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(R)
STPS4045CP/CW
POWER SCHOTTKY RECTIFIERS
MAIN PRODUCTS CHARACTERISTICS IF(av) VRRM Tj (max) VF (max) FEATURES AND BENEFITS VERY SMALL CONDUCTION LOSSES NEGLIGIBLE SWITCHING LOSSES EXTREMELY FAST SWITCHING LOW THERMAL RESISTANCE DESCRIPTION Dual center tap Schottky rectifier suited for switchmode power supply and high frequency DC to DC converters. Packaged either in SOT-93 or TO-247 this device is intended for use in low voltage, high frequency inverters, free wheeling and polarity protection applications. ABSOLUTE RATINGS (limiting values, per diode) Symbol VRRM IF(RMS) IF(AV) IFSM IRRM IRSM Tstg Tj dV/dt *: Parameter Repetitive peak reverse voltage RMS forward current Average forward current Surge non repetitive forward current Repetitive Peak reverse current Non repetitive peak reverse current Tc = 150C = 0.5 Per diode Per device Value 45 30 20 40 220 1 3 - 65 to + 175 175 10000 Unit V A A A A A C C V/s SOT-93 STPS4045CP TO-247 STPS4045CW 2 x 20 A 45 V 175 C 0.63 V
A1 K A2
A2 A1 K
A2 K A1
tp = 10 ms sinusoidal tp = 2 s square F = 1kHz tp = 100 s square
Storage temperature range Maximum operating junction temperature * Critical rate of rise of reverse voltage
1 dPtot thermal runaway condition for a diode on its own heatsink < Rth(j-a) dTj
June 1999 - Ed: 3B
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STPS4045CP/CW
THERMAL RESISTANCES Symbol Rth (j-c) Junction to case Rth (c)
Parameter Per diode total Coupling
Value 1.5 0.8 0.1
Unit C/W
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 * Parameter Reverse leakage current Forward voltage drop Tests Conditions Tj = 25C Tj = 125C Tj = 125C Tj = 25C Tj = 125C Pulse test : * tp = 380 s, < 2% To evaluate the conduction losses use the following equation : P = 0.46 x IF(AV) + 0.0085 IF2(RMS) IF = 20 A IF = 40 A IF = 40 A 0.7 VR = VRRM 11 0.56 Min. Typ. Max. 200 40 0.63 0.94 0.83 Unit A mA V
VF *
Fig. 1: Average forward power dissipation versus average forward current (per diode).
Fig. 2: Average current versus ambient temperature (per diode).
PF(av)(W) 18 16 14 12 10 8 6 4 2 0
= 0.2 = 0.1 = 0.05 = 1 = 0.5
IF(av)(A) 22 20 18 16 14 12 10 8 6 4 2 0
Rth(j-a)=Rth(j-c)
Rth(j-a)=15C/W
T
T
IF(av) (A) 0 2 4 6 8
=tp/T
tp
=tp/T
tp
Tamb(C) 50 75 100 125 150 175
10 12 14 16 18 20 22 24 26
0
25
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STPS4045CP/CW
Fig. 3: Nonrepetitivesurgepeakforwardcurrentversus overloadduration(maximum values)(per diode). Fig. 4: Relative variation of thermal transient impedancejunction to case versus pulse duration.
IM(A) 200 180 160 140 120 100 80 60 IM 40 20 0 1E-3
Zth(j-c)/Rth(j-c) 1.0 0.8
Tc=75C Tc=100C Tc=125C
0.6 0.4
= 0.5
= 0.2
T
0.2
t
= 0.1 Single pulse
=0.5
t(s) 1E-2 1E-1 1E+0
tp(s) 1E-3 1E-2
=tp/T
tp
0.0 1E-4
1E-1
1E+0
Fig. 5: Reverse leakage current versus reverse voltage applied (typical values) (per diode).
Fig. 6: Junction capacitance versus reverse voltage applied (typical values) (per diode).
IR(A) 5E+4
Tj=150C
C(nF) 5.0
Tj=125C Tj=100C Tj=75C
1E+4 1E+3 1E+2 1E+1 1E+0
1.0
Tj=50C
Tj=25C
VR(V) 0 5 10 15 20 25 30 35 40 45
VR(V) 0.1 1 2 5 10 20 50
Fig. 7: Forward voltage drop versus forward current (maximum values) (per diode).
IFM(A) 200 100
Typical values Tj=125C Tj=25C
Tj=125C
10
VFM(V) 1 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
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STPS4045CP/CW
PACKAGE MECHANICAL DATA SOT-93 DIMENSIONS REF. A C D D1 E F F3 F4 G H L L2 L3 L5 L6 O Millimeters Min. Typ. Max. 4.70 4.90 1.90 2.10 2.50 2.00 0.50 0.78 1.10 1.30 1.75 2.10 10.80 11.10 14.70 15.20 12.20 16.20 18.0 3.95 4.15 31.00 4.00 4.10 Inches Min. Typ. Max. 1.185 0.193 0.075 0.083 0.098 0.078 0.020 0.031 0.043 0.051 0.069 0.083 0.425 0.437 0.279 0.598 0.480 0.638 0.709 0.156 0.163 1.220 0.157 0.161
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STPS4045CP/CW
PACKAGE MECHANICAL DATA TO-247 DIMENSIONS
V
REF.
Millimeters
Inches Typ. Max. 0.203 0.102 0.031 0.055 0.118 0.078 0.094 0.133 0.429 0.620 0.793 0.169 0.728 0.582 1.362 0.216 0.118 5 60 0.143
V
Dia.
H
A
L5
L L2 L4 F2 F3 V2 F(x3) G = = M E F4 L3
F1
L1 D
Min. Typ. Max. Min. A 4.85 5.15 0.191 D 2.20 2.60 0.086 E 0.40 0.80 0.015 F 1.00 1.40 0.039 F1 3.00 F2 2.00 F3 2.00 2.40 0.078 F4 3.00 3.40 0.118 G 10.90 H 15.45 15.75 0.608 L 19.85 20.15 0.781 L1 3.70 4.30 0.145 L2 18.50 L3 14.20 14.80 0.559 L4 34.60 L5 5.50 M 2.00 3.00 0.078 V 5 V2 60 Dia. 3.55 3.65 0.139
Type STPS4045CP STPS4045CW
Marking STPS4045CP STPS4045CW
Package SOT-93 TO-247
Weight 3.97 g. 4.46 g.
Base qty 30 30
Delivery mode Tube Tube
Cooling method: by conduction (C) Recommended torque value: 0.8 N.m Maximum torque value: 1.0 N.m. 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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