Datasheet STPS745G, STPS745F, STPS745D Datasheet (SGS Thomson Microelectronics)



MAINPRODUCT CHARACTERISTICS

STPS745D/F/G

POWER SCHOTTKY RECTIFIER

I

F(AV)

V

RRM

7.5 A
45 V

Tj (max) 175 °C

(max) 0.57 V

V

F

FEATURESAND BENEFITS

VERYSMALLCONDUCTIONLOSSES
NEGLIGIBLESWITCHINGLOSSES
EXTREMELYFAST SWITCHING
INSULATEDPACKAGE:ISOWATT220AC

Insulatingvoltage= 2000VDC
Capacitance= 12pF

DESCRIPTION

Single Schottky rectifier suited for Switch Mode
Power Supply and high frequencyDC to DC con­verters.

Packaged either in TO-220AC, ISOWATT220AC

2

or D

PAK, this device is intended for use in low
voltage, high frequency inverters, free wheeling
and polarityprotectionapplications.

ABSOLUTERATINGS

(limiting values)

TO-220AC

STPS745D

A

K

K

D2PAK

STPS745G

A

K

ISOWATT220AC

STPS745F

A

NC

Symbol Parameter Value Unit

V

RRM

I

F(RMS)

I

F(AV)

Repetitivepeakreversevoltage 45 V
RMSforwardcurrent 20 A
Averageforward current

δ

= 0.5

TO-220AC/

2

PAK

D

Tc = 160°C 7.5 A

ISOWATT220AC Tc = 145°C

I

FSM

Surgenonrepetitiveforward

tp = 10ms sinusoidal 150 A

current

I

RRM

I

RSM

Repetitivepeakreversecurrent tp = 2µs square F = 1kHz 1 A
Non repetitivepeak reverse

tp = 100 µs square 2 A

current

Tstg Storagetemperature range - 65 to+ 175 °C

Tj Maximum operatingjunction temperature* 175 °C

dV/dt Criticalrate of rise of reverse voltage 10000 V/µs

dPtot

*:

dTj

June 1999 - Ed: 4D

<

1

Rth(j−a

thermal runawayconditionfor a diode on its ownheatsink

)

1/7

STPS745D/F/G

THERMALRESISTANCES

Symbol Parameter Value Unit

R

th (j-c)

Junctionto case TO-220AC/ D2PAK 3.0 °C/W

ISOWATT220AC 5.5

STATICELECTRICAL CHARACTERISTICS

Symbol Parameter TestsConditions Min. Typ. Max. Unit

* Reverseleakage current Tj = 25°CV

I

R

R=VRRM

100

Tj = 125°C 5 15 mA

* Forwardvoltagedrop Tj = 125°CI

V

F

Tj = 25°CI
Tj = 125°CI

Pulse test : * tp = 380 µs, δ <2%

= 7.5 A 0.5 0.57 V

F

= 15 A 0.84

F

= 15 A 0.65 0.72

F

To evaluatethe conductionlossesuse thefollowingequation:
P = 0.42x I

F(AV)

+0.020I

F2(RMS)

µ

A

2/7

STPS745D/F/G

Fig. 1:

Average forward power dissipation versus

averageforwardcurrent.

PF(av)(W)

6
5
4
3
2
1
0

012345678910

Fig. 3-1:

current versus overload duration (maximum
values) (TO-220ACand D

IM(A)

120
100

80
60
40

IM

20

0

1E-3 1E-2 1E-1 1E+0

δ = 0.1

δ = 0.05

IF(av)(A)

δ= 0.5δ = 0.2

δ =1

T

=tp/T tp

δ

Non repetitive surge peak forward

2

PAK).

Tc=50°C

Tc=100°C

Tc=150°C

δ=0.5

t

t(s)

Fig. 2:

Average current versus ambient

temperature (δ = 0.5).

IF(av)(A)

9
8
7
6
5

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

ISOWATT220AB

Rth(j-a)=15°C/W

Rth(j-a)=40°C/W

TO-220AC

4
3
2
1
0

0 25 50 75 100 125 150 175

Fig. 3-2:

δ

T

=tp/T

tp

Tamb(°C)

Non repetitive surge peak forward
current versus overload duration (maximum
values) (ISOWATT220AC).

IM(A)

80
70
60
50
40
30
20

IM

10

0

1E-3 1E-2 1E-1 1E+0

δ=0.5

t

t(s)

Tc=50°C

Tc=100°C

Tc=150°C

Fig. 4-1:

impedancejunction to caseversus pulse duration
(TO-220ACand D

Relative variation of thermal transient

2

PAK).

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

1.0

0.8

δ= 0.5

0.6

0.4

δ

=tp/T

T

tp

δ = 0.2

0.2

δ = 0.1

Single pulse

0.0
1E-4 1E-3 1E-2 1E-1 1E+0

tp(s)

Fig. 4-2:

Relative variation of thermal transient
impedancejunction to case versus pulse duration
(ISOWATT220AC).

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

1.0

0.8

δ = 0.5

0.6

0.4

δ

=tp/T

T

tp

3/7

δ = 0.2

0.2

δ = 0.1
Single pulse

0.0

1E-3 1E-2 1E-1 1E+0 1E+1

tp(s)

STPS745D/F/G

Fig. 5:

Reverse leakage current versus reverse

voltageapplied(typical values).

IR(µA)

5E+4
1E+4

1E+3
1E+2

Tj=150°C

Tj=125°C

Tj=100°C

Tj=75°C

Tj=50°C

1E+1

Tj=25°C

1E+0

VR(V)

1E-1

0 5 10 15 20 25 30 35 40 45

Fig. 7: Forward voltage drop versus forward
current(maximum values).

IFM(A)

100.0

Tj=125°C

Typicalvalues

10.0

Tj=125°C

1.0

VFM(V)

0.1

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Tj=25°C

Fig. 6:

Junction capacitance versus reverse

voltageapplied (typicalvalues).

C(pF)

1000

F=1MHz
Tj=25°C

500

200

VR(V)

100

12 51020 50

Fig. 8:

Thermal resistance junction to ambient
versus copper surface under tab (Epoxy printed
circuitboard,copper thickness:35µm).

Rth(j-a) (°C/W)

80
70
60
50
40
30
20
10

0

0 2 4 6 8 10 12 14 16 18 20

S(Cu)

(cm )

4/7

PACKAGEMECHANICAL DATA

2

D

PAK(Plastic)

L2

E

L

L3

B2
B

G

* FLATZONE NO LESSTHAN 2mm

C2

A1

STPS745D/F/G

DIMENSIONS

REF.

A

A 4.40 4.60 0.173 0.181

A1 2.49 2.69 0.098 0.106

D

A2 0.03 0.23 0.001 0.009

B 0.70 0.93 0.027 0.037

B2 1.14 1.70 0.045 0.067

C 0.45 0.60 0.017 0.024

C

R

C2 1.23 1.36 0.048 0.054

D 8.95 9.35 0.352 0.368

E 10.00 10.40 0.393 0.409

A2

G 4.88 5.28 0.192 0.208

L 15.00 15.85 0.590 0.624

M

*

V2

L2 1.27 1.40 0.050 0.055
L3 1.40 1.75 0.055 0.069

M 2.40 3.20 0.094 0.126
R 0.40typ. 0.016typ.

V2 0° 8° 0° 8°

Millimeters Inches

Min. Max. Min. Max.

FOOTPRINT DIMENSIONS (in millimeters)

16.90

10.30

1.30

8.90

3.70

5.08

5/7

STPS745D/F/G

PACKAGEMECHANICAL DATA

TO-220AC

H2

L5

ØI

L6

L2

L9

F1

L4

F

G

DIMENSIONS

REF.

Millimeters Inches

Min. Max. Min. Max.

A

C

L7

A 4.40 4.60 0.173 0.181
C 1.23 1.32 0.048 0.051
D 2.40 2.72 0.094 0.107
E 0.49 0.70 0.019 0.027
F 0.61 0.88 0.024 0.034

F1 1.14 1.70 0.044 0.066

D

G 4.95 5.15 0.194 0.202

H2 10.00 10.40 0.393 0.409

L2 16.40typ. 0.645typ.

M

E

L4 13.00 14.00 0.511 0.551
L5 2.65 2.95 0.104 0.116
L6 15.25 15.75 0.600 0.620
L7 6.20 6.60 0.244 0.259
L9 3.50 3.93 0.137 0.154

M 2.6 typ. 0.102typ.

Diam.I 3.75 3.85 0.147 0.151

6/7

PACKAGEMECHANICAL DATA

ISOWATT220AC

STPS745D/F/G

H

A

B

REF.

Millimeters Inches

DIMENSIONS

Min. Typ. Max. Min. Typ. Max.

A 4.40 4.60 0.173 0.181

Diam

L6

L2

L3

L7

B 2.50 2.70 0.098 0.106

D 2.40 2.75 0.094 0.108

E 0.40 0.70 0.016 0.028
F 0.75 1.00 0.030 0.039

F1 1.15 1.70 0.045 0.067

F1

G 4.95 5.20 0.195 0.205

H 10.00 10.40 0.394 0.409
L2 16.00 0.630
L3 28.60 30.60 1.125 1.205

F

G

DE

L6 15.90 16.40 0.626 0.646
L7 9.00 9.30 0.354 0.366

Diam 3.00 3.20 0.118 0.126

Type Marking Package Weight Baseqty Delivery mode

STPS745D STPS745D TO-220AC 1.86g. 50 Tube

STPS745F STPS745F ISOWATT220AC 2 g. 50 Tube

2

STPS745G STPS745G D

STPS745G-TR STPS745G D

PAK 1.48g. 50 Tube

2

PAK 1.48g. 1000 Tape & reel

Coolingmethod:by conduction(C)
Recommendedtorquevalue:0.55 N.m
Maximumtorquevalue:0.7 N.m.
Epoxymeets UL94,V0

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