Datasheet STPS20L40CW, STPS20L40CT, STPS20L40CF Datasheet (SGS Thomson Microelectronics)



LOW DROP POWER SCHOTTKY RECTIFIER

MAJORPRODUCTS CHARACTERISTICS

STPS20L40CF/CW/CT

I

F(AV)

V

RRM

2 x 10A

40 V

Tj (max) 150°C

(max) 0.5 V

V

F

FEATURESAND BENEFITS

LOW FORWARD VOLTAGE DROP MEANING
VERYSMALLCONDUCTIONLOSSES

LOW DYNAMIC LOSSES AS A RESULT OF
THESCHOTTKYBARRIER

AVALANCHERATED

DESCRIPTION

Dual center tap Schottky rectifiers designed for
highfrequencyswitchedmodepower suppliesand
DC to DC converters.

Thesedevicesare intendedfor use in lowvoltage,
high frequency inverters, free-wheeling and
polarityprotectionapplications.

ABSOLUTE RATINGS(limiting values,per diode)

A1

K

A2

K

A1

ISOWATT220AB

STPS20L40CF

A2

A1

TO-220AB

STPS20L40CT

K

A1

TO-247

STPS20L40CW

K

A2

A2

Symbol Parameter Value Unit

V

RRM

I

F(RMS)

I

F(AV)

Repetitivepeak reversevoltage
RMSforward current
Averageforward

current

I

FSM

I

RRM

I

RSM

T

Tj

dV/dt

dPtot

*:

August 1999 - Ed: 3A

Surgenon repetitiveforward current tp= 10ms Sinusoidal
Peakrepetitive reversecurrent tp=2µs squareF=1kHz
Non repetitivepeak reversecurrent tp= 100µs square

stg

Storagetemperaturerange
Maximumoperatingjunction temperature*
Critical rate of riseof reversevoltage

1

<

dTj

Rth(j

TO-220AB
TO-247

ISOWATT220AB Tc= 115°C

thermal runawayconditionfor adiode on its own heatsink

a

)

−

Tc= 135°C

δ = 0.5

δ = 0.5

Per diode
Perdevice

Per diode
Perdevice

40 V
30 A
10

20
10

20

180 A

1A
2A

- 65 to +150 °C
150 °C

10000 V/µs

A

A

1/6

STPS20L40CF/CW/CT

THERMAL RESISTANCES

Symbol Parameter Value Unit

R

R

R

th(j-c)

th(j-c)

th(j-c)

Junctionto case ISOWATT220AB

Junctionto case TO-247

Junctionto case TO-220AB

Whenthe diodes1 and 2 are used simultaneously:

∆ Tj(diode1)= P(diode1)x R

(Per diode)+ P(diode2) x R

th(j-c)

Per diode

Total

Coupling

Per diode

Total

Coupling

Per diode

Total

Coupling

th(c)

4.5

3.5

2.5

2.2

1.20

0.3

2.2

1.3

0.3

°C/W

°C/W

°C/W

STATICELECTRICALCHARACTERISTICS

(per diode)

Symbol Parameter Tests Conditions Min. Typ. Max. Unit

I

R

VF*

*

Reverseleakage
current

Tj= 25°CV
Tj= 100°C

Forwardvoltagedrop Tj= 25°CI

Tj= 125°CI
Tj= 25°CI
Tj= 125°CI

R=VRRM

=10A

F

=10A

F

=20A

F

=20A

F

15 35 mA

0.44 0.5

0.62 0.72

0.7 mA

0.55 V

0.73

Pulsetest : *tp = 380 µs, δ <2%

To evaluatethe conductionlossesuse thefollowingequation:
P = 0.28x I

Fig. 1: Average forward power dissipation versus
averageforward current(perdiode).

F(AV)

+0.022 I

F2(RMS)

Fig. 2: Average forward current versus ambient
temperature(δ = 0.5, per diode).

PF(av)(W)

8
7
6
5
4
3
2
1
0

02468101214

2/6

δ= 0.05

δ = 0.1

δ = 0.2

IF(av) (A)

δ = 0.5

δ

δ =1

=tp/T

T

tp

IF(av)(A)

12
11
10

9
8
7
6
5
4
3
2
1
0

0 25 50 75 100 125 150

δ

=tp/T

T

tp

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

ISOWATT220AB

Rth(j-a)=15°C/W

Tamb(°C)

TO-220AB/TO-247

STPS20L40CF/CW/CT

Fig. 3-1: Non r epetitive surge peak forward

current versus overload duration (maximum
values, per diode,TO-220AB/ TO-247).

IM(A)

140
120
100

80
60
40

IM

20

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

Fig. 4-1:

δ=0.5

t

t(s)

Relativevariation of thermal impedance

Tc=25°C

Tc=75°C

Tc=125°C

junctionto caseversus pulse duration (TO-220AB
/ TO-247).

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

1.0

Fig. 3-1: Non repetitive surge peak forward
current versus overload duration (maximum
values,per diode,ISOWATT220AB ).

IM(A)

100

90
80
70
60
50
40
30

IM

20
10

0

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

δ=0.5

t

t(s)

Tc=25°C

Tc=50°C

Tc=100°C

Fig. 4-2: Relative variation of thermal impedance
junction to case versus pulse duration
(ISOWATT220AB).

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

1.0

0.8

δ = 0.5

0.6

δ = 0.2

0.4

δ = 0.1

0.2

Single pulse

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

Fig. 5:

Reverse leakage current versus reverse

tp(s)

δ

=tp/T

T

tp

voltageapplied (typical values,per diode).

IR(mA)

2E+2
1E+2

1E+1

1E+0

1E-1

1E-2
1E-3

0 5 10 15 20 25 30 35 40

Tj=150°C

Tj=125°C

Tj=75°C

Tj=25°C

VR(V)

0.8

δ = 0.5

0.6

0.4

δ = 0.2

δ = 0.1

0.2

Single pulse

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

Fig. 6:

Junction capacitance versus reverse

tp(s)

T

=tp/T tp

δ

voltageapplied (typicalvalues,per diode).

C(pF)

2000

F=1MHz

1000

100

12 51020 50

VR(V)

Tj=25°C

3/6

STPS20L40CF/CW/CT

Fig. 7: Forward voltage drop versus forward

current(maximumvalues) (per diode).

IFM(A)

100.0

Typicalvalues

Tj=150°C

10.0

Tj=125°C

Tj=25°C

1.0

0.1

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Tj=75°C

VFM(V)

PACKAGEMECHANICAL DATA

ISOWATT220AB

DIMENSIONS

REF.

Millimeters Inches

Min. Max. Min. Max.

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
L2 16.00typ. 0.630typ.
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
L7 9.00 9.30 0.354 0.366

Diam 3.00 3.20 0.118 0.126

Coolingmethod : C
Recommendedtorquevalue : 0.55 m.N
Maximumtorquevalue : 0.70 m.N

4/6

PACKAGEMECHANICALDATA

TO-220AB

REF.

STPS20L40CF/CW/CT

DIMENSIONS

Millimeters Inches

H2

Dia

L5

L6

L2

F2

F1

F

G1

G

L9

L4

Coolingmethod : C
Recommendedtorque value : 0.55m.N
Maximumtorque value : 0.70 m.N

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

Min. Max. Min. Max.

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

D

G 4.95 5.15 0.194 0.202
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

5/6

STPS20L40CF/CW/CT

PACKAGEMECHANICAL DATA

TO-247

V

V

H

L5

L

F2

F4

L1

F3

L3

F1

V2

F(x3)

G

==

Dia.

L4L2

D

ME

A

DIMENSIONS

REF.

Millimeters Inches

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

A 4.85 5.15 0.191 0.203
D 2.20 2.60 0.086 0.102
E 0.40 0.80 0.015 0.031

F 1.00 1.40 0.039 0.055
F1 3.00 0.118
F2 2.00 0.078
F3 2.00 2.40 0.078 0.094
F4 3.00 3.40 0.118 0.133

G 10.90 0.429
H 15.45 15.75 0.608 0.620

L 19.85 20.15 0.781 0.793
L1 3.70 4.30 0.145 0.169
L2 18.50 0.728
L3 14.20 14.80 0.559 0.582
L4 34.60 1.362
L5 5.50 0.216

M 2.00 3.00 0.078 0.118

V5° 5°

V2 60° 60°

Dia. 3.55 3.65 0.139 0.143

Coolingmethod : C
Recommendedtorque value : 0.8m.N
Maximumtorque value : 1.0m.N

Orderingtype Marking Package Weight Base qty

Delivery

mode

STPS20L40CF STPS20L40CF ISOWATT220AB 2.1g 50 Tube
STPS20L40CT STPS20L40CT TO-220AB 2g 50 Tube

STPS20L40CW STPS20L40CW TO-247 4.4g 30 Tube

EpoxymeetsUL94,V0

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