Datasheet STPS1545 Datasheet (ST)

Main product characteristics

I

F(AV)

V

RRM

T

(max) 175° C

j

(max) 0.57 V

V

F

15 A

45 V

Features and Benefits

■ Very small conduction losses

■ Negligible switching losses

■ Extremely fast switching

■ Insulated package: TO-220FPAC

insulating voltage = 2000V DC
capacitance = 12 pF

■ Avalanche capability specified

Description

STPS1545

Power Schottky rectifier

A

K

TO-220AC

STPS1545D

2

I

PAK

STPS1545R

A

K

A

TO-220FPAC

STPS1545FP

K

2

D

STPS1545G

A

K

A

NC

PA K

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

Packaged in TO-220AC, TO-220FPAC, I

2

D

PAK, this device is intended for use in low

2

PA K or

voltage, high frequency inverters, free wheeling
and polarity protection applications.

March 2007 Rev 6 1/10

www.st.com

10

Characteristics STPS1545

d

-

1 Characteristics

Table 1. Absolute Ratings (limiting values)

Symbol Parameter Value Unit

V

I

F(RMS)

I

F(AV)

Repetitive peak reverse voltage 45 V

RRM

RMS forward voltage 30 A

Average forward current

TO-220AC

2

I

PA K, D2PA K

T

= 155° C

c

δ = 0.5

15 A

TO-220FPAC Tc = 130° C

I

I

I

P

T

Surge non repetitive forward current

FSM

Peak repetitive reverse current

RRM

Non repetitive peak reverse current tp = 100 µs square 3 A

RSM

Repetitive peak avalanche power tp = 1 µs Tj = 25°C 6000 W

ARM

Storage temperature range -65 to + 175 °C

stg

T

Maximum operating junction temperature

j

p

Sinusoidal

t

= 2 µs square

p

F = 1 kHz

(1)

220 A

1A

175 °C

= 10 ms

t

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

Ptot

--------------

1. thermal runaway condition for a diode on its own heatsink

dTj

Table 2. Thermal resistances

1

--------------------------

<

Rth j a–()

Symbol Parameter Value Unit

2

PAK,

1.6

R

th(j-c)

Junction to case

TO-220AC, I
D2PA K

TO-220FPAC 4.0

Table 3. Static electrical characteristics (per diode)

°C/W

Symbol Parameter Test Conditions Min. Typ. Max. Unit

T

= 25°C

(1)

I

V

1. Pulse test: tp = 380 µs, δ < 2%

Reverse leakage current

R

(1)

Forward voltage drop

F

j

T

= 125°C 11 40 mA

j

T

= 125°C IF = 15 A 0.5 0.57

j

= 25°C IF = 30 A 0.84

j

T

= 125°C IF = 30 A 0.65 0.72

j

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

2/10

F(AV)

+ 0.01 I

F2(RMS)

= V

V

R

RRM

V T

200 µA

STPS1545 Characteristics

Figure 1. Average forward power dissipation

versus average forward current

P (W)

F(AV)

12

10

8

6

4

2

0

0 2 4 6 8 1012141618

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, I

2

PAK D2PAK)

Figure 2. Average forward current versus

ambient temperature (

I (A)

F(AV)

18

R=R

16

14

12

10

8

6

4

2

=tp/T

δ

0

0 25 50 75 100 125 150 175

R =15°C/W

th(j-a)

T

tp

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

T (°C)

amb

δ = 0.5)

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

200

180

160

140

120

100

80

60

IM

40

20

0

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

δ=0.5

t

t(s)

T =75°C

T =100°C

C

T =125°C

C

I (A)

M

120

100

80

C

60

40

IM

20

0

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

δ=0.5

t

t(s)

3/10

T =75°C

C

T =100°C

C

T =125°C

C

Characteristics STPS1545

Figure 7. Relative variation of thermal

impedance junction to case versus
pulse duration
(TO-220AC, I

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

Single pulse

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

2

PAK D2PAK)

t (s)

p

δ

T

=tp/T

Figure 9. Reverse leakage current versus

reverse voltage applied
(typical values)

I (µA)

R

5E+4

1E+4

1E+3

1E+2

T =150°C

j

T =125°C

j

T =100°C

j

T =75°C

j

T =50°C

j

Figure 8. Relative variation of thermal

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. Junction capacitance versus

reverse voltage applied
(typical values)

C(pF)

2000

1000

500

δ

=tp/T

T

F=1MHz

V =30mV

OSC RMS

T =25°C

j

tp

1E+1

1E+0

0 5 10 15 20 25 30 35 40 45

T =25°C

j

V (V)

R

Figure 11. Forward voltage drop versus

forward current (maximum values)

I (A)

FM

100.0

10.0

1.0

0.1

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

T =125°C

j

(typical values)

T =125°C

j

V (V)

FM

T =25°C

j

200

V (V)

100

12 51020 50

R

Figure 12. Thermal resistance junction to

ambient versus copper surface
under tab (Epoxy printed circuit
board FR4, Cu=35 µm) (D

R (°C/W)

th(j-a)

80

70

60

50

40

30

20

10

0

0 5 10 15 20 25 30 35 40

S(Cu)(cm²)

2

PAK)

4/10

STPS1545 Package Information

2 Package Information

● Epoxy meets UL94, V0

● Cooling method: by conduction (C)

● Recommended torque value: 0.55 Nm

● Maximum torque value: 0.7 Nm

Table 4. 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

E 0.45 0.70 0.018 0.027

Dia

L6

L2

L3

L5

F1

L4

D

L7

F 0.75 1 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 2.4 2.7 0.094 0.106

H 10 10.4 0.393 0.409

L2 16 Typ. 0.63 Typ.

G1

F

E

L3 28.6 30.6 1.126 1.205

L4 9.8 10.6 0.386 0.417

G

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

5/10

Package Information STPS1545

Table 5. I2PAK dimensions

Dimensions

L2

Ref

Millimeters Inches

Min. Max. Min. Max.

A

E

c2

A 4.40 4.60 0.173 0.181

A1 2.49 2.69 0.098 0.106

b 0.70 0.93 0.028 0.037

b1 1.14 1.17 0.044 0.046

D

b2 1.14 1.17 0.044 0.046

c 0.45 0.60 0.018 0.024

L1

L

b1

A1

c2 1.23 1.36 0.048 0.054

D 8.95 9.35 0.352 0.368

e 2.40 2.70 0.094 0.106

E 10.0 10.4 0.394 0.409

b

e

e1

c

L 13.1 13.6 0.516 0.535

L1 3.48 3.78 0.137 0.149

L2 1.27 1.40 0.050 0.055

6/10

STPS1545 Package Information

m

D

Table 6. D2PAK Package dimensions

Dimensions

Ref

Millimeters Inches

Min. Max. Min. Max.

A

L2

E

C2

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

B 0.70 0.93 0.027 0.037

L

L3

G

A1

B2

B

C

R

A2

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

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

M

*

V2

* FLAT ZONE NO LESS THAN 2m

L 15.00 15.85 0.590 0.624

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 0.40 typ. 0.016 typ.

Figure 13. Footprint (dimensions in millimeters)

16.90

10.30

8.90

3.70

5.08

1.30

7/10

Package Information STPS1545

Table 7. TO-220AC dimensions

Dimensions

L2

F1

Ref

Millimeters Inches

Min. Max. Min. Max.

A 4.40 4.60 0.173 0.181

H2

Ø I

L5

L6

A

C

C

D 2.40 2.72 0.094 0.107

E 0.49 0.70 0.019 0.027

L7

F 0.61 0.88 0.024 0.034

F1 1.14 1.70 0.044 0.066

1.23 1.32 0.048 0.051

F2 1.14 1.70 0.044 0.066

G 4.95 5.15 0.194 0.202

L9

L4

F

G

D

G1 2.40 2.70 0.094 0.106

H2 10 10.40 0.393 0.409

L2 16.4 typ. 0.645 typ.

M

L4 13 14 0.511 0.551

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.

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.

8/10

Diam. 3.75 3.85 0.147 0.151

STPS1545 Ordering Information

3 Ordering Information

Ordering type Marking Package Weight Base qty

Delivery

mode

STPS1545D STPS1545D TO-220AC 1.86 g 50 Tube

STPS1545FP STPS1545FP TO-220FPAC 1.9 g 50 Tube

2

I

STPS1545R STPS1545R

STPS1545G STPS1545G D

STPS1545G-TR STPS1545G D

PAK 1.7 g 50 Tube

2

PA K 1.48 g 50 Tube

2

PA K 1.48 g 1000 Tape & Reel

4 Revision history

Date Revision Description of Changes

Jul-2003 5F Last release.

21-Mar-2007 6 Removed ISOWATT package.

9/10

STPS1545

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