Datasheet STPS1545CG, STPS1545CT, STPS1545CF Datasheet (SGS Thomson Microelectronics)

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MAINPRODUCTCHARACTERISTICS

STPS1545CT/CF/CG

POWER SCHOTTKY RECTIFIER

I

F(AV)

V

RRM

2 x 7.5 A

45 V

Tj (max) 175 °C

(max) 0.57V

V

F

FEATURESAND BENEFITS

VERYSMALLCONDUCTION LOSSES
NEGLIGIBLESWITCHINGLOSSES
EXTREMELYFAST SWITCHING
INSULATEDPACKAGE:ISOWATT220AB

Insulatingvoltage= 2000VDC
Capacitance= 12pF

DESCRIPTION

DualcentertapSchottkyrectifiersuited forSwitch­ModePowerSupplyandhighfrequencyDC to DC
converters.

Packaged either in TO-220AB, ISOWATT220AB

2

PAK, this device is especially intended for

or D
use in low voltage, high frequency inverters, free
wheelingand polarityprotectionapplications.

ABSOLUTE RATINGS(limitingvalues, per diode)

K

TO-220AB

STPS1545CT

A1

A2

K

A1

K

D

STPS1545CG

A2

ISOWATT220AB

STPS1545CF

A2

A1

2

PAK

K

A2

K

A1

Symbol Parameter Value Unit

V

RRM

I

F(RMS)

I

F(AV)

Repetitivepeak reversevoltage 45 V
RMSforward current 20 A
Averageforwardcurrent

δ =0.5

TO-220AB/

2

D

PAK

Tc = 157°C Per diode 7.5 A

ISOWATT220AB Tc = 130°C Per device 15

I

FSM

Surgenon repetitive forwardcurrent tp = 10 ms

150 A

Sinusoidal

I

RRM

Repetitivepeak reversecurrent tp = 2µs square

1A

F = 1kHz

I

RSM

Nonrepetitivepeak reversecurrent

tp = 100µs square

2A

Tstg Storagetemperaturerange -65 to +175 °C

Tj Maximumoperatingjunction temperature* 175 °C

dV/dt Criticalrateof rise of reversevoltage 10000 V/µs

<

1

Rth(j−a

thermal runawayconditionfor a diode on its own heatsink

)

dPtot

*:

dTj

June 1999 - Ed: 4B

1/7

STPS1545CT/CF/CG

THERMALRESISTANCES

Symbol Parameter Value Unit

R

R

th (j-c)

th (c)

Junctionto case TO-220AB/ D2PAK Per diode

Total

ISOWATT220AB Per diode

Total

TO-220AB/ D2PAK Coupling 0.35

3.0

1.7

5.5

4.2

ISOWATT220AB 2.9

Whenthe diodes1 and 2 are used simultaneously:
∆ Tj (diode1) = P (diode1)x R

STATICELECTRICALCHARACTERISTICS

(perdiode) + P (diode2) x R

th(j-c)

(Perdiode)

th(c)

Symbol Parameter Tests Conditions Min. Typ. Max. Unit

I

* Reverseleakage current Tj = 25°CV

R

R=VRRM

100

Tj = 125°C 5 15 mA

* Forwardvoltage drop Tj = 125°CI

V

F

Tj = 25°CI
Tj = 125°CI

= 7.5A 0.5 0.57 V

F

= 15A 0.84

F

= 15A 0.65 0.72

F

°

C/W

µ

A

Pulse test: * tp = 380µs, δ<2%

Toevaluate the conductionlossesusethe followingequation :
P = 0.42x I

F(AV)

+0.020I

F2(RMS)

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STPS1545CT/CF/CG

Fig. 1:

Average forward power dissipation versus

averageforwardcurrent(per diode).

PF(av)(W)

6
5

δ = 0.05

4
3
2
1
0

012345678910

Fig.3-1:

Nonrepetitivesurgepeak forwardcurrent
versus overload duration (maximum values, per
diode)(TO-220ABandD

IM(A)

120
100

80
60
40

IM

20

0

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

δ=0.5

t

δ = 0.2δ = 0.1

IF(av)(A)

2

PAK).

t(s)

δ= 0.5

δ

=tp/T

δ =1

T

tp

Tc=50°C

Tc=100°C

Tc=150°C

Fig. 2:

Average current versus ambient

temperature (δ= 0.5, per diod e).

IF(av)(A)

9
8
7
6
5

Rth(j-a)=40°C/W

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

ISOWATT220AC

Rth(j-a)=15°C/W

TO-220AC

D PAK

4
3
2
1
0

0 25 50 75 100 125 150 175

Fig.3-2:

T

δ

=tp/T

tp

Tamb(°C)

Nonrepetitivesurgepeak forwardcurrent
versus overload duration (maximum values, per
diode)(ISOWATT220AB).

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 case versus pulse duration
(perdiode) (TO-220ABand 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 = 0.2

δ = 0.1

0.2

Single pulse

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

tp(s)

δ

=tp/T

T

tp

Fig. 4-2:

Relative variation of thermal transient
impedancejunction to case versus pulse duration
(per diode)(ISOWATT220AB).

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

1.0

0.8

δ = 0.5

0.6

0.4

δ = 0.2

0.2

δ = 0.1

0.0

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

Single pulse

tp(s)

T

=tp/T tp

δ

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STPS1545CT/CF/CG

Fig. 5:

Reverse leakage current versus reverse

voltageapplied(typical values,per diode).

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

1E-1

0 5 10 15 20 25 30 35 40 45

Fig. 7:

Forward voltage drop versus forward

VR(V)

current(maximum values,perdiode).

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,per diode).

C(pF)

1000

F=1MHz
Tj=25°C

500

200

100

12 51020 50

Fig. 8:

Thermal resistance junction to ambient

VR(V)

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

02468101214161820

S(Cu)

(cm )

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PACKAGEMECHANICAL DATA

2

D

PAK

E

L2

L

L3

B2

B

G

* FLATZONE NO LESSTHAN 2mm

C2

A1

STPS1545CT/CF/CG

DIMENSIONS

REF.

A

A 4.40 4.60 0.173 0.181
A1 2.49 2.69 0.098 0.106
A2 0.03 0.23 0.001 0.009

D

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
C2 1.23 1.36 0.048 0.054

C

R

D 8.95 9.35 0.352 0.368

E 10.00 10.40 0.393 0.409

G 4.88 5.28 0.192 0.208

A2

L 15.00 15.85 0.590 0.624

L2 1.27 1.40 0.050 0.055

M

*

V2

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

16.90

10.30

8.90

(in millimeters)

5.08

1.30

3.70

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STPS1545CT/CF/CG

PACKAGEMECHANICAL DATA

TO-220AB

H2

Dia

L5

L6

L2

F2
F1

F

G1

G

L9

L4

DIMENSIONS

REF.

Millimeters Inches

Min. Max. Min. Max.

A 4.40 4.60 0.173 0.181
C 1.23 1.32 0.048 0.051

A

C

L7

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
F2 1.14 1.70 0.044 0.066

G 4.95 5.15 0.194 0.202

D

G1 2.40 2.70 0.094 0.106

H2 10 10.40 0.393 0.409

L2 16.4typ. 0.645typ.

M

E

L4 13 14 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. 3.75 3.85 0.147 0.151

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PACKAGE MECHANICAL DATA

ISOWATT220AB

STPS1545CT/CF/CG

DIMENSIONS

REF.

A 4.40 4.60 0.173 0.181
B 2.50 2.70 0.098 0.106
D 2.50 2.75 0.098 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
F2 1.15 1.70 0.045 0.067

G 4.95 5.20 0.195 0.205

G1 2.40 2.70 0.094 0.106

H 10.00 10.40 0.394 0.409

Millimeters Inches

Min. Max. Min. Max.

L2 16.00typ. 0.630 typ.
L3 28.60 30.60 1.125 1.205
L4 9.80 10.60 0.386 0.417
L6 15.90 16.40 0.626 0.646

Type Marking Package Weight Base qty Deliverymode

STPS1545CT STPS1545CT TO-220AB 2.23 g. 50 Tube
STPS1545CF STPS1545CF ISOWATT220AB 2.08 g. 50 Tube

STPS1545CG STPS1545CG D2PAK 1.48 g. 50 Tube

STPS1545CG-TR STPS1545CG D2PAK 1.48 g. 1000 Tape & reel

Coolingmethod:by conduction(C)
Expoxymeets UL94,V0

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