0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1

0

100

200

300

400

500

I M(A)

P=20W

P=30W

P=40W

T

I

M

=tp/T

tp

Fig.2 : Peak current versus form factor.

Tj= 125 C

o

IFM(A)

0.1

1

10

100

300

VFM(V)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

Fig.3 : Forward voltage drop versus forward cur-

rent (maximum values).

0.1

1.0

0.2

0.5

Zth(j-c) (tp.

)

K=

Rth(j-c)

=0 . 5

=0 . 2

=0 .1

Singl e puls e

tp(s)

T

=tp/T

tp

1.0E-03

1.0E-02

1.0E-01

1. 0E+00

K

Fig.4 : Relative variation of thermal impedance

junction to case versus pulse duration.

0

5

10

15

20

25

30

0.0

2.5

5.0

7.5

10.0

12.5

15.0

17.5

20.0

22.5

25.0

27.5

30.0

=0.05

=0.1

=0.2

=0.5

T

=tp/T

tp

IF(av)(A)

PF(av)(W)

=1

Fig.1 : Average forward power dissipation versus

average forward current.

0

20

40

60

80

100

120

140

160

0

5

10

15

20

25

30

T

=tp/T

tp

=0.5

F(av)(A)

I

o

Tamb( C)

Rth(j-a)=15

C/W

o

Rth(j-a)=Rth(j-c)

Fig.6 : Average current versus ambient tempera-

ture. (

δ = 0.5)

0.001

0.01

0.1

1

0

50

100

150

200

250

300

IM

t

=0.5

t(s)

IM(A)

Tc=25 C

o

Tc=75 C

o

Tc=125 C

o

Fig.5 : Non repetitive surge peak forward current

versus overload duration.

BYW77G-200

3/5