STPS340U datasheet(4/11 Pages) STMICROELECTRONICS

4 / 11 page

Characteristics

STPS340

4/11

Figure 7.

Non repetitive surge peak forward

current versus overload duration

(maximum values) SMB flat

Figure 8.

Normalized avalanche power

derating versus pulse duration

1.E-03

1.E-02

1.E-01

1.E+00

I (A)

SMB flat

δ=0.5

t(s)

T =25°C

T =75°C

T =125°C

0.001

0.01

0.1

0.01

0.1

100

1000

t (µs)

P(t )

(1µs)

ARM p

ARM

Figure 9.

Normalized avalanche power

derating versus junction

temperature

Figure 10.

Relative variation of thermal

impedance junction to ambient

versus pulse duration (DPAK)

0.2

0.4

0.6

0.8

1.2

100

125

150

T (°C)

P(t )

(25°C)

ARM p

ARM

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.E-03

1.E-02

1.E-01

1.E+00

Z/R

th(j-a)

δ=tp/T

t (s)

Single pulse

DPAK

Figure 11.

Relative variation of thermal

impedance junction to ambient

versus pulse duration (SMB)

Figure 12.

Relative variation of thermal

impedance junction to ambient

versus pulse duration (SMC)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.E-02

1.E-01

1.E+00

1.E+01

1.E+02

1.E+03

Z/R

th(j-a)

δ=tp/T

t (s)

Single pulse

SMB

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.E-02

1.E-01

1.E+00

1.E+01

1.E+02

1.E+03

Z/R

th(j-a)

δ=tp/T

t (s)

Single pulse

SMC

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