Datasheet STPS0520Z Datasheet (SGS Thomson Microelectronics)

®

MAIN PRODUCT CHARACTERISTICS

STPS0520Z

SCHOTTKY RECTIFIERS

I

F(AV)

V

RRM

V

(max) 0.32 V

F

0.5 A
20 V

FEATURES AND BENEFITS

VERY SMALL CONDUCTION LOSSES

■

NEGLIGIBLE SWITCHING LOSSES

■

EXTREMELY FAST SWITCHING

■

DESCRIPTION

Single Schottky rectifier suited for switch mode
power supplies and high frequency DC to DC
converters.

Packaged in SOD-123, this device is intended for
use in low voltage, high frequency inverters, free
wheeling and polarity protection applications. Due
to the small size of the package this device fits
GSM and PCMCIA requirements.

ABSOLUTE RATINGS (limiting values)

SOD-123

Symbol Parameter Value Unit

V

RRM

I

F(RMS)

I

F(AV)

Repetitive peak reverse voltage 20 V
RMS forward current 2 A
Average forward current

Ta=25°C 0.5 A

δ=0.5

I

FSM

Surge non repetitive forward current tp=10ms

5.5 A

sinusoidal

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

T

Storage temperature range - 65 to + 125 °C

stg

Tj Maximum operating junction temperature * 125 °C

TL Maximum temperature for soldering during 10s 260 °C

dPtot

*:

<

dTj Rth j a

January 2002 - Ed : 2B

thermal runaway condition for a diode on its own heatsink

−1()

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STPS0520Z

THERMAL RESISTANCE

Symbol Parameter Value Unit

R

th (j-a)

Junction to ambient 430 (*)

210 (**)

(*) Mountedonepoxy board with recommended Pad Layout.
(**) Mounted on epoxy board with 50mm2 copper area.

STATIC ELECTRICAL CHARACTERISTICS

Value

Symbol Parameter Tests conditions

typ. max.

I

* Reverseleakage current Tj = 25°C VR=10V 60 µA

R

Tj = 100°C 2.5 5 mA
Tj = 25°C V

R=VRRM

Tj = 100°C 4.3 8 mA

V

** Forwardvoltage drop Tj = 25°C IF= 0.1 A 0.3 V

F

Tj = 100°C 0.18 0.22
Tj = 25°C I

= 0.5 A 0.385

F

°C/W

UnitSTPS0520Z

150 µA

Tj=100°C 0.29 0.32

Pulse test : * tp=5ms,δ<2%

** tp = 380 µs, δ <2%

To evaluate the maximum conduction losses use the following equation :
P=0.23xI

F(AV)

+0.18xI

F2(RMS)

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STPS0520Z

Fig. 1: Average forward power dissipation versus

average forward current

PF(av)(W)

0.25

δ = 0.05

δ = 0.1

δ = 0.2

δ = 0.5

0.20

0.15

δ = 1

0.10

0.05

T

0.00

IF(av) (A)

0.0 0.1 0.2 0.3 0.4 0.5 0.6

δ

=tp/T

tp

Fig. 3: Non repetitive surge peak forward current
versus overload duration (maximum values).

IM(A)

3.0

2.5

2.0

1.5

Ta=25°C

Ta=50°C

Ta=75°C

Fig. 2: Average forward current versus ambient
temperature (δ = 0.5)

IF(av)(A)

0.6

0.5

0.4

0.3

0.2

0.1

0.0
0 25 50 75 100 125

δ

=tp/T

T

tp

Tamb(°C)

Fig. 4: Relative variation of thermal impedance

junction to ambient versus pulse duration (Epoxy
printed circuit board FR4 with recommended pad
layout).

Zth(j-a)/Rth(j-a)

1E+0

δ = 0.5

δ = 0.2

δ = 0.1

1E-1

1.0

IM

0.5

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

δ=0.5

t

t(s)

Fig. 5: Reverse leakage current versus reverse

voltage applied (typical values).

IR(mA)

2E+1
1E+1

1E+0

1E-1

1E-2

1E-3

0 2 4 6 8 101214161820

Tj=125°C

Tj=100°C

Tj=70°C

Tj=25°C

VR(V)

1E-2

Single pulse

tp(s)

1E-3

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

δ

=tp/T

T

tp

Fig. 6: Relative variation of reverse leakage cur­rent versus junction temperature (typical values).

IR[Tj] / IR[Tj=25°C]

1E+3

1E+2

1E+1

1E+0

VR=VRRM

Tj(°C)

1E-1

0 25 50 75 100 125

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STPS0520Z

Fig. 7: Junction capacitance versus reverse volt-

age applied (typical values).

C(pF)

200

F=1MHz
Tj=25°C

100

50

20

VR(V)

10

12 51020

Fig. 8-2:Forward voltage drop versus forwardcur­rent (maximum values, high level)

IFM(A)

5.0

Tj=100°C

Typical values

Fig. 8-1:Forward voltage drop versus forwardcur­rent (maximum values, low level)

IFM(A)

0.5

Tj=100°C

0.4

0.3

Typical values

Tj=100°C

Tj=25°C

0.2

0.1

VFM(V)

0.0

0.0 0.1 0.2 0.3 0.4 0.5

Fig. 9: Variation of thermal resistance junction to
ambient versus copper surface under each lead
(Printed circuit board FR4, e(Cu) = 35µm).

Rth(j-a) (°C/W)

350

300

P=0.25W

1.0

Tj=100°C

Tj=25°C

VFM(V)

0.1

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

250

200

150

S(mm²)

100

0 20406080100

4/5

PACKAGE MECHANICAL DATA

SOD-123

STPS0520Z

H

E

D

c

G

FOOTPRINT (in millimeters)

4.45

A2

b

A1

REF.

Millimeters Inches

Min. Max. Min. Max.

A 1.45 0.057

A1 0 0.1 0 0.004

DIMENSIONS

A

A2 0.85 1.35 0.033 0.053

b 0.55 Typ. 0.022 Typ.

c 0.15 Typ. 0.039 Typ.
D 2.55 2.85 0.1 0.112
E 1.4 1.7 0.055 0.067
G 0.25 0.01
H 3.55 3.95 0.14 0.156

0.65

0.97

2.51

0.97

MARKING

Type Marking Package Weight Base qty Deliverymode

STPS0520Z Z52 SOD-123 0.01g. 3000 Tape & reel

STPS0520Z10K Z52 SOD-123 0.01 g 10000 Tape & reel

■

Epoxy meets UL94, V0.

■

Band indicates cathode.

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