STPS20SM100ST

April 2010 Doc ID 15524 Rev 2 1/11
11
STPS20SM100S
Power Schottky rectifier
Features
High current capability
Avalanche rated
Low forward voltage drop current
High frequency operation
Insulated package (TO-220FPAB):
Insulation voltage 2000 V rms
Package capacitance = 12 pF
Description
This single Schottky rectifier is suited for high
frequency switch mode power supply.
Packaged in TO-220AB, TO-220FPAB, D
2
PA K
and I
2
PAK, this device is intended to be used in
notebook, game station and desktop adaptors,
providing in these applications a good efficiency
at both low and high load.
Figure 1. Electrical characteristics
(a)
Table 1. Device summary
I
F(AV)
20 A
V
RRM
100 V
T
j
(max) 150 °C
V
F
(typ) 0.480 V
a. V
ARM
and I
ARM
must respect the reverse safe
operating area defined in Figure 14. V
AR
and I
AR
are
pulse measurements (t
p
< 1 µs). V
R
, I
R
, V
RRM
and V
F
,
are static characteristics
A(1)
K(2)
A(3)
TO-220AB
STPS20SM100ST
A
A
K
K
A
A
K
A
A
K
I
2
PAK
STPS20SM100SR
TO-220FPAB
STPS20SM100SFP
A
A
K
D
2
PAK
STPS20SM100SG
I
F
2 x I
O
I
O
I
R
I
AR
V
F(I
o
)
V
To
V
F(2xI
o
)
V
F
V
I
I
V
V
R
V
RRM
"Reverse"
"Forward"
V
AR
X
X
www.st.com
Characteristics STPS20SM100S
2/11 Doc ID 15524 Rev 2
1 Characteristics
To evaluate the conduction losses use the following equation:
P = 0.6 x I
F(AV)
+ 0.005 x I
F
2
(RMS)
Table 2. Absolute ratings (limiting values with terminals 1 and 3 short circuited)
Symbol Parameter Value Unit
V
RRM
Repetitive peak reverse voltage 100 V
I
F(RMS)
Forward rms current 30 A
I
F(AV)
Average forward current δ = 0.5
TO-220AB, D
2
PAK, I
2
PAK T
c
= 125 °C
20 A
TO-220FPAB T
c
= 85 °C
I
FSM
Surge non repetitive forward current
t
p
= 10 ms sinusoidal,
terminals 1 and 3 short circuited
350 A
P
ARM
(1)
Repetitive peak avalanche power t
p
= 1 µs T
j
= 25 °C 15000 W
V
ARM
(2)
Maximum repetitive peak avalanche
voltage
t
p
< 1 µs T
j
< 150 °C
I
AR
< 37.5 A
120 V
V
ASM
(2)
Maximum single pulse peak
avalanche voltage
t
p
< 1 µs T
j
< 150 °C
I
AR
< 37.5 A
120 V
T
stg
Storage temperature range -65 to + 150 °C
T
j
Maximum operating junction temperature
(3)
150 °C
1. For temperature or pulse time duration deratings, refer to Figure 4. and Figure 5.. More details regarding the avalanche
energy measurements and diode validation in the avalanche are provided in the application notes AN1768 and AN2025.
2. Refer to Figure 14.
3. condition to avoid thermal runaway for a diode on its own heatsink
dPtot
dTj
---------------
1
Rth j a()
--------------------------
<
Table 3. Thermal resistance
Symbol Parameter Value Unit
R
th(j-c)
Junction to case
TO-220AB, D
2
PAK, I
2
PA K 1 . 3
°C/W
TO-220FPAB 4
Table 4. Static electrical characteristics (terminals 1 and 3 short circuited)
Symbol Parameter Test conditions Min. Typ. Max. Unit
I
R
(1)
Reverse leakage current
T
j
= 25 °C
V
R
= V
RRM
10 30 µA
T
j
= 125 °C 10 30 mA
T
j
= 25 °C
V
R
= 70 V
A
T
j
= 125 °C 5 mA
V
F
(2)
Forward voltage drop
T
j
= 25 °C
I
F
= 5 A
565
mV
T
j
= 125 °C 480
T
j
= 25 °C
I
F
= 10 A
685
T
j
= 125 °C 560 620
T
j
= 25 °C
I
F
= 20 A
800 900
T
j
= 125 °C 630 700
1. Pulse test: t
p
= 5 ms, δ < 2%
2. Pulse test: t
p
= 380 µs, δ < 2%
STPS20SM100S Characteristics
Doc ID 15524 Rev 2 3/11
Figure 2. Average forward power dissipation
versus average forward current
Figure 3. Average forward current versus
ambient temperature (δ = 0.5)
0
2
4
6
8
10
12
14
16
18
20
22
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28
δ = 0.05
δ = 0.1
δ = 0.2
δ = 0.5
δ = 1
T
δ
=tp/T
tp
P
F
(av)(W)
I (av)(A)
F
0
2
4
6
8
10
12
14
16
18
20
22
0 25 50 75 100 125 150
R
th(j-a)
=R
th(j-c)
R
th(j-a)
=15°C/W
T
δ
=tp/T
tp
TO-220AB/I²PAK
TO-220FPAB
I
F
(av)(A)
T (°C)
amb
Figure 4. Normalized avalanche power
derating versus pulse duration
Figure 5. Normalized avalanche power
derating versus junction
temperature
0.01
0.10.01 1
0.1
10 100 1000
1
t (µs)
p
P(t)
P (1µs)
ARM p
ARM
0.001
0
0.2
0.4
0.6
0.8
1
1.2
25 50 75 100 125 150
T (°C)
j
P(T
j
)
P (25 °C)
ARM
ARM
Figure 6. Non repetitive surge peak forward
current versus overload
duration, maximum values
Figure 7. Non repetitive surge peak forward
current versus overload duration,
maximum values (TO-220FPAB)
0
40
80
120
160
200
240
280
320
1.E-03 1.E-02 1.E-01 1.E+00
T
C
=25°C
T
C
=75°C
T
C
=125°C
I
M
t
δ
=0.5
TO-220AB/I²PAK
I
M
(A)
t(s)
0
20
40
60
80
100
120
140
160
180
1.E-03 1.E-02 1.E-01 1.E+00
T
C
=25°C
T
C
=75°C
T
C
=125°C
I
M
t
δ
=0.5
TO-220FPAB
I
M
(A)
t(s)

STPS20SM100ST

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Schottky Diodes & Rectifiers 20A 100V
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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