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STPS2L40U

P1-P3P4-P6P7-P9P10-P10
September 2008 Rev 4 1/10
10
STPS2L40
Low drop power Schottky rectifier
Features
■ Very small conduction losses
■ Negligible switching losses
■ Low forward voltage drop
■ Surface mount miniature package
■ Avalanche capability specified
■ ECOPACK2
®
halogen-free component
(SMAflat and SMBflat)
Description
Single chip Schottky rectifiers suited to Switched
Mode Power Supplies and high frequency DC to
DC converters.
Packaged in SMB, low profile SMB and low profile
SMA, this device is especially intended for surface
mounting and used in low voltage, high frequency
inverters, free wheeling and polarity protection
applications.
Table 1. Device summary
I
F(AV)
2 A
V
RRM
40 V
T
j
(max) 150 °C
V
F
(max) 0.34 V
K
A
K
A
K
A
SMB
STPS2L40U
SMBflat
STPS2L40UF
SMAflat
STPS2L40AF
www.st.com
Characteristics STPS2L40
2/10
1 Characteristics
To evaluate the conduction losses use the following equation:
P = 0.22 x I
F(AV)
+ 0.06 I
F
2
(RMS)
Table 2. Absolute ratings (limiting values)
Symbol Parameter Value Unit
V
RRM
Repetitive peak reverse voltage 40 V
I
F(AV)
Average forward current
SMB T
L
= 130 °C δ = 0.5
2ASMBflat T
L
= 140 °C δ = 0.5
SMAflat T
L
= 130 °C δ = 0.5
I
FSM
Surge non repetitive forward current t
p
= 10 ms sinusoidal 75 A
P
ARM
Repetitive peak avalanche power t
p
= 1 µs T
j
= 25 °C 2200 W
T
stg
Storage temperature range -65 to + 150 °C
T
j
Operating junction temperature
(1)
1. condition to avoid thermal runaway for a diode on its own heatsink
150 °C
Table 3. Thermal resistances
Symbol Parameter Value Unit
R
th (j-l)
Junction to lead
SMB 20
°C/W SMBflat 10
SMAflat 20
Table 4. Static electrical characteristics
Symbol Tests conditions Min. Typ. Max. Unit
I
R
(1)
1. Pulse test: t
p
= 380 µs, δ < 2
Reverse leakage current
T
j
= 25 °C
V
R
= 40 V
220 µA
T
j
= 100 °C 20 mA
T
j
= 125 °C 38 80 mA
V
F
(1)
Forward voltage drop
T
j
= 25 °C
I
F
= 1 A
0.39
V
T
j
= 125 °C 0.25 0.28
T
j
= 25 °C
I
F
= 2 A
0.43
T
j
= 125 °C 0.31 0.34
T
j
= 25 °C
I
F
= 4 A
0.5
V
T
j
= 125 °C 0.39 0.45
d
Ptot
dTj
-
--------------
1
Rth j a–()
--------------------------
<
STPS2L40 Characteristics
3/10
Figure 1. Average forward power dissipation
versus average forward current
Figure 2. Average forward current versus
ambient temperature (
δ = 0.5) SMB
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8
P (W)
F(AV)
T
δ
=tp/T
tp
I (A)
F(AV)
δ = 1
δ = 0.05
δ = 0.1
δ = 0.2
δ = 0.5
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
0 25 50 75 100 125 150
I (A)
F(AV)
T (°C)
amb
R =100°C/W
th(j-a)
R=R
th(j-a) th(j-l)
SMB
T
δ
=tp/T
tp
Figure 3. Average forward current versus
ambient temperature (
δ = 0.5)
SMBflat
Figure 4. Average forward current versus
ambient temperature (δ = 0.5)
SMAflat
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
0 25 50 75 100 125 150
I(A)
F(AV)
SMBflat
T (°C)
amb
R =100°C/W
th(j-a)
R=R
th(j-a) th(j-l)
T
δ
=tp/T
tp
I (A)
F(AV)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
0 25 50 75 100 125 150
R
th(j-a)
=R
th(j-l)
T
δ
=tp/T
tp
R
th(j-a)
=200 °C/W
SMAflat
T (°C)
amb
Figure 5. Non repetitive surge peak forward
current versus overload duration
(maximum values) SMB
Figure 6. Non repetitive surge peak forward
current versus overload duration
(maximum values) SMBflat
0
1
2
3
4
5
6
7
8
9
10
11
12
1.E-03 1.E-02 1.E-01 1.E+00
I
M
t
δ
=0.5
I (A)
M
t(s)
T =25°C
a
T =75°C
a
T =125°C
a
SMB
0
5
10
15
20
25
30
1.E-03 1.E-02 1.E-01 1.E+00
I (A)
M
T =25°C
L
T =75°C
L
T =125°C
L
SMBflat
I
M
t
δ
=0.5
t(s)
P1-P3P4-P6P7-P9P10-P10

STPS2L40U

Mfr. #:
Buy STPS2L40U
Manufacturer:
STMicroelectronics
Description:
Schottky Diodes & Rectifiers 2.0 Amp 40 Volt 0.34V Vf Low Drop
Lifecycle:
New from this manufacturer.
Delivery:
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