LNBTVSx-22xx Lightning protection for LNB power supply Features ■ 3 kV, 4 kV and 6 kV protection (8/20 µs) ■ Axial & SMD package ■ Unidirectional and low VF (VF = 1.2 V at IF = 3 A) ■ Low clamping factor ■ Fast response time A Available in axial, SMB and SMC packages, this device is compatible with industry standard mounting processes. Part number Marking LNBTVS3-220 LNBTVS3-220 LNBTVS3-220U LC LNBTVS4-220 LNBTVS4-220 LNBTVS4-220S LAA LNBTVS4-221 LNBTVS4-221 LNBTVS4-221S LAB LNBTVS4-222S LAC LNBTVS6-220S LBA LNBTVS6-221S LBB Absolute maximum ratings (Tamb = 25° C) Symbol Parameter Peak pulse power dissipation (1) Tj initial = Tamb Peak dissipation on infinite heatsink Tamb = 75° C IFSM Non repetitive surge peak forward current for unidirectional types Tp = 10 ms Tj initial = Tamb Tstg Tj Storage temperature range Maximum junction temperature TL SMC Order Code This device provides the lightning protection required to pass the IEC and FCC regulations. P K SMB DO-201 The LNBTVSx-22xx is a dedicated lightning and electrical overstress surge protection for LNB voltage regulators in satellite set top box applications. PPP K K Description Table 1. A A Maximum lead temperature for soldering during 10 s at 5 mm from case Value Unit up to 3 kW W 5 W 200 A -65 to + 175 150 °C °C 230 °C 1. For a surge greater than the maximum values, the diode will fail in short-circuit. January 2007 Rev 3 1/9 www.st.com Characteristics LNBTVSx-22xx 1 Characteristics Table 2. Thermal resistance Symbol Parameter Package Value Unit Rth (j-l) Junction to leads DO-201 20 ° C/W Rth (j-a) Junction to ambient on printed circuit Llead = 10 mm DO-201 75 ° C/W Rth (j-l) Junction to case SMB 20 ° C/W Rth (j-a) Junction to ambient on printed circuit SMB 100 ° C/W Rth (j-l) Junction to case SMC 20 ° C/W Rth (j-a) Junction to ambient on printed circuit SMC 75 ° C/W Table 3. Electrical characteristics (Tamb = 25° C) Symbol Parameter I VBR Breakdown voltage IRM Leakage current @ VRM VRM Stand-off voltage VCL Clamping voltage IPP Peak pulse current RI/O Series resistance between Input & Output Cline Input capacitance per line IF Forward current VF Forward voltage Type Min V V LNBTVS3-220 1 20 22 LNBTVS3-220U 1 20 22 V IRM IR IPP PPP 10/1000 µS VBR @ IR μA Unidirectional VF VCL VBR VRM IRM @VRM Max IF Typ Max VCL @ Ipp 10/1000 µs VCL @ Ipp 8/20 µs (1) Max Max αT C Max Typ mA W V A V A 10-4/°C pF 23.1 24.2 1 1500 33.2 45 35 250 9.6 3000 23.1 24.2 1 1500 33.2 45 35 250 9.6 3000 V V LNBTVS4-220 1 20 22 23.1 24.2 1 1800 33.2 55 35 331 9.6 3500 LNBTVS4-220S 1 20 22 23.1 24.2 1 1800 33.2 55 35 331 9.6 3500 LNBTVS4-221 1 20 22 23.1 24.2 1 2000 33.2 60 32 331 9.6 5500 LNBTVS4-221S 1 20 22 23.1 24.2 1 2000 33.2 60 32 331 9.6 5500 LNBTVS4-222S 1 20 22 23.1 24.2 1 3000 33.2 90 30 331 9.6 6000 LNBTVS6-220S 1 20 22 23.1 24.2 1 3000 33.2 90 35 500 9.6 6000 LNBTVS6-221S 1 20 22 23.1 24.2 1 3000 33.2 90 32 500 9.6 6000 1. IEC 61000-4-5 R = 12 Ω 2/9 LNBTVSx-22xx Figure 1. Characteristics Surge test examples at +4 kV - IEC 61000-4-5 - with series resistor of 12 Ω LNBTVS4-221S LNBTVS4-220S LNBTVS6-221S 3/9 Application 2 LNBTVSx-22xx Application Figure 2. Application diagram LNBP/S Gate Sense StepController LT1 Feedback LT2 Vup Vcc Byp L OUT Preregul. U.V.lockout +P.ON R Enable I V Linear Post-reg +Modulator +Protection EXTM SCL Diagnostics SDA I²C DETIN 22 kHz Oscill ADDR Tone Detector DSQOUT LNBTVSx-22xx DSQIN Table 4. Optimized fit to ST voltage regulators LNB voltage regulators Recommended lightning protections LNBP20, LNBP11x, LNBP8/9 LNBTVS3-220/x, LNBTVS4-220/x, LNBTVS6-220S, LNBTVS6-221S 4/9 LNBS21, LNBP21 LNBTVS4-222S, LNBTVS6-221S LNBH21, LNBH221, LNBH22, LNBEH21, LNBEH221 LNBTVS4-220/x, LNBTVS4-221/x, LNBTVS6-221S LNBH23, LNBH24 LNBTVS4-221/x, LNBTVS4-222S, LNBTVS6-221S LNBTVSx-22xx 3 Ordering information scheme Ordering information scheme LNB TVS x - 22 xx Low noise block regulator Transient voltage suppressor Lightning surge level 3 = 3 kV 4 = 4 kV 6 = 6 kV VBR 22 = 22 V VCL 0 = 35 V 1 = 32 V 2 = 30 V Package U = SMB S = SMC Blank = DO201 5/9 Package information 4 LNBTVSx-22xx Package information ● Epoxy meets UL 94, V0 Table 5. SMC package dimensions DIMENSIONS REF. Millimeters Inches E1 Min. Max. Min. Max. A1 1.90 2.45 0.075 0.096 A2 0.05 0.20 0.002 0.008 b 2.90 3.2 0.114 0.126 c 0.15 0.41 0.006 0.016 E 7.75 8.15 0.305 0.321 E1 6.60 7.15 0.260 0.281 E2 4.40 4.70 0.173 0.185 D 5.55 6.25 0.218 0.246 L 0.75 1.60 0.030 0.063 D E A1 C Figure 3. A2 E2 L b SMC footprint (dimensions in mm) 1.54 5.11 1.54 3.14 8.19 6/9 LNBTVSx-22xx Package information Table 6. SMB package dimensions DIMENSIONS E1 REF. D Max. Min. A1 1.90 2.45 0.075 0.096 A2 0.05 0.20 0.002 0.008 b 1.95 2.20 0.077 0.087 c 0.15 0.41 0.006 0.016 E 5.10 5.60 0.201 0.220 E1 4.05 4.60 0.159 0.181 D 3.30 3.95 0.130 0.156 L 0.75 1.60 0.030 0.063 A2 C L Figure 4. Inches Min. E A1 Millimeters b Max. SMB footprint (dimensions in mm) 1.62 2.60 1.62 2.18 5.84 Table 7. DO-201 package dimensions DIMENSIONS B A B REF. ØD ØC Millimeters Inches Min. Max. Min. Max. A 8.5 9.5 B 25.4 ØC 4.8 5.3 0.189 0.209 ØD 0.96 1.06 0.038 0.042 0.335 0.374 1 In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 7/9 Ordering information 5 6 8/9 LNBTVSx-22xx Ordering information Part number Marking Package Weight Base qty Delivery mode LNBTVS3-220 LNBTVS3-220 DO-201 0.83 600 Amopack LNBTVS3-220U LC SMB 0.107 2500 Tape and reel LNBTVS4-220 LNBTVS4-220 DO-201 0.83 600 Amopack LNBTVS4-220S LAA SMC 0.245 2500 Tape and reel LNBTVS4-221 LNBTVS4-221 DO-201 0.83 600 Amopack LNBTVS4-221S LAB SMC 0.245 2500 Tape and reel LNBTVS4-222S LAC SMC 0.245 2500 Tape and reel LNBTVS6-220S LBA SMC 0.245 2500 Tape and reel LNBTVS6-221S LBB SMC 0.245 2500 Tape and reel Revision history Date Revision Changes 30-Sep-2005 1 First release 10-Apr-2006 2 Reformatted to current standard. Corrected peak pulse power dissipation for LNBTVS6-220S in Table 2. Corrected footprint dimensions for SMC and SMB packages. 29-Jan-2007 3 Added surge test examples in Figure 1. Added Table 4. Optimized fit to ST voltage regulators. Added cathode bar indicators in package illustrations on page 1. LNBTVSx-22xx 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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