Datasheet STPS61L45C Datasheet (ST)

STPS61L45C

Power Schottky rectifier

Features

■ High current capability

■ Avalanche rated

■ Low forward voltage drop current

■ High frequency operation

Description

Dual center tap Schottky rectifier suited for high
frequency switch mode power supplies.

Packaged in TO-247 and TO-220AB, this device
provides desktop SMPS designers with a low
forward voltage drop device, and reduced leakage
current, with the objective of making the
application compliant with environmental care
standards, or suitable for 80+ requirements.

A1

A2

K

A2

K

A1

TO-220AB

STPS61L45CT

Table 1. Device summary

STPS61L45CW

Symbol Value

I

F(AV)

V

RRM

(max) 150 °C

T

j

(typ) 0.45 V

V

F

K

A2

K

A1

TO-247

2 x 30 A

45 V

July 2011 Doc ID 14192 Rev 2 1/8

www.st.com

8

Characteristics STPS61L45C

1 Characteristics

Table 2. Absolute ratings (limiting values per diode at 25 °C unless otherwise

specified)

Symbol Parameter Value Unit

V

RRM

I

F(RMS)

I

F(AV)

I

FSM

P

ARM

T

1. condition to avoid runaway for a diode on its own heatsink

Table 3. Thermal resistances

Repetitive peak reverse voltage 45 V

Forward rms current 60 A

Average forward current δ = 0.5

= 120 °C

c

Tc = 115 °C

Per diode
Per device

T

Surge non repetitive forward current tp = 10 ms sinusoidal 500 A

Repetitive peak avalanche power tp = 1 µs Tj = 25 °C 10000 W

Storage temperature range -65 to + 175 °C

stg

Maximum operating junction temperature

T

j

<

Rth(j-a)

1

dPtot

dTj

(1)

30
60

150 °C

Symbol Parameter Value Unit

R

R

th(j-c)

th(c)

Junction to case

Per diode
To t al

Coupling 0.2 °C/W

1.3

0.75

°C/W

When the diodes 1 and 2 are used simultaneously :

ΔTj(diode 1) = P(diode1) x R

Table 4. Static electrical characteristics (per diode)

Symbol Parameter Test conditions Min. Typ. Max. Unit

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

th(j-c)

th(c)

.

A

T

= 25 °C

(1)

I

Reverse leakage current

R

j

= 125 °C 190 400

T

j

T

= 25 °C

j

Tj = 125 °C 0.23

T

= 25 °C

(2)

V

1. Pulse test: tp = 5 ms, δ < 2%

2. Pulse test: tp = 380 µs, δ < 2%

Forward voltage drop

F

j

= 125 °C 0.34 0.40

T

j

= 25 °C

T

j

T

= 125 °C 0.45 0.51

j

To evaluate the conduction losses use the following equation:
P = 0.3 x I

2/8 Doc ID 14192 Rev 2

+ 0.007 x I

F(AV)

F2(RMS)

= V

V

R

RRM

= 5 A

I

F

IF = 15 A

= 30 A

I

F

1.5
mA

0.35

0.43 0.50
V

0.50 0.56

STPS61L45C Characteristics

0

Figure 1. Conduction losses versus average

forward current (per diode)

P (W)

F(av)

25

20

15

10

5

0

0 5 10 15 20 25 30 35 40

δ=0.05 δ=0.1 δ=0.2 δ=0.5 δ=1

I (A)

F(av)

δ

=tp/T

T

tp

Figure 3. Normalized avalanche power

derating versus pulse duration

P(tp)

ARM

P (1 µs)

ARM

1

0.1

0.01

t (µs)

.001

0.10.01 1

p

10 100 100

Figure 5. Non repetitive surge peak forward

current versus overload duration
(per diode)

Figure 2. Average forward current versus

ambient temperature (δ = 0.5),
(per diode)

I (A)

F(av)

35

R

30

25

20

15

10

5

0

T

tp

=tp/T

δ

0 25 50 75 100 125 150

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

T

amb

R

th(j-a)

(°C)

=10°C/W

Figure 4. Normalized avalanche power

derating versus junction
temperature

P(Tj)

ARM

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. Relative variation of thermal

impedance junction to case versus
pulse duration

I (A)

M

300

250

200

150

100

I

M

50

0

1.E-03 1.E-02 1.E-01 1.E+00

t

=0.5

δ

t(s)

TC=25°C

TC=75°C

TC=125°C

Doc ID 14192 Rev 2 3/8

Z/R

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

1.0

TO-247

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

Single pulse

0.1

0.0

1.E-03 1.E-02 1.E-01 1.E+00

t (s)

p

δ

=tp/T

T

tp

Characteristics STPS61L45C

Figure 7. Reverse leakage current versus

1.E+03

1.E+02

1.E+01

1.E+00

1.E-01

1.E-02

reverse voltage applied
(typical values, per diode)

I (mA)

R

Tj=150°C

Tj=125°C

Tj=100°C

Tj=75°C

Tj=50°C

Tj=25°C

V (V)

R

0 5 10 15 20 25 30 35 40 45

Figure 8. Junction capacitance versus

reverse voltage applied
(typical values, per diode)

C(nF)

10.00

1.00

0.10

1 10 100

Figure 9. Forward voltage drop versus forward current (per diode)

I (A)

FM

200

180

160

140

120

100

80

60

40

20

0

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4

Tj=125°C

Tj=125°C

(Typical values)

(Typical values)

Tj=125°C

Tj=125°C

(Maximum values)

(Maximum values)

Tj=25°C

(Maximum values)

V (V)

FM

V (V)

R

V

F=1MHz

OSC

Tj=25°C

=30mV

RMS

4/8 Doc ID 14192 Rev 2

STPS61L45C Package information

2 Package information

● Epoxy meets UL94, V0

● Cooling method: by conduction (C)

● Recommended torque values for: TO-220AB 0.4 to 0.6 N·m

● Recommended torque value for: TO-247 0.55 to 1.0 N·m

In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com
ECOPACK

Table 5. TO-220AB dimensions

®

packages, depending on their level of environmental compliance. ECOPACK®

®

is an ST trademark.

.

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

H2

Dia

A

C

D 2.40 2.72 0.094 0.107

E 0.49 0.70 0.019 0.027

L2

F2

F1

L5

L6

L9

L7

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

F

G1

L4

H2 10 10.40 0.393 0.409

L2 16.4 typ. 0.645 typ.

M

E

L4 13 14 0.511 0.551

L5 2.65 2.95 0.104 0.116

G

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

Doc ID 14192 Rev 2 5/8

Package information STPS61L45C

Table 6. TO-247 dimensions

Dimensions

L3

Ref.

Millimeters Inches

Min. Max. Min. Max.

A 4.85 5.16 0.191 0.203

D 2.20 2.60 0.086 0.102

V

V

Dia

E 0.40 0.80 0.015 0.031

F 1.00 1.40 0.039 0.055

F1 3.00 typ. 0.118 typ.

H

A

F2 2.00 typ. 0.079 typ.

F3 1.90 2.40 0.075 0.094

L5

F4 3.00 3.40 0.118 0.134

G 10.90 typ. 0.429 typ.

L

L2

L4

F2

F4

F3

L1

D

EM

F1

V2

F(x3)

G

H 15.45 16.03 0.608 0.631

L 19.85 21.09 0.781 0.830

L1 3.70 4.30 0.146 0.169

L2 18.30 19.13 0.720 0.753

L3 14.20 20.30 0.559 0.799

L4 34.05 41.38 1.341 1.629

L5 5.35 6.30 0.211 0.248

M 2.00 3.00 0.079 0.118

V 5° typ. 5° typ.

V2 60° typ. 60° typ.

Dia. 3.55 3.65 0.140 0.144

6/8 Doc ID 14192 Rev 2

STPS61L45C Ordering information

3 Ordering information

Table 7. Ordering information

Order code Marking Package Weight Base qty Delivery mode

STPS61L45CW STPS61L45CW TO-247 4.4 g 30 Tube

STPS61L45CT STPS61L45CT TO-220AB 2.2 g 50 Tube

4 Revision history

Table 8. Document revision history

Date Revision Changes

14-Nov-2007 1 Initial release.

15-Jul-2011 2

Reformatted to current standards. Updated package
illustration for TO-247.

Doc ID 14192 Rev 2 7/8

STPS61L45C

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8/8 Doc ID 14192 Rev 2