For more information, please refer to the following application notes related to the power losses :

•

AN604: Calculation of conduction losses in a power rectifier

•

AN4021: Calculation of reverse losses on a power diode

1.1

Characteristics (curves)

Figure 1. Average forward power dissipation versus

average forward current

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

0.0

0.2

0.4

0.6

0.8 1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

P

(W)

F(AV)

I

(A)

F(AV)

T

δ=tp/T

tp

δ = 1

δ = 0.05

δ = 0.5

δ = 0.1

δ = 0.2

Figure 2. Average forward current versus ambient

temperature (δ = 0.5, DO-41, SMA)

I

(A)

F(AV)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

0

25

50

75

100

125

150

SMA

th(j-a

th(j-l

)

)

=R

R

R

Tamb (°C)

DO-41

=100°C/W

)

th(j-a

tp

T

δ=tp/T

Figure 3. Average forward current versus ambient

temperature (δ = 0.5, SMB Flat)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

0

2 5

5 0

75

100

125

150

Rth(j-a)=Rth(j-l)

SMB Flat

SMBflat

SMB Flat

Rth(j-a)=40 °C/W

Scu=2.5 cm²

SMBflat

Rth(j-a)=40 °C/W

Scu=2.5 cm²

I

(A)

F(AV)

T

(°C)

amb

T

δ=tp/T

tp

Figure 4. Normalized avalanche power derating versus

pulse duration (Tj = 125 °C)

P

(tp)

P

(10 µs)

ARM

ARM

0.001

0.01

0.1

1

1

10

100

1000

t (µs)

p

STPS2L60

Characteristics (curves)

DS2976 - Rev 8

page 3/15