STTH803G datasheet(3/6 Pages) STMICROELECTRONICS

Part #	STTH803G

Description	HIGH FREQUENCY SECONDARY RECTIFIER

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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01234

5678

9

10

0

2

4

6

8

10

12

IF(av) (A)

P1(W)

T

δ=tp/T

tp

δ = 1

δ = 0.5

δ = 0.2

δ = 0.1

δ = 0.05

Fig. 1: Conduction losses versus average current.

0.50

0.75

1.00

1.25

1.50

1.75

2.00

2.25

2.50

0.1

1.0

10.0

100.0

VFM(V)

IFM(A)

Tj=125°C

Tj=25°C

Tj=75°C

Fig. 2: Forward voltage drop versus forward

current (maximum values

).

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

δ=tp/T

tp

Single pulse

δ = 0.5

δ = 0.2

δ = 0.1

Fig. 3: Relative variation of thermal impedance

junction to case versus pulse duration.

0

50

100 150 200 250 300 350 400 450 500

0

10

20

30

40

50

60

70

80

90

100

trr(ns)

VR=200V

Tj=125°C

IF=2*IF(av)

IF=IF(av)

IF=0.5*IF(av)

dIF/dt(A/µs)

Fig. 5: Reverse recovery time versus dIF/dt (90%

confidence).

0

50

100 150 200 250 300 350 400 450 500

0

2

4

6

8

10

12

14

16

dIF/dt(A/µs)

IRM(A)

VR=200V

Tj=125°C

IF=2*IF(av)

IF=IF(av)

IF=0.5*IF(av)

Fig. 4:

Peak reverse recovery current versus

dIF/dt (90% confidence).

0

50

100 150 200 250 300 350 400 450 500

0.00

0.10

0.20

0.30

0.40

0.50

0.60

S factor

VR=200V

Tj=125°C

dIF/dt(A/µs)

Fig. 6:

Softness factor versus dIF/dt (typical

values).

STTH803D/G

3/6

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