STMICROELECTRONICS STPS640

STPS640CT/CF/CB

POWER SCHOTTKY RECTIFIER
MAIN PRODUCT CHARACTERISTICS
IF(AV)
2 x3A
A1
VRRM
Tj (max)
40 V
150 °C
A2
VF (max)
0.57 V
K
K
FEATURES AND BENEFITS
VERY SMALL CONDUCTION LOSSES
NEGLIGIBLE SWITCHING LOSSES
EXTREMELY FAST SWITCHING
LOW FORWARD DROP VOLTAGE
LOW CAPACITANCE
LOW THERMAL RESISTANCE
INSULATED PACKAGE:
Insulating voltage = 2000V DC
Capacitance = 12pF
SMD PACKAGE (tape and reel option: -TR)
A2
A1
DPAK
STPS640CB
DESCRIPTION
Dual Schottky rectifier suited to Switch Mode
Power Supplies and other Power Converters.
This device is intended for use in low and medium
voltage operation, and particulary, in high frequency circuitries where low switching losses are
required (free wheeling and polarity protection).
A1
K
A2
TO-220AB
STPS640CT
A1
K
A2
ISOWATT220AB
STPS640CF
ABSOLUTE RATINGS (limiting values, per diode)
Symbol
Parameter
Value
Unit
40
V
VRRM
Repetitive peak reverse voltage
IF(RMS)
RMS forward current
TO-220AB / ISOWATT220AB
10
A
Average forward current δ = 0.5
DPAK
TO-220AB
Tc = 135°C
6
3
A
ISOWATT220AB
Tc = 130°C
DPAK
Tc = 120°C
75
A
1
- 65 to + 150
A
°C
150
°C
10000
V/µs
IF(AV)
IFSM
Surge non repetitive forward current
IRRM
Tstg
Repetitive peak reverse current
Storage temperature range
Tj
dV/dt
tp = 10 ms Sinusoidal
tp = 2 µs F = 1kHz square
Maximum operating junction temperature
Critical rate of rise of reverse voltage
August 1999 - Ed: 4A
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STPS640CT/CF/CB
THERMAL RESISTANCES
Symbol
Rth (j-c)
Rth(c)
Parameter
Junction to case
Coupling
TO-220AB/ DPAK
Per diode
Total
ISOWATT220AB
Per diode
Total
TO-220AB
ISOWATT220AB
Value
Unit
5.5
3
7.5
5.2
°C/W
0.5
3
°C/W
Max.
Unit
100
µA
10
mA
V
When the diodes 1 and 2 are used simultaneously:
∆ Tj(diode 1) = P(diode1) x Rth(j-c)(Per diode) + P(diode 2) x Rth(c)
STATIC ELECTRICAL CHARACTERISTICS (per diode)
Symbol
IR *
Tests Conditions
Reverse leakage current
Min.
Tj = 25°C
Typ.
VR = VRRM
Tj = 125°C
VF *
Pulse test :
Forward voltage drop
2
Tj = 25°C
IF = 3 A
0.63
Tj = 25°C
Tj = 125°C
IF = 6 A
IF = 3 A
0.5
0.84
0.57
Tj = 125°C
IF = 6 A
0.67
0.72
* tp = 380 µs, δ < 2%
To evaluate the maximum conduction losses use the following equation :
P = 0.42 x IF(AV) + 0.050 IF2(RMS)
Fig. 1: Average forward power dissipation versus
average forward current (per diode).
PF(av)(W)
2.50
δ = 0.05
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0.00
0.0
0.5
1.0
2/6
Fig. 2: Average current versus ambient temperature
(δ = 0.5, per diode).
IF(av)(A)
δ = 0.1
δ = 0.2
4.0
δ = 0.5
3.5
TO-220AB/DPAK
Rth(j-a)=Rth(j-c)
3.0
δ=1
ISOWATT220AB
2.5
2.0
Rth(j-a)=15°C/W
1.5
T
T
δ=tp/T
IF(av) (A)
1.5
2.0
2.5
3.0
1.0
0.5
tp
3.5
4.0
0.0
δ=tp/T
0
tp
25
Tamb(°C)
50
75
100
125
150
STPS640CT/CF/CB
Fig. 3-1: Non repetitive surge peak forward current
versus overload duration.
(Maximum values, per diode) (TO-220AB/ DPAK).
IM(A)
45
40
35
30
25
20
15
IM
10
5
0
1E-3
Fig. 3-2: Non repetitive surge peak forward current
versus overload duration.
(Maximum values, per diode) (ISOWATT220AB).
IM(A)
40
35
30
25
Tc=75°C
Tc=100°C
t
15
1E-1
1E+0
Fig. 4.1: Relative variation of thermal transient
impedance junction to case versus pulse duration
(TO-220AB / DPAK).
1E-2
1E-1
1E+0
Zth(j-c)/Rth(j-c)
1.0
0.8
0.8
δ = 0.5
0.6
δ = 0.2
δ = 0.5
0.4
δ = 0.1
0.2
t(s)
Fig. 4-2: Relative variation of thermal transient
impedance junction to case versus pulse duration
(ISOWATT220AB).
Zth(j-c)/Rth(j-c)
0.4
t
δ=0.5
0
1E-3
1.0
0.6
Tc=130°C
IM
5
t(s)
1E-2
Tc=75°C
Tc=100°C
10
Tc=135°C
δ=0.5
20
δ = 0.2
T
Single pulse
δ=tp/T
tp(s)
0.0
1E-3
1E-2
tp
1E-1
T
δ = 0.1
0.2
tp(s)
Single pulse
1E+0
Fig. 5: Reverse leakage current versus reverse
voltage applied (typical values, per diode).
0.0
1E-3
1E-2
δ=tp/T
1E-1
1E+0
tp
1E+1
Fig. 6: Junction capacitance versus reverse
voltage applied (typical values, per diode).
C(pF)
IR(A)
500
1E-2
F=1MHz
Tj=25°C
Tj=150°C
Tj=125°C
1E-3
100
Tj=100°C
1E-4
Tj=75°C
VR(V)
1E-5
0
5
10
15
20
25
30
35
40
10
VR(V)
1
2
5
10
20
50
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STPS640CT/CF/CB
Fig. 7: Forward voltagedrop versus forwardcurrent
(maximum values, per diode).
10.0
Fig. 8: Thermal resistance junctionto ambient versus
copper surface under tab (Epoxy printed circuit
board FR4, copper thickness: 35µm).
Rth(j-a) (°C/W)
IFM(A)
80
70
60
Typical values
Tj=150°C
50
1.0
Tj=125°C
40
30
20
VFM(V)
0.1
0.0
0.1
0.2
0.3
0.4
0.5
0.6
10
0.7
0.8
0
0.9 1.0
S(Cu) (cm )
0
4
8
12
16
20
24
28
32
36
PACKAGE MECHANICAL DATA
TO-220AB
DIMENSIONS
A
H2
Dia
C
L5
L7
L6
L2
F2
F1
D
L9
L4
F
M
G1
E
G
4/6
REF.
Millimeters
Min.
Max.
Inches
Min.
Max.
A
C
D
E
F
F1
F2
G
G1
H2
L2
L4
L5
L6
L7
L9
M
Diam.
4.40
4.60
1.23
1.32
2.40
2.72
0.49
0.70
0.61
0.88
1.14
1.70
1.14
1.70
4.95
5.15
2.40
2.70
10
10.40
16.4 typ.
13
14
2.65
2.95
15.25
15.75
6.20
6.60
3.50
3.93
2.6 typ.
3.75
3.85
0.173
0.181
0.048
0.051
0.094
0.107
0.019
0.027
0.024
0.034
0.044
0.066
0.044
0.066
0.194
0.202
0.094
0.106
0.393
0.409
0.645 typ.
0.511
0.551
0.104
0.116
0.600
0.620
0.244
0.259
0.137
0.154
0.102 typ.
0.147
0.151
40
STPS640CT/CF/CB
PACKAGE MECHANICAL DATA
DPAK
DIMENSIONS
REF.
Millimeters
Min.
A
A1
A2
B
B2
C
C2
D
E
G
H
L2
L4
V2
Max
2.20
2.40
0.90
1.10
0.03
0.23
0.64
0.90
5.20
5.40
0.45
0.60
0.48
0.60
6.00
6.20
6.40
6.60
4.40
4.60
9.35
10.10
0.80 typ.
0.60
1.00
0°
8°
Inches
Min.
Max.
0.086
0.094
0.035
0.043
0.001
0.009
0.025
0.035
0.204
0.212
0.017
0.023
0.018
0.023
0.236
0.244
0.251
0.259
0.173
0.181
0.368
0.397
0.031 typ.
0.023
0.039
0°
8°
FOOTPRINT DIMENSIONS (in millimeters)
6.7
6.7
3
3
1.6
1.6
2.3
2.3
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STPS640CT/CF/CB
PACKAGE MECHANICAL DATA
ISOWATT220AB
DIMENSIONS
REF.
Millimeters
Min.
A
B
D
E
F
F1
F2
G
G1
H
L2
L3
L4
L6
L7
Diam
Max.
4.40
4.60
2.50
2.70
2.50
2.75
0.40
0.70
0.75
1.00
1.15
1.70
1.15
1.70
4.95
5.20
2.40
2.70
10.00 10.40
16.00 typ.
28.60 30.60
9.80
10.60
15.90 16.40
9.00
9.30
3.00
3.20
Inches
Min.
Max.
0.173 0.181
0.098 0.106
0.098 0.108
0.016 0.028
0.030 0.039
0.045 0.067
0.045 0.067
0.195 0.205
0.094 0.106
0.394 0.409
0.630 typ.
1.125 1.205
0.386 0.417
0.626 0.646
0.354 0.366
0.118 0.126
Ordering type
Marking
Package
Weight
Base qty
Delivery mode
STPS640CT
STPS640CT
TO-220AB
2.20g
50
Tube
STPS640CB
S640C
DPAK
0.30g
75
Tube
STPS640CB-TR
S640C
DPAK
0.30g
2500
Tape and reel
STPS640CF
STPS640CF
ISOWATT220AB
2.08g
50
Tube
Epoxy meets UL94,V0
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of
use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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 1999 STMicroelectronics - Printed in Italy - All rights reserved.
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