STPS1645D

2/4

Symbol

Parameter

Value

Unit

Junction to case

1.6

°C/W

THERMAL RESISTANCES

Symbol

Parameter

Tests Conditions

Min.

Typ.

Max.

Unit

Reverse leakage current

Tj = 25°C

200

µA

Tj = 125°C

11

40

mA

Forward voltage drop

Tj = 125°C

0.5

0.57

V

STATIC ELECTRICAL CHARACTERISTICS

Pulse test :

* tp = 380

µs, δ <2%

To evaluate the conduction losses use the following equation :

2

(RMS)

0

2

4

6

8

10

12

14

16

18

0

2

4

6

8

10

12

IF(av) (A)

PF(av)(W)

δ = 1

δ = 0.5

δ = 0.2

δ = 0.1

δ = 0.05

T

tp

Fig. 1: Average forward power dissipation versus

average forward current.

0

25

50

75

100

125

150

175

0

2

4

6

8

10

12

14

16

18

Tamb(°C)

IF(av)(A)

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

Rth(j-a)=15°C/W

TO-220AC

T

tp

Fig.

2:

Average

current

versus

ambient

temperature (

δ : 0.5).

1E-3

1E-2

1E-1

1E+0

0

20

40

60

80

100

120

140

160

180

200

t(s)

IM(A)

Tc=75°C

Tc=100°C

Tc=125°C

t

δ=0.5

Fig. 3: Non repetitive surge peak forward current

versus overload duration (maximum values).

1E-4

1E-3

1E-2

1E-1

1E+0

0.0

0.2

0.4

0.6

0.8

1.0

tp(s)

Zth(j-c)/Rth(j-c)

T

tp

Single pulse

δ = 0.1

δ = 0.2

δ = 0.5

Fig. 4: Relative variation of thermal transient im-

pedance junction to case versus pulse duration.