30WQ04FN datasheet(4/6 Pages) IRF

4 / 6 page

30WQ04FN

Bulletin PD-20521 rev. G 03/03

www.irf.com

Fig. 5 - Maximum Allowable Case Temperature

Vs. Average Forward Current

Fig. 6 - Forward Power Loss Characteristics

Fig. 7 - Maximum Non-Repetitive Surge Current

(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

110

115

120

125

130

135

140

145

150

155

0.5 1

1.5 2

2.5 3 3.5 4 4.5 5

F(AV)

see note (2)

Average Forward Current - I

(A)

Square wave (D = 0.50)

80%Rated V applied

0.5

1.5

2.5

00.5 11.5 22.5 3 3.5 4 4.5 5

F(AV)

RMSLimit

D = 0.20

D = 0.25

D = 0.33

D = 0.50

D = 0.75

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

(mic rosec)

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