VISHAY GE NERAL SEMICONDUCTOR 瞬态电压抑制器 应用笔记 用于汽车电子保护的瞬态电压抑制器 (TVS) Soo Man (Sweetman) Kim, Vishay I) TVS 的重要参数 TVS 功率等级 TVS Vishay TVS 10 μs/1000 μs (Bellcore 1089) 1 TVS ESD 8 μs/20 μs 2 1 10 µs 10 µs/1000 µs 8 µs I PPM 8 µs/20 µs 100 % 100 % I PPM I PPM 2 I PPM 2 50 % 50 % 0 % 0 0.5 1.0 1.5 2.0 2.5 (ms) 1. TVS 0 % 0 5 10 15 20 25 (µs) 2. TVS ESD Document Number: 89866 For technical questions within your region, please contact one of the following: www.vishay.com Revision: 12-Jan-10 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com 1 APPLIC ATION N O T E
Application Note Transient Voltage Suppressors (TVS) for 表 1 VISHAY 的 SM6T 系列的电特性 25 C 型号 击穿电压 器件标识码 V BR AT I T I T 测试电流 (ma) 关态电压 V RM 漏电流 I RM AT V RM Uni Bi Min. Max. (µa) 钳位电压 V C AT I PP 10 µs/1000 µs (A) CLAMPING 钳位电压 V C AT I PP 8 µs/20 µs SM6T6V8A KE7 KE7 6.45 7.14 10 5.80 1000 10.5 57.0 13.4 298 5.7 SM6T7V5A KK7 AK7 7.13 7.88 10 6.40 500 11.3 53.0 14.5 276 6.1 SM6T10A KT7 AT7 9.50 10.5 1.0 8.55 10.0 14.5 41.0 18.6 215 7.3 SM6T12A KX7 AX7 11.4 12.6 1.0 10.2 5.0 16.7 36.0 21.7 184 7.8 SM6T15A LG7 LG7 14.3 15.8 1.0 12.8 1.0 21.2 28.0 27.2 147 8.4 (A) T MAX. 0-4 / C 击穿电压 (V BR ) 1SM6T6V8A 10mA 6.8V5%, SM6T10A 1mA 10V 最大击穿电压 (V C : 钳位电压 ) TVS TVS 1 ma 10 ma, 110 μs/1000 μs 8 μs/20 μs 关态电压 (V WM ): 工作关态反向电压 TVS 10 12V 24 V DC 24V 36 V DC TVS APPLICATI O N NOTE V C V BR V WM www.vishay.com For technical questions within your region, please contact one of the following: Document Number: 89866 2 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com Revision: 12-Jan-10 I F I R I PP 3. V F
Transient Voltage Suppressors (TVS) for Application Note II) 车载电源的初级侧保护 ( 抛负载 ) ESD 什么是抛负载? 5 ISO-7637-2 Pulse 5, 14V JASO A-1 27VJASO D-1TVS 14V A TCU ECU ESD 4. ABS 6 VishayTRANSZORB TVS TVS + TVS - A X 6. V P V N 5. DO-218AB Document Number: 89866 For technical questions within your region, please contact one of the following: www.vishay.com Revision: 12-Jan-10 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com 3 APPLIC ATION N O T E
Application Note 抛负载测试的标准和结果 Transient Voltage Suppressors (TVS) for ISO-7637-2 Pulse 5, Japan14VJASO A-127 表 2 14V 动力系的主抛负载测试条件 JASO A-1 V TOTAL (V P ) 70 88 V S ISO 7637-2 Pulse 5 78.5 to 100.5 65 to 87 13.5 0.5 to 4.0 400 1 V A 12.0 12.0 R I (Ω) 0.8 1.0 时间 (ms) 200 200 循环时间 1 1 100 JASO A-1: 0.8 Ω, 200 ms ISO-7637: 0.5 Ω min. (0.5 Ω to 4 Ω), 400 ms max. (40 ms to 400 ms) V S V P 50 JASO A-1 36.8 % of V P ISO 7637 V r + 10 % of V S V r 0 0 100 200 300 400 (ms) 7. For ISO-7637-2 Test Conditions, VS 65 V 87 V, R i 0.5 Ω 4 Ω ISO-7637-2 Pulse 5 TVS I PP = ( V in V c ) R i I PP : V in : V c : : R i 3 Vishay TVS APPLICATI O N NOTE 表 3 - VISHAY 抛负载 TVS 的钳位电压 测试条件 VC 的标准 JASO A-1 ISO-7637-2 PULSE 5 10 µs/1000 µs 波形 P = 70 V, T = 200 ms, R i = 1.5 Ω V S = 87 V, T = 300 ms, R i = 0.75 Ω SM5A27 40.0 V at IPP = 55 A 34.1 V at I PP = 47.4 A 36.5 V at I PP = 59.4 A SM5S24A 38.9 V at I PP = 93 A 33.8 V at I PP = 47.6 A 36.1 V at I PP = 60.1 A SM6A27 40.0 V at I PP = 65 A 33.7 V at I PP = 48.1 A 35.8 V at I PP = 60.4 A SM6S24A 38.9 V at I PP = 118 A 33.5 V at I PP = 48.3 A 35.8 V at I PP = 60.4 A SM8A27 40.0 V at I PP = 75 A 33.2 V at I PP = 48.4 A 34.9 V at I PP = 61.1 A SM8S24A 38.9 V at I PP = 170 A 32.1 V at I PP = 48.8 A 34.4 V at I PP = 62.0 A VishayTVS 37V 37V 40V www.vishay.com For technical questions within your region, please contact one of the following: Document Number: 89866 4 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com Revision: 12-Jan-10
Transient Voltage Suppressors (TVS) for 8a SM5A27 JASO A/1 Application Note Figure 8a. SM5A27 JASO A-1 8bISO-7637-2 TVS Figure 8b. ISO7637-2 TVS 4 VishayTVS ISO-7637-2 Pulse 5SM8S24A 表 4 - 各种抛负载测试条件下的失效率 JASO TEST ISO-7637-2 PULSE 5 T = 200 ms, R i = 0.8 Ω T = 300 ms, R i = 0.5 Ω 电源电压 70 V 77 V 84 V 87 V 100 V 110 V/25 C 110 V/85 C SM5A27 20/0 20/0 20/0 20/0 20/0 20/20 - SM5S22A 20/0 20/0 20/0 20/0 20/0 20/20 - SM5A24A 20/0 20/0 20/0 20/0 20/0 20/20 - SM6A27 20/0 20/0 20/0 20/0 20/0 20/20 - SM6S24A 20/0 20/0 20/0 20/0 20/0 20/20 - SM8A27 20/0 20/0 20/0 20/0 20/0 20/3 20/9 SM8S24A 20/0 20/0 20/0 20/0 20/0 20/0 20/0 ISO-76372 I PP = ( V in V c ) R i = ( 110 35) 0,5 = 150 A Document Number: 89866 For technical questions within your region, please contact one of the following: www.vishay.com Revision: 12-Jan-10 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com 5 APPLIC ATION N O T E
Application Note 两组 VISHAY 抛负载 TVS Transient Voltage Suppressors (TVS) for VishayEPI PAR TVS Non-EPI PAR TVS PAR TVS 5 表 5 - PAR 抛负载产品组封装类型 EPI PAR TVS 6KA24 SM5A27 SM6A27 SM8A27 NON-EPI PAR TVS SM5S SM6S SM8S EPI-PAR TVS V F non-epi PAR TVS V F 6 表 6 - PAR 抛负载 TVS 的参数 V F ( 典型值 ) ( 加 0.3 ms 脉冲 ) V 0.1 A 6 A 100 A 在反向漏电流下的关态电压 在反向漏电流下的击穿电压 SM5A27 0.70 0.93 0.95 22 V at 0.2 µa 27 V at 10 ma SM6A27 0.70 0.91 0.94 22 V at 0.5 µa 27 V at 10 ma SM8A27 0.70 0.89 0.93 22 V at 1.0 µa 27 V at 10 ma SM5S24A 0.70 0.92 1.65 24 V at 10 µa 28 V at 5 ma SM6S24A 0.70 0.88 1.50 24 V at 10 µa 28 V at 5 ma SM8S24A 0.70 0.86 1.45 24 V at 10 µa 28 V at 5 ma CMOS IC LSI MOSFET-1V TVS (V F ) EPI PAR TVS 9 Vishay - APPLICATI O N NOTE + TVS 9. V F www.vishay.com For technical questions within your region, please contact one of the following: Document Number: 89866 6 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com Revision: 12-Jan-10
Transient Voltage Suppressors (TVS) for Application Note III) 车载电源线的次级保护 27 24V DC-DC IC45 V 60 V 24V7 表 7 - JASO D-1 抛负载测试 JASO D-1 P/N V P = 110 V t = 400 ms, R i = 1.5 W V P = 130 V V C I PP V C I PP SM5S36A 56 V 39.2 A N/A SM6S36A 53 V 41.1 A 57 V 52 A SM8S36A 52 V 42.0 A 55 V 53 A Vishay 10 + R 10. R TVS 150 ma 300mA- 18 C 12V7.2 V 24V 14.4V 24V R = 20 Ω 300mA 8.4VR = 10 Ω14.4 V - 18 C 24V 11.4V V L = ( V min ( V min I L )) (( V min I L ) R) V L : V min : I L : R: R = I 2 R DC-DC IC Document Number: 89866 For technical questions within your region, please contact one of the following: www.vishay.com Revision: 12-Jan-10 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com 7 APPLIC ATION N O T E
Application Note Transient Voltage Suppressors (TVS) for 24VJASO D-1(110 V, t = 400 ms, R i = 1.5 Ω) TVS 8 表 8 - 在 JASO D-1 测试条件下次级保护 TVS 的钳位电压 初级保护 次级保护 P/N P/N R = 10 Ω, 2 W R = 20 Ω, 2 W V C I PP V C I PP TPSMC39A 42.8 V 0.93 A 41.3 V 0.56 A TPSMB39A 44.9 V 0.85 A 42.2 V 0.50 A SM8S36A 51.3 V TPSMA39A 45.6 V 0.75 A 43.3 V 0.45 A TPSMC36A 40.3 V 1.25 A 37.8 V 0.70 A TPSMB36A 43.5 V 1.00 A 39.1 V 0.65 A TPSMA36A 44.0 V 0.90 A 40.6 V 0.60 A 14 V/27 V L R C C MCU 11. JASO D-1 12. APPLICATI O N NOTE TPSMC36A 20 Ω - V C = 37.8 V - I PP = 0.7 A ± 5 % www.vishay.com For technical questions within your region, please contact one of the following: Document Number: 89866 8 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com Revision: 12-Jan-10