ST STPS20M60C User Manual
STPS20M60C
Power Schottky rectifier
Features
■ High current capability
■ Avalanche rated
■ Low forward voltage drop
■ High frequency operation
Description
The STPS20M60C is a dual diode Schottky
rectifier, suited for high frequency switch mode
power supply.
Packaged in TO-220AB, I
device is intended to be used in notebook, game
station and desktop adapters, providing in these
aplications a good efficiency at both low and high
load.
Table 1. Device summary
Symbol Value
I
F(AV)
V
RRM
(typ) 0.370 V
V
F
(max) 150 °C
T
j
2
PAK and D2PAK, this
2 x 10 A
60 V
A1
K
A2
K
K
A2
K
A1
2
PAK
I
STPS20M60CR
A1
2
PAK
D
STPS20M60CG-TR
K
A2
K
A1
TO-220AB
STPS20M60CT
Figure 1. Electrical characteristics
2 x I
O
I
"Forward"
X
V
I
A2
(a)
I
F
I
V
RRM
V
V
a. V
ARM
operating area defined in Figure 12. V
pulse measurements (t
are static characteristics
AR
and I
R
"Reverse"
must respect the reverse safe
ARM
O
< 1 µs). VR, IR, V
p
I
R
V
To
I
AR
V
F(Io)
X
V
V
F(2xIo)
F
and IAR are
AR
and VF,
RRM
V
October 2011 Doc ID 022057 Rev 1 1/10
www.st.com
10
Characteristics STPS20M60C
1 Characteristics
Table 2. Absolute ratings (limiting values, per diode, at T
otherwise specified)
Symbol Parameter Value Unit
= 25 °C unless
amb
V
I
F(RMS)
I
F(AV)
I
FSM
P
ARM
V
ARM
V
ASM
T
1. For temperature or pulse time duration deratings, please refer to Figure 4 and 5. More details regarding the
avalanche energy measurements and diode validation in the avalanche are provided in the application
notes AN1768 and AN2025.
2. See Figure 12
3. condition to avoid thermal runaway for a diode on its own heatsink
Table 3. Thermal parameters
Repetitive peak reverse voltage 60 V
RRM
Forward rms current 40 A
Average forward current, δ = 0.5
Tc = 140 °C
= 135 °C
T
c
Per diode
Per device
Surge non repetitive forward current tp = 10 ms sinusoidal 300 A
(1)
Repetitive peak avalanche power Tj = 25 °C, tp = 1 µs 13600 W
Maximum repetitive peak
(2)
avalanche voltage
Maximum single-pulse
(2)
peak avalanche voltage
Storage temperature range -65 to +175 °C
stg
T
Maximum operating junction temperature
j
<
Rth(j-a)
1
dPtot
dTj
< 1 µs, Tj < 150 °C, IAR < 51 A 80 V
t
p
< 1 µs, Tj < 150 °C, IAR < 51 A 80 V
t
p
(3)
10
20
150 °C
Symbol Parameter Value Unit
R
R
Junction to case
th(j-c)
Coupling 0.2 °C/W
th(c)
per diode 1.5
total 0.85
°C/W
A
When the two diodes 1 and 2 are used simultaneously:
ΔT
(diode 1) = P(diode 1) x R
j
2/10 Doc ID 022057 Rev 1
(Per diode) + P(diode 2) x R
th(j-c)
th(c)
STPS20M60C Characteristics
Table 4. Static electrical characteristics (per diode)
Symbol Parameter Test conditions Min. Typ. Max. Unit
(1)
I
R
V
Reverse leakage current
(2)
Forward voltage drop
F
1. Pulse test: tp = 5 ms, δ < 2 %
2. Pulse test: t
= 380 µs, δ < 2 %
p
= 25 °C
T
j
= 125 °C - 10 40 mA
T
j
Tj = 25 °C
= 125 °C - 0.370 0.410
T
j
= 25 °C
T
j
= 125 °C - 0.450 0.510
T
j
V
= V
R
I
= 5 A
F
I
= 10 A
F
RRM
-1565µA
- 0.465 0.500
- 0.525 0.570
To evaluate the conduction losses use the following equation:
P = 0.375 x I
Figure 2. Average forward power dissipation
versus average forward current
(per diode)
P (W)
F(AV)
8
7
6
5
4
3
2
1
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13
δ = 0.05
Figure 4. Normalized avalanche power
derating versus pulse duration
F(AV)
δ = 0.1
δ = t / T
+ 0.0135 x I
δ = 0.2
T
t
p
p
δ = 0.5
F2(RMS)
δ = 1
I (A)
F(AV)
Figure 3. Average forward current versus
ambient temperature
(δ = 0.5, per diode)
I (A)
F(AV)
12
R
= R
th(j-a)
T (°C)
amb
th(j-c)
10
8
6
4
2
0
0 25 50 75 100 125 150
Figure 5. Normalized avalanche power
derating versus junction
temperature
P(tp)
P (1µs)
ARM
1
ARM
P (25 °C)
1.2
1
P(T)
ARM j
ARM
V
0.1
0.01
0.001
0.10.01 1
10 100
0.8
0.6
0.4
0.2
T (°C)
t (µs)
p
1000
0
25 50 75 100 125
j
150
Doc ID 022057 Rev 1 3/10
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