. 5 - Max. Allowable Case Temperature

Vs. Average Forward Current

Fig. 6 - Forward Power Loss Characteristics

AverageForwardCurrent-I

F(AV)

(A)

AverageForwardCurrent-I

F(AV)

(A)

SquareWavePulseDuration-t

(microsec)

Fig. 7 - Max. Non-Repetitive Surge Current

100

200

300

400

500

100

200

300

400

500

600

RMS Limit

D = 0.20

D = 0.25

D = 0.33

D = 0.50

D = 0.75

1000

10000

100000

100

1000

10000

At Any Rated Load Condition

And With Rated V

Applied

Following Surge

RRM

120

150

180

200

400

600

see note (2)

Square wave (D = 0.50)

80% Rated V applied

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