SGS Thomson Microelectronics STPS2L25U Datasheet
®
LOW DROP POWER SCHOTTKY RECTIFIER
MAIN PRODUCT CHARACTERISTIC S
STPS2L25U
I
F(AV)
V
RRM
2 A
25 V
Tj (max) 150 °C
(max) 0.375 V
V
F
FEATURES AND BENEFITS
VERY LOW F O RW ARD VOLTAG E DROP FOR
LESS POWER DISSIPATION
OPTIMIZED CONDUCTION/REVERSE LOSSES
TRADE-OFF WHICH MEANS THE HIGHEST
EFFICIENCY IN THE APPLICATIONS
DESCR IPT ION
Single Schottky rectifier suited t o Switched Mode
Power Supplies and high frequency DC to DC converters.
Packaged in SMB (JEDEC DO214-AA), this device
is especially intended for use in parallel with MOSFETs in synchronous rectification.
ABSOLUTE RATINGS
(limiting values)
SMB
JEDEC DO-214AA
Symbol Parameter Value Unit
V
RRM
I
F(RMS)
I
F(AV)
I
FSM
I
RRM
I
RSM
T
stg
Tj Maximum operating junction temperature * 150
Repetitive peak reverse voltage 25 V
RMS forward current 10 A
Average forward current TL = 125°C
δ
= 0.5 2 A
Surge non repetitive forward current tp = 10 ms Sinusoidal 75 A
Repetitive peak reverse current tp=2 µs square F=1kHz 1 A
Non repetitive peak reverse current tp = 100 µs square 1 A
Storage temperature range - 65 to + 150
°
°
dV/dt Critical rate of rise of reverse voltage 10000 V /µs
dPtot
* :
June 1999 - Ed: 3A
dTj
<
1
Rth(j−a
thermal runaway condition for a diode on its own heatsink
)
C
C
1/4
STPS2L25U
THERMAL RESISTANCES
Symbol Parameter Value Unit
R
th(j-l)
Junction to lead 25
STATIC ELECTRICAL CHARACTERISTICS
Symbol Tests Conditions Tests Conditions Min. Typ. Max. Unit
* Reverse leakage current Tj = 25°CV
I
R
= V
R
RRM
90
Tj = 125°C1530mA
* Forward voltage drop Tj = 25°CI
V
F
= 2 A 0.45 V
F
Tj = 125°C 0.325 0.375
Tj = 25°CI
= 4 A 0.53
F
Tj = 125°C 0.43 0.51
Pulse test : * tp = 380 µs, δ < 2%
To evaluate the maximum conduction losses use the following equation :
P = 0.24 x I
F(AV)
+ 0.068 I
F2(RMS )
°
C/W
µ
A
Fig. 1:
Average forward power dissipation versus
average forward current.
PF(av)(W)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50
δ = 0.05
δ = 0.1
δ = 0.2
IF(av) (A)
δ = 0.5
δ
δ = 1
T
=tp/T
Fig. 2:
Average forward current versus ambient
temperature (δ=0.5).
IF(av)(A)
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
tp
0.2
0.0
0 25 50 75 100 125 150
δ
T
=tp/T
Rth(j-a)=100°C/W
tp
Rth(j-a)=Rth(j-l)
Tamb(°C)
2/4
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