STPS50U100CT

STPS50U100C Ultralow forward voltage power Schottky rectifier Features A1 ■ ■ ■ ■ Ultralow forward voltage drop High current capability High frequency operation ECOPACK®2 compliant components K A2 A2 Description The STPS50U100C is a dual power Schottky diode rectifier, suited for high frequency switch mode power supply. Featuring an ultralow forward voltage drop, this device, packaged in TO-220AB and I²PAK, is intended to be used in notebook, game station and desktop adaptors as well as server SMPS. It has been especially designed to help power supply manufacturers meet the recently introduced worldwide efficiency standards. A1 K A1 K A2 TO-220AB STPS50U100CT I2PAK STPS50U100CR Table 1. Device summary Symbol IF(AV) VRRM Value 2 x 25 A 100 V 0.64 V 150 °C VF(TYP) @ 25 A @ 125 °C Tj (max) November 2009 Doc ID 16603 Rev 1 1/8 www.st.com 8 Characteristics STPS50U100C 1 Table 2. Symbol VRRM IF(RMS) IF(AV) IFSM Tstg Tj 1. Characteristics Absolute ratings (limiting values per diode at 25 °C, unless otherwise specified) Parameter Repetitive peak reverse voltage Forward rms current Average forward current, δ = 0.5 Surge non repetitive forward current Storage temperature range Maximum operating junction temperature(1) TC = 120 °C Per diode TC = 105 °C Per device tp = 10 ms, half sine-wave Value 100 50 25 50 250 -65 to + 150 150 Unit V A A A °C °C 1 dPtot < condition to avoid thermal runaway for a diode on its own heatsink Rth(j-a) dTj Table 3. Symbol Rth (j-c) Rth (c) Thermal resistance Parameter Junction to case Coupling Per diode Per device Value 1.3 0.9 0.45 Unit °C/W °C/W When the diodes 1 and 2 are used simultaneously: ΔTj(diode 1) = P(diode1) x Rth(j-c)(Per diode) + P(diode 2) x Rth(c) Table 4. Symbol Static electrical characteristics Parameter Tests conditions Tj = 25 °C VR = 70 V Min. VR = VRRM IF = 5 A IF = 15 A IF = 25 A Typ. 15 10 30 15 0.48 0.38 0.58 0.54 0.67 0.64 Max. 200 40 V 0.73 0.7 Unit µA mA µA mA IR Reverse leakage current Tj = 125 °C Tj = 25 °C Tj = 125 °C Tj = 25 °C Tj = 125 °C VF Forward voltage drop Tj = 25 °C Tj = 125 °C Tj = 25 °C Tj = 125 °C To evaluate the conduction losses use the following equation: P = 0.475 x IF(AV) + 0.009 IF2(RMS) 2/8 Doc ID 16603 Rev 1 STPS50U100C Characteristics Figure 1. Average forward power dissipation Figure 2. versus average forward current (per diode) 250 Non repetitive surge peak forward current versus overload duration (maximum values, per diode) 28 24 20 16 12 8 PF(AV)(W) δ = 0.05 δ = 0.1 δ = 0.2 δ = 0.5 IM(A) δ=1 225 200 175 150 125 100 75 Tc = 25 °C Tc = 75 °C Tc = 125 °C t δ = 0.5 1.E-02 1.E-01 T 50 25 4 δ = tp / T IM 0 0 5 10 15 20 tp 25 IF(AV)(A) 30 35 0 1.E-03 t(s) 1.E+00 Figure 3. Reverse leakage current versus reverse voltage applied (typical values, per diode) Tj = 150 °C Figure 4. Average forward current versus ambient temperature (δ = 0.5, per diode) Rth(j-a) = Rth(j-c) 1.E+02 IR(mA) 30 25 20 15 10 IF(AV)(A) 1.E+01 Tj = 125 °C Tj = 100 °C 1.E+00 Tj = 75 °C 1.E-01 Tj = 50 °C Tj = 25 °C 5 1.E-02 T δ = tp / T 1.E-03 0 10 20 30 40 50 60 70 80 VR(V) 0 90 100 0 tp 25 50 75 Tamb(°C) 100 125 150 Figure 5. Relative variation of thermal Figure 6. impedance junction to case versus pulse duration 10000 Junction capacitance versus reverse voltage applied (typical values, per diode) F = 1 MHz Vosc = 30 mVRMS Tj = 25 °C 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Zth(j-c)/Rth(j-c) C(pF) 1000 Single pulse 0.0 1.E-04 tp(s) 1.E-03 1.E-02 1.E-01 1.E+00 100 1 10 VR(V) 100 Doc ID 16603 Rev 1 3/8 Application information Figure 7. Forward voltage drop versus forward current (per diode) 50 45 40 35 30 25 20 15 10 5 0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 STPS50U100C IFM(A) Tj = 125 °C (Maximum value) Tj = 125 °C (Typical value) Tj = 25 °C (Maximum value) VFM(V) 0.9 1.0 2 Application information It is mandatory to ensure a peak reverse voltage below the VRRM absolute rating. Therefore, it is recommended to use a RC clamping snubber circuit in parallel with the STPS50U100C device. Figure 8. Application schematic R C DC/DC input DC/DC output STPS50U100C 4/8 Doc ID 16603 Rev 1 STPS50U100C Package information 3 Package information ● ● ● Epoxy meets UL94,V0 Cooling method: by conduction (C) Recommended torque value: 0.4 to 0.6 N·m In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Table 5. TO-220AB dimensions Dimensions Ref. Millimeters Min. A C H2 Dia L5 L7 L6 L2 F2 F1 L9 L4 F G1 G M E D C A Inches Min. 0.173 0.048 0.094 0.019 0.024 0.044 0.044 0.194 0.094 0.393 Max. 0.181 0.051 0.107 0.027 0.034 0.066 0.066 0.202 0.106 0.409 Max. 4.60 1.32 2.72 0.70 0.88 1.70 1.70 5.15 2.70 10.40 4.40 1.23 2.40 0.49 0.61 1.14 1.14 4.95 2.40 10 D E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 M Diam. 16.4 typ. 13 2.65 15.25 6.20 3.50 14 2.95 15.75 6.60 3.93 0.645 typ. 0.511 0.104 0.600 0.244 0.137 0.551 0.116 0.620 0.259 0.154 2.6 typ. 3.75 3.85 0.102 typ. 0.147 0.151 Doc ID 16603 Rev 1 5/8 Package information Table 6. I2PAK dimensions STPS50U100C Dimensions Ref. Millimeters Min. A E L2 c2 Inches Min. 0.173 0.094 0.024 0.044 0.019 0.048 0.352 0.094 0.195 0.394 0.512 0.138 0.050 Max. 0.181 0.107 0.035 0.067 0.028 0.052 0.368 0.106 0.203 0.409 0.551 0.155 0.055 Max. 4.60 2.72 0.88 1.70 0.70 1.32 9.35 2.70 5.15 10.40 14 3.93 1.40 A A1 b b1 4.40 2.40 0.61 1.14 0.49 1.23 8.95 2.40 4.95 10 13 3.50 1.27 D c c2 L1 L b1 A1 D e e1 E b e e1 c L L1 L2 6/8 Doc ID 16603 Rev 1 STPS50U100C Ordering information 4 Ordering information Table 7. Ordering information Marking STPS50U100C STPS50U100C Package TO-220AB I PAK 2 Order code STPS50U100CT STPS50U100CR Weight 2.23 g 1.49 g Base qty 50 50 Delivery mode Tube Tube 5 Revision history Table 8. Date 17-Nov-2009 Document revision history Revision 1 First release. Changes Doc ID 16603 Rev 1 7/8 STPS50U100C Please Read Carefully: Information in this document is provided solely in connection with ST products. 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