Datasheet STPS40L40CW, STPS40L40CT Datasheet (SGS Thomson Microelectronics)

®

STPS40L40CT/CW

LOW DROP POWER SCHOTTK Y RECTIFIER

MAIN PRODUCTS CHARACTE RISTICS

I

F(AV)

V

RRM

2 x 20 A

40 V

Tj (max) 150 °C

V

(max) 0.49 V

F

FEATURES AND BENE FITS

LOW FO RWARD VOL TAGE DR OP MEANI NG
VERY SMALL CONDUCTION LOSS ES

LOW DYNAMIC LOSSES AS A RESULT OF
THE SCHOTTKY BARRIER

AVALANCHE RATED

DESCRIPTION

Dual center tap Schottky barrier rectifier designed
for high frequency Switched Mode Power Supplies
and DC to DC c onverters.

Packaged in TO-220AB and TO-247 this device is
intended for use in low voltage, high frequency
inverters, free-wheeling and polarity protection
applications.

A1

A2

A1

TO-220AB

STPS40L40CT

K

A2

K

A2

K

A1

TO-247

STPS40L40CW

ABSOLUTE RATINGS (limiting values, per diode)

Symbol Parameter Value Unit

V

RRM

I

F(RMS)

I

F(AV)

I

FSM

I

RRM

I

RSM

T

stg

Tj

dV/dt

dPtot

* :

dTj

July 1999 - Ed: 6A

Repetitive peak reverse voltage
RMS forward current
Average forward current Tc = 130°C

Surge non repetitive forward current tp = 10 ms Sinusoidal
Repetitive peak reverse current tp = 2 µs square F = 1kHz
Non repetitive peak reverse current tp = 100 µs square
Storage temperature range
Maximum operating junction temperature *
Critical rate of rise of r ever se voltage

<

Rth(j

Per diode

δ = 0.5

1

thermal runaway condition for a diode on its own heatsink

a

−

)

Per device

40 V
30 A
20

40

230 A

2A
3A

- 65 to + 150 °C
150 °C

10000 V/µs

A

1/5

STPS40L40CT/CW

THERMA L RE SISTA NC ES

Symbol Parameter Value Unit

R

R

th (j-c)

th(c)

Junction to case

Per diode

Total

Coupling

1.5

°C/W

0.8

0.1 °C/W

When the diodes 1 and 2 are used simultaneously :
∆ Tj(diode 1) = P(diode1) x R

(Per diode) + P(diode 2) x R

th(j-c)

th(c)

STATIC ELECTRICAL CHARACTE RISTICS (per diode)

Symbol Parameter Tests Conditions Min. Typ. Max. Unit

*

I

R

V

F

Reverse leakage
current

*

Forward voltage
drop

Tj = 25°CV

= V

R

RRM

Tj = 100°C
Tj = 25°CI
Tj = 125°CI
Tj = 25°CI
Tj = 125°CI

= 20 A

F

= 20 A

F

= 40 A

F

= 40 A

F

30 70 mA

0.42 0.49

0.6 0.7

0.8 mA

0.53 V

0.69

Pulse test : * tp = 380 µs, δ < 2%

To evaluate the conduction losses use the following equation :
P = 0.28 x I

F(AV)

+ 0.0105 I

F2(RMS)

Fig. 1: Average forward power dis sipation versus
average forward current (per diode).

PF(av)(W)

16
14
12
10

8
6
4
2
0

024681012141618202224

2/5

δ = 0.05

δ = 0.1

δ = 0.2

IF(av) (A)

δ = 0.5

δ

=tp/T

δ = 1

T

tp

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

IF(av)(A)

22
20
18
16
14
12
10

8
6
4
2
0

0 25 50 75 100 125 150

δ

=tp/T

T

tp

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

Rth(j-a)=15°C/W

Tamb(°C)

STPS40L40CT/CW

Fig. 3: Non repetitive surge peak forward current

vers us overloa d duration ( maximum values, pe r diode).

IM(A)

250
225
200
175
150
125
100

75

I

M

50
25

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

t

δ

=0.5

t(s)

Tc=25°C

Tc=75°C

Tc=125°C

Fig. 5: Reverse leakage current versus reverse
voltage applied (typical values, per diode).

IR(mA)

5E+2
1E+2

Tj=150°C

Tj=125°C

Fig. 4: Relative variation of thermal impedance
junction to case versus pulse duration.

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

0.0

Single pulse

tp(s)

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

δ

=tp/T

T

tp

Fig. 6: Junction capacitance versus reverse
voltage applied (typical values, per diode).

C(nF)

5.0

F=1MHz
Tj=25°C

1E+1

Tj=75°C

1E+0

1E-1

1E-2

0 5 10 15 20 25 30 35 40

Tj=25°C

VR(V)

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

IFM(A)

200
100

Typical values

Tj=150°C

Tj=125°C

10

1

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Tj=75°C

Tj=25°C

VFM(V)

1.0

0.1
12 51020 50

VR(V)

3/5

STPS40L40CT/CW

PACKAGE MECHANICAL DAT A

TO-220AB

H2

Dia

L5

L6

L2

F2

F1

F

G1

G

L9

L4

DIMENSIONS

REF.

A

C

A 4.40 4.60 0.173 0.181

Millimeters Inches

Min. Max. M in. Max.

C 1.23 1.32 0.048 0.051

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

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 16.4 typ. 0.645 typ.
L4 13 14 0.511 0.551

M

E

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. 0.102 typ.

Diam. 3.75 3.85 0.147 0.151

Cooling method : C
Recommended torque value : 0.55m.N
Maximum torque value : 0.70 m.N

4/5

PACKAGE MECHANICAL DAT A

TO-247

V

V

H

L5

L

F2

F4

L1

F3

L3

F1

V2

F(x3)

G

= =

Dia.

L4L2

D

ME

A

STPS40L40CT/CW

DIMENSIONS

REF.

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

Millimeters Inches

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

Cooling method : C
Recommended torque value : 0.8m.N
Maximum torque value : 1.0m.N

Ordering type Marking Package Weight Base qty Delivery mode

STPS40L40CT STPS40L40CT TO-220AB 2g 50 Tube

STPS40L40CW STPS40L40CW TO-247 4.4g 30 Tube

Epoxy meets UL94,V0

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