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T1133 , TRIANGULAR TYPE
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STPS20L45CFP-STPS20L45CT
LOW DROP POWER SCHOTTKY RECTIFIER
STPS20L45CF/CW/CT/CFP/CGJanuary 2002-Ed:2C
LOW DROP POWER SCHOTTKY RECTIFIER
Dual center tap Schottky rectifiers designedfor
high frequency switched mode power suppliesandtoDC converters.
These devicesare intendedfor useinlow voltage,
high frequency inverters, free-wheeling and
polarity protection applications.
DESCRIPTION Low forward voltage drop meaning very small
conduction losses Low switching losses allowing high frequency
operation Insulated package: ISOWATT220AB, TO-220FPAB
Insulating voltage= 2000VDC
Capacitance= 12pF
FEATURES AND BENEFITS
ABSOLUTE RATINGS (limiting values,per diode)
MAJOR PRODUCTS CHARACTERISTICS dPtot
dTj Rthja< − thermal runaway conditionfora diodeonits own heatsink
STPS20L45CF/CW/CT/CFP/CGPulsetest:*tp= 380μs,δ <2% evaluatethe conduction lossesusethe following equation:
P=0.28xIF(AV)+ 0.022IF2 (RMS)
STATIC ELECTRICAL CHARACTERISTICS (per diode)
THERMAL RESISTANCES
PF(av)(W)
Fig.1: Average forward power dissipation versus
average forward current (per diode).
IF(av)(A)
Fig.2: Average forward current versus ambient
temperature(δ= 0.5,per diode).
Whenthe diodes1 and2are used simultaneously: Tj(diode1)= P(diode1)x Rth(j-c)(Per diode)+ P(diode2)x Rth(c)
STPS20L45CF/CW/CT/CFP/CG1E-3 1E-2 1E-1 1E+00.0
Zth(j-c)/Rth(j-c)
Fig. 4-1: Relative variationof thermal impedance
junctionto case versus pulse duration (TO-220AB,
TO-247,D2 PAK). 5 10 15 20 25 30 35 40 451E-3
1E-2
1E-1
1E+0
1E+1
1E+22E+2
IR(mA)
Fig.5: Reverse leakage current versus reverse
voltage applied (typical values,per diode). 5 10 20 50100
C(pF)
Fig.6: Junction capacitance versus reverse
voltage applied (typical values,per diode).
1E-3 1E-2 1E-1 1E+0 1E+10.0
Zth(j-c)/Rth(j-c)
Fig. 4-2: Relative variationof thermal impedance
junction to case versus pulse duration
(ISOWATT220AB, TO-220FPAB).
1E-3 1E-2 1E-1 1E+00
IM(A)
Fig. 3-2: Non repetitive surge peak forward
current versus overload duration (maximum
values, per diode, ISOWATT220AB,
TO-220FPAB).
1E-3 1E-2 1E-1 1E+00
140
IM(A)
Fig. 3-1: Non repetitive surge peak forward
current versus overload duration (maximum
values, per diode, TO-220AB, TO-247,2 PAK).
