Datasheet STPS1045 Datasheet (ST)

STPS1045

Power Schottky rectifier

Main product characteristics

I

F(AV)

V

RRM

V

F

10 A

45 V

0.57 V

Features and Benefits

■ Very small conduction losses

■ Negligible switching losses

■ Extremely fast switching

■ Low forward voltage drop

■ Insulated package: TO-220FPAC

Insulating voltage = 2000V DC
Capacitance = 12 pF

■ Avalanche capability specified

Description

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

K

TO-220AC

STPS1045D

AK

A

TO-220FPAC

STPS1045FP

A

K

This device is intended for use in low voltage, high
frequency inverters, free wheeling and polarity
protection applications.

March 2007 Rev 6 1/8

www.st.com

8

Characteristics STPS1045

1 Characteristics

Table 1. Absolute Ratings (limiting values)

Symbol Parameter Value Unit

V

RRM

I

F(RMS)

I

F(AV)

I

FSM

P

ARM

T

T

Repetitive peak reverse voltage 45 V

RMS forward voltage 30 A

Average forward

TO-220AC Tc = 150° C

current
δ = 0.5

TO-220FPAC T

Surge non repetitive forward current

Repetitive peak reverse current

Repetitive peak avalanche power

Storage temperature range -65 to + 175 °C

stg

Maximum junction temperature 175 °C

j

= 145° C

c

= 10 ms

t

p

sinusoidal

t

= 2 µs

p

F = 1 kHz

= 1 µs Tj = 25°

t

p

C

10 A

180 A

1A

4000 W

dV/dt Critical rate of rise of reverse voltage 10000 V/µs

Table 2. Thermal resistances

Symbol Parameter Value Unit

TO-220AC 2.2

R

Table 3. Static electrical characteristics

th(j-c)

Junction to case

TO-220FPAC 4.5

°C/W

Symbol Parameter Test Conditions Min. Typ. Max. Unit

T

= 25° C

(1)

I

V

1. Pulse test: tp = 5 ms, δ < 2%

2. Pulse test: tp = 380 µs, δ < 2%

Reverse leakage current

R

(2)

Forward voltage drop

F

j

= 125° C 15 mA

T

j

T

= 25° C IF = 20 A 0.84

j

= 125° C IF = 20 A 0.72

j

= 125° C IF = 10 A 0.60

T

j

To evaluate the conduction losses use the following equation:
P = 0.42 x I

2/8

F(AV)

+ 0.015 I

F2(RMS)

= V

V

R

RRM

VT

100 µA

STPS1045 Characteristics

Figure 1. Average forward power dissipation

versus average forward current

P (W)

F(AV)

8

7

6

5

4

3

2

1

0

0123456789101112

δ = 0.05

δ = 0.1

δ = 0.2

I (A)

F(AV)

δ = 0.5

δ

=tp/T

δ = 1

T

tp

Figure 3. Normalized avalanche power

derating versus pulse duration

P(t)

ARM p

P (1µs)

ARM

1

0.1

0.01

t (µs)

0.001

0.10.01 1

p

10 100 1000

Figure 5. Non repetitive surge peak forward

current versus overload duration
(maximum values) (TO-220AC)

Figure 2. Average forward current versus

ambient temperature (δ = 0.5)

I (A)

F(AV)

12

10

8

6

4

2

0

0 25 50 75 100 125 150 175

δ

=tp/T

T

tp

R=R

R =15°C/W

th(j-a)

T (°C)

amb

th(j-a) th(j-c)

TO-220AC

TO-220FPAC

Figure 4. Normalized avalanche power

derating versus junction
temperature

P(t)

ARM p

P (25°C)

ARM

1.2

1

0.8

0.6

0.4

0.2

0

25 50 75 100 125 150

T (°C)

j

Figure 6. Non repetitive surge peak forward

current versus overload duration
(maximum values) (TO-220FPAC)

I (A)

M

160

140

120

100

80

60

40

IM

20

0

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

δ=0.5

t

t(s)

T =50°C

T =100°C

C

T =150°C

C

I (A)

M

100

90

80

70

60

C

50

40

30

IM

20

10

0

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

δ=0.5

t

t(s)

3/8

T =50°C

C

T =100°C

C

T =150°C

C

Characteristics STPS1045

Figure 7. Relative variation of thermal

transient impedance junction to
case versus pulse duration
(TO-220AC)

Z/R

th(j-c) th(j-c)

1.0

0.8

0.6

δ = 0.5

0.4

δ = 0.2

δ = 0.1

0.2

t (s)

Single pulse

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

p

δ

T

=tp/T

Figure 9. Reverse leakage current versus

reverse voltage applied (typical
values)

I (µA)

R

1E+5

T =150°C

1E+4

1E+3

1E+2

1E+1

1E+0

1E-1

0 5 10 15 20 25 30 35 40 45

j

T =125°C

j

T =100°C

j

T =75°C

j

T =50°C

j

T =25°C

j

V (V)

R

Figure 11. Forward voltage drop versus

forward current (maximum values)

I (A)

FM

100.0

T =125°C

j

(typical values)

Figure 8. Relative variation of thermal

transient impedance junction to
case versus pulse duration
(TO-220FPAC)

Z/R

th(j-c) th(j-c)

1.0

0.8

δ = 0.5

0.6

0.4

δ = 0.2

δ = 0.1

0.2

t (s)

tp

Single pulse

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

p

Figure 10. Reverse leakage current versus

reverse voltage applied (typical
values)

C(pF)

1000

500

200

V (V)

100

12 51020 50

R

δ

=tp/T

T

F=1MHz

V =30mV

OSC RMS

T =25°C

j

tp

T =25°C

10.0

T =125°C

j

1.0

V (V)

0.1

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

FM

j

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STPS1045 Package Information

2 Package Information

● Epoxy meets UL94, V0

● Cooling method: by conduction (C)

● Recommended torque value: 0.55 Nm

● Maximum torque value: 0.70 Nm

Figure 12. TO-220AC dimensions

Dimensions

L2

F1

Ref

Millimeters Inches

Min. Max. Min. Max.

H2

Ø I

L5

A

C

L7

L6

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

G 4.95 5.15 0.194 0.202

L9

L4

F

G

D

H2 10.00 10.40 0.393 0.409

L2 16.40 typ. 0.645 typ.

L4 13.00 14.00 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. I 3.75 3.85 0.147 0.151

5/8

Package Information STPS1045

Figure 13. TO-220FPAC dimensions

Dimensions

Ref

Millimeters Inches

Min. Max. Min. Max.

A 4.4 4.6 0.173 0.181

A

H

B

B 2.5 2.7 0.098 0.106

D 2.5 2.75 0.098 0.108

Dia

L6

L2

L3

L5

F1

L4

F

G1

G

D

L7

E

E 0.45 0.70 0.018 0.027

F 0.75 1 0.030 0.039

F1 1.15 1.70 0.045 0.067

G 4.95 5.20 0.195 0.205

G1 2.4 2.7 0.094 0.106

H 10 10.4 0.393 0.409

L2

16 Typ. 0.63 Typ.

L3 28.6 30.6 1.126 1.205

L4 9.8 10.6 0.386 0.417

L5 2.9 3.6 0.114 0.142

L6 15.9 16.4 0.626 0.646

L7 9.00 9.30 0.354 0.366

Dia. 3.00 3.20 0.118 0.126

In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect. The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.

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STPS1045 Ordering Information

3 Ordering Information

Ordering type Marking Package Weight Base qty

STPS1045D STPS1045D TO-220AC 1.86 g 50 Tube

STPS1045FP STPS1045FP TO-220FPAC 1.9 g 50 Tube

Delivery

mode

4 Revision history

Date Revision Description of Changes

Jul-2003 5D Last release.

22-Mar-2007 6 Removed ISOWATT package.

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STPS1045

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