Datasheet STPS15L45C-Y Datasheet (ST)

Automotive low drop power Schottky rectifier

Features

■ Very small conduction losses

■ Negligible switching losses

■ Extremely fast switching

■ Low forward voltage drop

■ Avalanche capability specified

■ AEC-Q101 qualified

Description

Dual center tab Schottky rectifier suited for Switch
Mode Power Supply and high frequency DC to
DC converters.

Package in DPAK, this device is intended for use
in low voltage, high frequency inverters, free­wheeling and polarity protection for automotive
application.

STPS15L45C-Y

DPAK

STPS15L45CBY-TR

Table 1. Device summary

Symbol Value

I

F(AV)

V

RRM

T

j (max)

V

F (max)

2 x 7.5 A

45 V

150 °C

0.46 V

March 2011 Doc ID 018565 Rev 1 1/7

www.st.com

7

Characteristics STPS15L45C-Y

1 Characteristics

Table 2. Absolute Ratings (limiting values)

Symbol Parameter Value Unit

V

I

F(RMS)

I

F(AV)

I

FSM

I

RRM

P

T

Repetitive peak reverse voltage 45 V

RRM

Forward rms voltage 10 A

Average forward current

= 140 °C

c

δ = 0.5

Per diode
Per device

T

Surge non repetitive forward current tp = 10 ms sinusoidal 75 A

Peak repetitive reverse current tp = 2 µs square F= 1 kHz 1

Repetitive peak avalanche power tp = 1 µs Tj = 25 °C 3700 W

ARM

Storage temperature range - 65 to + 175 °C

stg

T

Maximum operating junction temperature range

j

(1)

- 40 to +150 °C

7.5
15

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

<

Rth(j-a)

1

dPtot

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

dTj

Table 3. Thermal resistance

Symbol Parameter Value Unit

R

R

th(j-c)

th(c)

Junction to case

Per diode
To t al

Coupling 0.7

4

2.4

°C/W

When the diodes 1 and 2 are used simultaneously:

ΔT

(diode 1) = P(diode1) x R

j

Table 4. Static electrical characteristics

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

th(j-c)

th(c)

A

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

= 125 °C 23 45 mA

T

j

= 25 °C IF = 7.5 A 0.52

T

j

Tj = 125 °C

T

= 25 °C IF = 12 A 0.60

j

= 125 °C IF = 12 A 0.49 0.57

T

j

T

= 25 °C IF = 15 A 0.64

j

= 125 °C IF = 15 A 0.53 0.63

T

j

V

I

F

To evaluate the conduction losses use the following equation:
P = 0.29 x I

2/7 Doc ID 018565 Rev 1

F(AV)

+ 0.023 I

F2(RMS)

= V

R

RRM

= 7.5 A

1mA

0.40 0.46

V

STPS15L45C-Y Characteristics

0

Figure 1. Conduction losses versus

average current

Figure 3. Normalized avalanche power

derating versus pulse duration

P(tp)

ARM

P (1µs)

ARM

1

0.1

Figure 2. Average forward current versus

ambient temperature (δ = 0.5)

Figure 4. Normalized avalanche power

derating versus junction
temperature

P(T)

ARM j

P (25 °C)

ARM

1.2

1

0.8

0.01

t (µs)

.001

0.10.01 1

10 100

p

1000

Figure 5. Non repetitive surge peak forward

current versus overload duration
(maximum values)

0.6

0.4

0.2

0

25 50 75 100 125

Figure 6. Relative variation of thermal

impedance junction to ambient
versus pulse duration

T (°C)

j

150

Doc ID 018565 Rev 1 3/7

Characteristics STPS15L45C-Y

Figure 7. Reverse leakage current versus

reverse voltage applied
(typical values)

Figure 9. Forward voltage drop versus

forward current

Figure 8. Junction capacitance versus

reverse voltage applied
(typical values)

Figure 10. Thermal resistance junction to

ambient versus copper surface
under tab

Rth(j-a)(°C/W)

100

90

80

70

60

50

40

30

20

10

0

02468101214161820

epoxy printed board copper thickness = 35 µm

S(cm²)

4/7 Doc ID 018565 Rev 1

STPS15L45C-Y Package information

2 Package information

● Epoxy meets UL94,V0

● Lead-free packages

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. DPAK dimensions

®

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

®

is an ST trademark.

.

Dimensions

Ref.

Millimeters Inches

Min. Max. Min. Max.

A 2.20 2.40 0.086 0.094

E

B2

L2

H

L4

B

G

A1

A

C2

R

D

R

C

A1 0.90 1.10 0.035 0.043

A2 0.03 0.23 0.001 0.009

B 0.64 0.90 0.025 0.035

B2 5.20 5.40 0.204 0.212

C 0.45 0.60 0.017 0.023

C2 0.48 0.60 0.018 0.023

D 6.00 6.20 0.236 0.244

E 6.40 6.60 0.251 0.259

0.60 MIN.

A2

G 4.40 4.60 0.173 0.181

H 9.35 10.10 0.368 0.397

V2

L2 0.80 typ. 0.031 typ.

Figure 11. Footprint (dimensions in mm)

6.7 3 3

6.7

Doc ID 018565 Rev 1 5/7

L4 0.60 1.00 0.023 0.039

V2 0° 8° 0° 8°

1.6

2.3

2.3

1.6

Ordering information STPS15L45C-Y

3 Ordering information

Table 6. Ordering information

Order code Marking Package Weight Base qty Delivery mode

STPS15L45CBY-TR S15L45CY DPAK 0.30 g 2500 Tape and reel

4 Revision history

Table 7. Document revision history

Date Revision Changes

10-Mar-2011 1 First issue.

6/7 Doc ID 018565 Rev 1

STPS15L45C-Y

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