SGS Thomson Microelectronics STPS140Z Datasheet
MAINPRODUCTCHARACTERISTICS
STPS140Z
POWER SCHOTTKY RECTIFIER
I
F
V
RRM
V
(max) 0.49 V
F
1A
40 V
Tj (max) 150°C
FEATURESAND BENEFITS
VERYSMALL CONDUCTION LOSSES
NEGLIGIBLESWITCHING LOSSES
EXTREMELYFASTSWITCHING
DESCRIPTION
Single Schottky rectifier suited for Switchmode
PowerSuppliesand highfrequencyDCto DC converters.
Packaged in SOD123, this device is intended for
use in low voltage, high frequency inverters, free
wheelingand polarity protection applications.Due
tothesmallsizeofthe packagethis devicefit GSM
andPCMCIA requirements.
ABSOLUTE RATINGS(limitingvalues)
SOD123
Symbol Parameter Value Unit
V
RRM
I
I
FSM
Repetitivepeak reversevoltage 40 V
Continuousforwardcurrent
F
T
=60°C1A
amb
Surgenon repetitiveforwardcurrent tp = 10 ms
5.5 A
Sinusoidal
I
RRM
Repetitivepeak reversecurrent tp = 2 µs square
0.5 A
F = 1kHz
I
RSM
T
stg
Nonrepetitive peak reversecurrent tp = 100µs square 1 A
Storagetemperaturerange - 65 to + 150 °C
Tj Maximumoperatingjunction temperature* 150
T
Maximumtemperaturefor solderingduring 10s 260 °C
L
dV/dt Criticalrate of riseof reverse voltage 10000 V/µs
dPtot
*
dTj
May 1999 - Ed:1
<
Rth(j−a
1
Thermal runawaycondition fora diode onits own heatsink.
)
1/5
STPS140Z
THERMALRESISTANCES
Symbol Parameter Value Unit
R
th (j-a)
* with 50 mm2copper area (e=35µm)
Junctionto ambient* 175 °C/W
STATICELECTRICALCHARACTERISTICS
Symbol Tests Conditions TestsConditions Min. Typ. Max. Unit
* Reverse leakage current Tj = 25°CV
I
R
Tj = 25°CV
=5V 10 µA
R
=40V 40 µA
R
Tj = 100°C 1.5 5 mA
** Forwardvoltagedrop Tj = 25°CI
V
F
= 1 A 0.55 V
F
Tj = 100°C 0.45 0.51
Pulse test : * tp = 5 ms, δ <2%
** tp = 380µs, δ <2%
To evaluatethe maximum conductionlossesuse thefollowing equation:
P = 0.2 x I
F(AV)
+ 0.3 x I
F2(RMS)
atTj = 150°C
Fig. 1: Average forward power dissipationversus
averageforwardcurrent.
PF(av)(W)
0.6
0.5
0.4
0.3
0.2
0.1
0.0
δ = 0.05
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
2/5
δ = 0.1
δ = 0.2
IF(av)(A)
δ= 0.5
δ
=tp/T
δ =1
T
tp
Fig. 2: Average forward current versus ambient
temperature(δ=1).
IF(av)(A)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0 25 50 75 100 125 150
δ
=tp/T
T
tp
Tamb(°C)
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