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Электронный компонент: STTH112

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STTH112/A/U
January 2003 - Ed: 2
HIGH VOLTAGE ULTRAFAST RECTIFIER
The STTH112, which is using ST ultrafast high
voltage planar technology, is specially suited for
free-wheeling, clamping, snubbering, demagneti-
zation in power supplies and other power switching
applications.
DESCRIPTION
s
Low forward voltage drop
s
High reliability
s
High surge current capability
s
Soft switching for reduced EMI disturbances
s
Planar technology
FEATURES AND BENEFITS
Symbol
Parameter
Value
Unit
V
RRM
Repetitive peak reverse voltage
1200
V
V
(RMS)
RMS voltage
850
V
I
F(AV)
Average forward current
Tl = 85C
=0.5
DO-41
1
A
Tl = 115C
=0.5
SMA
Tl = 125C
=0.5
SMB
I
FSM
Forward surge current
t = 8.3 ms
DO-41
20
A
SMA
18
SMB
T
stg
Storage temperature range
- 50 + 175
C
Tj
Maximum operating junction temperature
+ 175
C
ABSOLUTE RATINGS (limiting values)
I
F(AV)
1 A
V
RRM
1200 V
Tj (max)
175 C
V
F
(max)
1.65 V
MAIN PRODUCT CHARACTERISTICS
DO-41
STTH112
SMA
STTH112A
SMB
STTH112U
STTH112/A/U
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Symbol
Parameter
Tests conditions
Min.
Typ.
Max.
Unit
I
R
Reverse leakage current
V
R
= 1200V
Tj = 25C
5
A
Tj = 125C
50
V
F
Forward voltage drop
I
F
= 1 A
Tj = 25C
1.9
V
Tj = 125C
1.17
1.65
To evaluate the maximum conduction losses use the following equation :
P = 1.35 x I
F(AV)
+ 0.3 x I
F
2
(RMS)
STATIC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Value
Unit
R
th (j-l)
Junction to lead
L = 10 mm
DO-41
45
C/W
SMA
30
SMB
25
R
th (j-a)
Junction to ambient
L = 10 mm
DO-41
110
THERMAL PARAMETERS
Symbol
Parameter
Tests conditions
Min.
Typ.
Max.
Unit
t
rr
Reverse recovery time
I
F
= 0.5 A
Irr = 0.25 A I
R
= 1A
Tj = 25C
75
ns
t
fr
Forward recovery time
I
F
= 1 A
dI
F
/dt = 50 A/s
V
FR
= 1.1 x V
F
max
Tj = 25C
500
ns
V
FP
Forward recovery voltage
30
V
DYNAMIC ELECTRICAL CHARACTERISTICS
P(W)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
= 1
= 0.05
= 0.5
= 0.2
= 0.1
I
(A)
F(AV)
T
=tp/T
tp
Fig. 1: Conduction losses versus average current.
I
(A)
FM
0.1
1.0
10.0
100.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
T =125C
(maximum values)
j
T =125C
(typical values)
j
T =25C
(maximum values)
j
V
(V)
FM
Fig. 2: Forward voltage drop versus forward
current
.
STTH112/A/U
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Z
/R
th(j-c)
th(j-c)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
T
=tp/T
tp
t (s)
p
= 0.5
= 0.2
= 0.1
Single pulse
Fig. 3-1: Relative variation of thermal impedance
junction ambient versus pulse duration (epoxy
FR4, L
leads
= 10mm) (DO-41).
Z
/R
th(j-c)
th(j-c)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
T
=tp/T
tp
t (s)
p
= 0.5
= 0.2
= 0.1
Single pulse
Fig. 3-2: Relative variation of thermal impedance
junction ambient versus pulse duration (epoxy
FR4) (SMA).
R
(C/W)
th(j-a)
0
10
20
30
40
50
60
70
80
90
100
110
0
1
2
3
4
5
6
7
8
9
10
S(cm)
DO-41
L
=10mm
leads
SMB
Fig. 4-1: Thermal resistance junction to ambient
versus copper surface under each lead (epoxy
printed circuit board FR4, copper thickness: 35m)
(DO-41, SMB).
R
(C/W)
th(j-a)
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
S(cm)
SMA
Fig. 4-2: Thermal resistance junction to ambient
versus copper surface under each lead (epoxy
printed circuit board FR4, copper thickness: 35m)
(SMA).
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
Z
/R
th(j-c)
th(j-c)
T
=tp/T
tp
t (s)
p
= 0.5
= 0.2
= 0.1
Single pulse
Fig. 3-3: Relative variation of thermal impedance
junction ambient versus pulse duration (epoxy
FR4)(SMB).
STTH112/A/U
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PACKAGE MECHANICAL DATA
SMA
E
C
L
E1
D
A1
A2
b
REF.
DIMENSIONS
Millimeters
Inches
Min.
Max.
Min.
Max.
A1
1.90
2.70
0.075
0.106
A2
0.05
0.20
0.002
0.008
b
1.25
1.65
0.049
0.065
c
0.15
0.41
0.006
0.016
E
4.80
5.60
0.189
0.220
E1
3.95
4.60
0.156
0.181
D
2.25
2.95
0.089
0.116
L
0.75
1.60
0.030
0.063
2.40
1.65
1.45
1.45
FOOTPRINT (in millimeters)
STTH112/A/U
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PACKAGE MECHANICAL DATA
SMB
E
C
L
E1
D
A1
A2
b
REF.
DIMENSIONS
Millimeters
Inches
Min.
Max.
Min.
Max.
A1
1.90
2.45
0.075
0.096
A2
0.05
0.20
0.002
0.008
b
1.95
2.20
0.077
0.087
c
0.15
0.41
0.006
0.016
E
5.10
5.60
0.201
0.220
E1
4.05
4.60
0.159
0.181
D
3.30
3.95
0.130
0.156
L
0.75
1.60
0.030
0.063
1.52
2.75
2.3
1.52
FOOTPRINT (in millimeters)