STPS40L15C Low drop OR-ing power Schottky diode Features Very low forward voltage drop for less power dissipation and reduced heatsink size A1 Reverse voltage suited to OR-ing of 3 V, 5 V and 12 V rails A2 Avalanche capability specified K K Description Dual center tap schottky rectifier packaged in TO-220AB and TO-247, this device is especially intended for use as OR-ing diode in fault tolerant power supply equipments. A1 A2 A2 K A1 TO-220AB STPS40L15CT Table 1. July 2011 K Doc ID 4926 Rev 6 TO-247 STPS40L15CW Device summary Symbol Value IF(AV) 2x20 A VRRM 15 V Tj (max) 125 C VF (max) 0.33 V 1/8 www.st.com 8 Characteristics 1 STPS40L15C Characteristics Table 2. Absolute ratings (limiting values, per diode) Symbol Parameter Unit VRRM Repetitive peak reverse voltage 15 V IF(RMS) Forward current rms 30 A Total 40 Per diode 20 Average forward current IFSM Surge non repetitive forward current tp = 10 m, Sinusoidal IRRM Peak repetitive reverse current tp = 2 s, F= 1 kHz IRSM Non repetitive peak reverse current tp = 100 s PARM Repetitive peak avalanche power < 1 -------------------------Rth ( j - a ) 2 A 3 A 13140 W -65 to + 150 C 125 C 10000 V/s tp = 1s, Tj = 25 C condition to avoid thermal runaway for a diode on its own heatsink Thermal resistances Symbol Parameter Rth(j-c) Junction to case Rth (c) Coupling Table 4. Symbol VF(1) A Critical rate of rise of reverse voltage Table 3. IR(1) 310 Maximum operating junction temperature (1) dV/dt dPtot --------------dTj A Storage temperature range Tj 1. Tcase = 140 C =1 IF(AV) Tstg Value Per diode 1.6 Total 0.85 Unit C/W C/W 0.1 Static electrical characteristics (Per diode) Parameter Tests conditions Tj = 25 C Reverse leakage current Tj = 100 C Forward voltage drop Min. Typ. Max. Unit 6 VR = VRRM mA 200 500 Tj = 25 C IF = 19 A 0.41 Tj = 25 C IF = 40 A 0.52 Tj = 125 C IF = 19 A 0.28 0.33 Tj = 125 C IF = 40 A 0.42 0.50 1. Pulse test : tp = 380 s, < 2% To evaluate the conduction losses use the following equation : P = 0.18 x IF(AV) + 0.008 IF2(RMS) 2/8 Value Doc ID 4926 Rev 6 V STPS40L15C Figure 1. 8 Characteristics Average forward power dissipation Figure 2. versus average forward current (per diode) IF(av)(A) PF(av)(W) = 0.1 7 = 0.05 = 0.5 = 0.2 6 =1 5 4 3 T 2 1 0 =tp/T IF(av) (A) 0 2 4 6 Figure 3. 1 Average forward current versus ambient temperature ( = 1, per diode) 8 10 12 14 16 18 tp 20 22 Normalized avalanche power derating versus pulse duration 22 20 18 16 14 12 10 8 6 4 2 0 Rth(j-a)=Rth(j-c) Rth(j-a)=15C/W T =tp/T 0 25 Figure 4. PARM(tp) PARM(1s) 1.2 tp Tamb(C) 50 75 100 125 150 Normalized avalanche power derating versus junction temperature PARM(Tj) PARM(25 C) 1 0.8 0.1 0.6 0.4 0.01 0.2 tp(s) 0.001 0.01 0.1 Figure 5. 1 10 100 1000 Non repetitive surge peak forward current versus overload duration (maximum values per diode) Tj(C) 0 25 50 Figure 6. 75 100 150 125 Relative variation of thermal impedance junction to case versus pulse duration (per diode) Zth(j-c)/Rth(j-c) IM(A) 250 1.0 200 0.8 150 0.6 = 0.5 Tc=50C 100 Tc=75C 0.4 = 0.2 T IM 50 Tc=110C t =0.5 0 1E-3 0.2 = 0.1 tp (s) t(s) Single pulse 1E-2 1E-1 1E+0 0.0 1.0E-4 Doc ID 4926 Rev 6 1.0E-3 1.0E-2 =tp/T 1.0E-1 tp 1.0E+0 3/8 Characteristics Figure 7. 5E+2 STPS40L15C Reverse leakage current versus reverse voltage applied (typical values per diode) Figure 8. IR(mA) C(nF) 5.0 F=1MHz Tj=25C Tj=100C 1E+2 1.0 1E+1 Tj=25C 1E+0 1E-1 Junction capacitance versus reverse voltage applied (typical values per diode) VR(V) VR(V) 0 2 Figure 9. 4 6 8 10 12 14 16 Forward voltage drop versus forward current (typical values per diode) 0.1 1 5 10 20 Figure 10. Forward voltage drop versus forward current (typical maximum per diode) IFM(A) 200 200.0 100.0 2 IFM(A) Tj=100C 100 Tj=150C Tj=25C 10.0 Tj=125C 10 Tj=75C 1.0 VFM(V) 0.1 0.0 4/8 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1 VFM(V) 0 Doc ID 4926 Rev 6 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 STPS40L15C 2 Package information Package information Epoxy meets UL94,V0 Cooling method: by conduction (C) Recommended torque values for: TO-220AB 0.4 to 0.6 N*m Recommended torque values for: TO-247 0.9 to 1.2 N*m In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK(R) packages, depending on their level of environmental compliance. ECOPACK(R) specifications, grade definitions and product status are available at: www.st.com. ECOPACK(R) is an ST trademark. Table 5. TO-220AB dimensions Dimensions Ref. A H2 Dia C L5 L7 Millimeters Inches Min. Max. Min. Max. A 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.106 D 2.40 2.72 0.094 0.009 E 0.49 0.70 0.019 0.037 F 0.61 0.88 0.024 0.067 F1 1.14 1.70 0.044 0.024 F2 1.14 1.70 0.044 0.054 G 4.95 5.15 0.194 0.368 G1 2.40 2.70 0.094 0.409 H2 10 10.40 0.393 0.208 L6 L2 F2 F1 D L9 L4 F L2 M G1 E G 0.645 typ L4 13 14 0.511 0.055 L5 2.65 2.95 0.104 0.069 L6 15.25 15.75 0.600 0.126 L7 6.20 6.60 0.244 L9 3.50 3.93 0.137 M Diam. Doc ID 4926 Rev 6 16.4 typ 2.6 typ. 3.75 3.85 0.102 typ. 0.147 0.151 5/8 Package information STPS40L15C Table 6. TO-247 dimensions Dimensions Ref. Millimeters Min. Typ. Inches Max. Min. Typ. Max. A 4.85 5.15 0.191 0.203 D 2.20 2.60 0.086 0.031 E 0.40 0.80 0.015 0.009 F 1.00 1.40 0.039 V Dia. V A H L5 F1 3.00 0.118 F2 2.00 0.078 F3 2.00 2.40 0.078 0.094 F4 3.00 3.40 0.118 0.133 G L 0.055 10.90 0.429 H 15.45 15.75 0.608 0.620 L 19.85 20.15 0.781 0.793 L1 3.70 4.30 0.169 L2 L4 F2 F1 L1 F3 V2 F4 D L3 L2 L3 F(x3) M G = = E 18.50 14.20 0.728 14.80 0.559 0.582 L4 34.60 1.362 L5 5.50 0.216 M 2.00 3.00 0.078 0.118 V 5 5 V2 60 60 Dia 6/8 0.145 Doc ID 4926 Rev 6 3.55 3.65 0.139 0.143 STPS40L15C 3 Ordering information Ordering information Table 7. Ordering information Order code Marking STPS40L15CW STPS40L15CW STPS40L15CT 4 STPS40L15CT Package Weight Base qty Delivery mode TO-247 4.4 g 30 Tube TO-220AB 2.2 g 50 Tube Revision history Table 8. Document revision history Date Revision July-2003 5A 18-Jul-2011 6 Changes Previous edition. Added cathode indicator K to illustration for TO-220AB. Doc ID 4926 Rev 6 7/8 STPS40L15C Please Read Carefully: Information in this document is provided solely in connection with ST products. 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