STPS1045B datasheet(3/7 Pages) STMICROELECTRONICS

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STPS1045B

Characteristics

Doc ID 6085 Rev 6

3/7

Figure 1.

Average forward power dissipation

versus average forward current

Figure 2.

Average forward current versus

ambient temperature (

δ : 0.5)

01234567

P(W)

F(AV)

δ=tp/T

(A)

F(AV)

δ = 1

δ = 0.05 δ = 0.1

δ = 0.2

δ = 0.5

100

125

150

175

(A)

F(AV)

(°C)

amb

R=R

th(j-a)

th(j-c)

=15°C/W

th(j-a)

=70°C/W

th(j-a)

Figure 3.

Normalized avalanche power

derating versus pulse duration

Figure 4.

Normalized avalanche power

derating versus junction

temperature

0.001

0.01

0.1

0.01

0.1

100

1000

t (µs)

P(t )

(1µs)

ARM p

ARM

0.2

0.4

0.6

0.8

1.2

100

125

150

T (°C)

P(T )

(25 °C)

ARM

Figure 5.

Non repetitive surge peak forward

current versus overload duration

(maximum values)

Figure 6.

Relative variation of thermal

impedance junction to case versus

pulse duration

1E-3

1E-2

1E-1

1E+0

100

120

δ=0.5

I (A)

t(s)

T =50°C

T =100°C

T =150°C

1E-4

1E-3

1E-2

1E-1

1E+0

0.0

0.2

0.4

0.6

0.8

1.0

Z/R

th(j-c)

δ=tp/T

t (s)

δ = 0.5

δ = 0.2

δ = 0.1

Single pulse

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