SGS Thomson Microelectronics STPS1045D, STPS1045F Datasheet
®
MAIN PRODUCT CHARACTERISTICS
STPS1045D/F
POWER SCHO TTKY REC TIFIER
I
F(AV)
V
RRM
V
F
10 A
45 V
0.57 V
FEATURES AND BENE FITS
VERY SMALL CONDUCTION LOSSES
NEGLIGIBLE SWITCHING LOSSE S
EXTREMELY FAST SWITCHING
LOW FORWARD V O LTAGE DROP
INSULATED PACKAGE:ISO WATT220AC
Insulating voltage = 2000V DC
Capacitance = 12pF
DESCRIPTION
Single chip Schottky rectifier suited for Switch
Mode Power Supply and high frequency DC to DC
converters.
This device is intended for use in low voltage, high
frequency inverters, free wheeling and polarity protection applications.
K
TO-220AC
STPS1045D
A
A
K
ISOWATT220AC
STPS1045F
A
K
ABSOLUTE RATINGS
(limiting values)
Symbol Parameter Value Unit
V
RRM
I
F(RMS)
I
F(AV)
I
FSM
Repetitive peak reverse voltage 45 V
RMS forward current 30 A
Average forward current
δ
= 0.5
Surge non repetitive forward current tp = 10 ms
TO-220AC Tc = 150°C 10 A
ISOWATT220AC Tc = 145°C
180 A
Sinusoidal
I
RRM
Repetitive peak reverse current tp = 2 µs
1A
F = 1KHz
Tstg Storage temperature range - 65 to + 175
Tj Maximum junction temperature 175 ° C
dV/dt Critical rate of rise of reverse voltage 10000 V /µs
September 1999 - Ed: 3B
°
C
1/5
STPS1045D/F
THERMAL RE SISTA NC ES
Symbol Parameter Value Unit
R
th (j-c)
Junction to case TO-220AC 2.2
°
ISOWATT220AC 4.5
STATIC ELECTRICAL CHARACTER ISTICS
Symbol Parameter Tests Conditions Min. Typ. Max. Unit
* Reverse leakage current Tj = 25°CV
I
R
= V
R
RRM
100
Tj = 125°C15mA
** Forward voltage drop Tj = 25°CI
V
F
Tj = 125°CI
Tj = 125°CI
Pulse test : * tp = 5 ms,δ < 2 %
** tp = 380 µs, δ< 2%
= 15 A 0.84 V
F
= 15 A 0.72
F
= 7.5 A 0.57
F
To evaluate the conduction losses use the following equation :
P = 0.42 x I
F(AV)
+ 0.015 I
F2(RMS)
C/W
µ
A
Fig. 1:
Average forward power dissipation versus
average forward current.
PF(av)(W)
8
7
6
5
4
3
2
1
0
0123456789101112
δ = 0.05
δ = 0.1
IF(av) (A)
δ = 0.2
δ = 0.5
δ
=tp/T
δ = 1
T
tp
Fig. 2:
Average current versus ambient tempera-
ture (δ : 0.5).
IF(av)(A)
12
10
8
6
4
2
0
0 25 50 75 100 125 150 175
δ
=tp/T
T
tp
Rth(j-a)=Rth(j-c)
Rth(j-a)=15°C/W
Tamb(°C)
TO220AC
ISOWATT220
2/5
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