STTH108A

STTH108 High voltage ultrafast rectifier Features ■ Low forward voltage drop ■ High reliability ■ High surge current capability ■ Soft switching for reduced EMI disturbances ■ Planar technology K Description The STTH108, which is using ST ultrafast high voltage planar technology, is specially suited for free-wheeling, clamping, snubbering, demagnetization in power supplies and other power switching applications. October 2009 A A K SMA (JEDEC DO-214AC) STTH108A Table 1. Doc ID 9342 Rev 3 DO-41 STTH108 Device summary Symbol Value IF(AV) 1A VRRM 800 V Tj (max) 175 °C VF(max) 1.25 V 1/6 www.st.com 6 Characteristics 1 STTH108 Characteristics Table 2. Absolute ratings (limiting values) Symbol Parameter Value Unit VRRM Repetitive peak reverse voltage 800 V V(RMS) Voltage rms 560 V 1 A IF(AV) Average forward current IFSM Forward Surge current Tstg Storage temperature range Tj Table 3. DO-41 TL = 130 °C δ = 0.5 SMA 20 DO-41 25 t = 8.3 ms A -50 to + 175 °C 175 °C Value Unit Thermal resistance Parameter Rth(j-l) Junction to lead Rth(j-a) Junction to ambient Symbol TL = 110 °C δ = 0.5 Maximum operating junction temperature Symbol Table 4. SMA SMA 30 Lead length = 10 mm DO-41 45 Lead length = 10 mm DO-41 110 °C/W Static electrical characteristics Parameter Tests conditions Tj = 25 °C IR Reverse leakage current VF Forward voltage drop Tj = 125 °C Tj = 25 °C Tj = 125 °C Min. Typ. Max. Unit 5 VR = 800 V µA 1 50 1.65 IF = 1 A V 0.89 1.25 Typ. Max. Unit To evaluate the conduction losses use the following equation: P = 1.05 x IF(AV) + 0.20 IF2(RMS) Table 5. Symbol Parameter Tests conditions Min. trr Reverse recovery time Tj = 25 °C IF = 0.5 A, Irr = 0.25 A IR = 1 A 75 ns tfr Forward recovery time Tj = 25 °C IF = 1 A, dIF/dt = 50 A/ms VFR = 1.1 x VFmax 200 ns IF = 1 A, dIF/dt = 50 A/ms 12 V VFP 2/6 Dynamic electrical characteristics Forward T = 25 °C recovery voltage j Doc ID 9342 Rev 3 STTH108 Characteristics Figure 1. Conduction losses versus average Figure 2. current Forward voltage drop versus forward current IFM(A) P(W) 1.6 δ = 0.1 δ = 0.05 1.4 100.0 δ = 0.2 δ = 0.5 Tj=150°C (maximum values) 1.2 δ=1 Tj=150°C (typical values) 10.0 1.0 0.8 Tj=25°C (maximum values) 0.6 1.0 T 0.4 0.2 IF(AV)(A) δ=tp/T VFM(V) tp 0.0 0.1 0.0 0.1 Figure 3. 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 0.0 Relative variation of thermal Figure 4. impedance junction ambient versus pulse duration (DO-41) Zth(j-c)/Rth(j-c) 0.9 0.9 0.8 0.8 0.7 0.7 2.0 2.5 3.0 3.5 4.0 4.5 Relative variation of thermal impedance junction ambient versus pulse duration (epoxy FR4) (SMA) δ = 0.5 0.6 δ = 0.5 0.5 0.5 0.4 0.4 δ = 0.2 0.3 δ = 0.2 0.2 1.5 1.0 epoxy FR4, leads = 10 mm 0.3 1.0 Zth(j-c)/Rth(j-c) 1.0 0.6 0.5 T δ = 0.1 0.2 T δ = 0.1 0.1 tp(s) Single pulse δ=tp/T 0.0 1.E-01 1.E+00 Figure 5. 1.E+01 0.1 tp tp(s) Single pulse δ=tp/T 0.0 1.E+02 1.E+03 Thermal resistance junction to ambient versus copper surface under each lead (DO-41) 1.E-01 1.E+00 Figure 6. 1.E+01 tp 1.E+02 1.E+03 Thermal resistance junction to ambient versus copper surface under each lead (SMA) Rth(j-a)(°C/W) Rth(j-a)(°C/W) 140 120 epoxy printed circuit board FR4, copper thickness: 35 µm 110 epoxy printed circuit board FR4, copper thickness: 35 µm 130 120 100 110 90 100 80 90 70 80 60 70 50 60 50 40 40 30 30 20 20 S(cm²) 10 S(cm²) 10 0 0 0 1 2 3 4 5 6 7 8 9 10 0.0 Doc ID 9342 Rev 3 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 3/6 Package information 2 STTH108 Package information ● Epoxy meets UL 94, V0 ● Band indicates cathode ● Bending method (DO-41): see Application note AN1471 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 6. SMA dimensions Dimensions Ref. E1 D E A1 A2 C L Figure 7. b Millimeters Inches Min. Max. Min. Max. A1 1.90 2.45 0.075 0.094 A2 0.05 0.20 0.002 0.008 b 1.25 1.65 0.049 0.065 c 0.15 0.40 0.006 0.016 D 2.25 2.90 0.089 0.114 E 4.80 5.35 0.189 0.211 E1 3.95 4.60 0.156 0.181 L 0.75 1.50 0.030 0.059 Footprint (dimensions in mm) 2.63 1.4 1.4 1.64 5.43 Table 7. DO-41 (plastic) package dimensions Dimensions Ref. 4/6 A C Doc ID 9342 Rev 3 Inches Min. Max. Min. Max. A 4.07 5.20 0.160 0.205 2.71 0.080 0.107 ØD ØB C Millimeters B 2.04 C 25.4 D 0.71 1 0.86 0.028 0.034 STTH108 3 Ordering information Ordering information Table 8. 4 Ordering information Order code Marking Package Weight Base qty Delivery mode STTH108 STTH108 DO-41 0.34 g 2000 Ammopack STTH108A H08 SMA 0.068 g 5000 Tape and reel STTH108RL STTH108 DO-41 0.34 g 5000 Tape and reel Revision history Table 9. Document revision history Date Revision Changes Jan-2003 2 Last update. 30-Sep-2009 3 Updated table 7 package dimensions. Doc ID 9342 Rev 3 5/6 STTH108 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2009 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 6/6 Doc ID 9342 Rev 3