Vishay STPS40L15CWPBF Data Sheet

TO-2 47AC

PRODUCT SUMMARY

I

F(AV)

V

R

I

RM

Vishay High Power Products

Schottky Rectifier, 2 x 20 A

FEATURES

Base

common

cathode

2

1 3

Anode

1

600 mA at 100 °C

2

Common

cathode

2 x 20 A

15 V

Anode

2

• 125 °C TJ operation (VR < 5 V)

• Center tap module

• Optimized for OR-ing applications

• Ultra low forward voltage drop

• High frequency operation

• High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance

• Guard ring for enhanced ruggedness and long term
reliability

• Lead (Pb)-free (“PbF” suffix)

• Designed and qualified for industrial level

DESCRIPTION

The STPS40L15CWPbF center tap Schottky rectifier module
has been optimized for ultra low forward voltage drop
specifically for the OR-ing of parallel power supplies. The
proprietary barrier technology allows for reliable operation up
to 125 °C junction temperature. Typical applications are in
parallel switching power supplies, converters, reverse
battery protection, and redundant power subsystems.

STPS40L15CWPbF

Pb-free

Available

RoHS*

COMPLIANT

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL CHARACTERISTICS VALUES UNITS

I

F(AV)

V

RRM

I

FSM

V

F

T

J

Rectangular waveform 40 A

15 V

tp = 5 µs sine 700 A

19 Apk, TJ = 125 °C (per leg, typical) 0.25 V

- 55 to 125 °C

VOLTAGE RATINGS

PARAMETER SYMBOL TEST CONDITIONS STPS40L15CWPbF UNITS

Maximum DC reverse voltage V

Maximum working peak reverse voltage V

R

RWM

TJ = 100 °C 15 V

ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum average forward current
See fig. 5

Maximum peak one cycle
non-repetitive surge current per leg
See fig. 7

Non-repetitive avalanche energy per leg E

Repetitive avalanche current per leg I

per leg

per device 40

I

F(AV)

I

FSM

AR

50 % duty cycle at TC = 86 °C, rectangular waveform

5 µs sine or 3 µs rect. pulse

10 ms sine or 6 ms rect. pulse 330

TJ = 25 °C, IAS = 2 A, L = 5 mH 10 mJ

AS

Current decaying linearly to zero in 1 µs
Frequency limited by T

maximum VA = 1.5 x VR typical

J

Following any rated
load condition and with
rated V

RRM

applied

20

700

2A

A

* Pb containing terminations are not RoHS compliant, exemptions may apply

Document Number: 94331 For technical questions, contact: [e-mail]
Revision: 14-Aug-08 1

www.vishay.com

STPS40L15CWPbF

Vishay High Power Products

Schottky Rectifier, 2 x 20 A

ELECTRICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS TYP. MAX. UNITS

19 A

Maximum forward voltage drop per leg
See fig. 1

V

FM

40 A - 0.52

(1)

19 A

40 A 0.37 0.50

Reverse leakage current per leg
See fig. 2

I

RM

Threshold voltage V

Forward slope resistance r

Maximum junction capacitance per leg C

Typical series inductance per leg L

F(TO)

TJ = 25 °C

(1)

T

= 100 °C - 600

J

TJ = TJ maximum

t

VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C - 2000 pF

T

Measured lead to lead 5 mm from package body 8 - nH

S

Maximum voltage rate of change dV/dt Rated V

T

= 25 °C

J

= 125 °C

T

J

V

= Rated V

R

R

R

-0.41

0.25 0.33

-10

0.182 V

7.6 mΩ

10 000 V/µs

Note

(1)

Pulse width < 300 µs, duty cycle < 2 %

THERMAL - MECHANICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum junction temperature range T

Maximum storage temperature range T

Maximum thermal resistance,
junction to case per leg

Maximum thermal resistance,
junction to case per package

Typical thermal resistance,
case to heatsink

J

Stg

DC operation
See fig. 4

R

thJC

DC operation 0.7

Mounting surface, smooth and greased 0.24

R

thCS

Approximate weight

Mounting torque

minimum

maximum 12 (10)

Non-lubricated threads

Marking device Case style TO-247AC (JEDEC) STPS40L15CW

- 55 to 125

- 55 to 150

°C

1.4

°C/W

6g

0.21 oz.

6 (5)

kgf · cm
(lbf · in)

V

mA

www.vishay.com For technical questions, contact: [e-mail]

Document Number: 94331

2 Revision: 14-Aug-08

STPS40L15CWPbF

Schottky Rectifier, 2 x 20 A

1000

100

10

1

- Instantaneous Forward Current (A)

F

I

0

0.4

0.2

V

0.6 0.8 1.0

- Forward Voltage Drop (V)

FM

Fig. 1 - Maximum Forward Voltage Drop Characteristics

TJ = 125 °C
T

= 75 °C

J

T

= 25 °C

J

10 000

1.2

1.4 1.6

Vishay High Power Products

1000

TJ = 100 °C

100

10

1

- Reverse Current (mA)

R

I

0.1

= 75 °C

T

J

= 50 °C

T

J

T

= 25 °C

J

3

V

- Reverse Voltage (V)

R

Fig. 2 - Typical Values of Reverse Current vs.

69 15

120

Reverse Voltage

= 25 °C

T

J

1000

- Junction Capacitance (pF)

T

C

100

0

V

R

1051520

- Reverse Voltage (V)

Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage

10

1

0.1

Single pulse

- Thermal Impedance (°C/W)

thJC

Z

0.01

0.00001 0.0001 0.001 0.01 0.1 1

(thermal resistance)

D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20

t1 - Rectangular Pulse Duration (s)

Fig. 4 - Maximum Thermal Impedance Z

Notes:

1. Duty factor D = t

2. Peak TJ = PDM x Z

Characteristics

thJC

P

DM

t

1

t

2

1/t2

+ T

thJC

C

100 10

Document Number: 94331 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 14-Aug-08 3