EMC｜AC/DC转换器ESD静电防护
时源芯微专业EMC/EMI/EMS整改 EMC防护器件
TVS1和TVS2在ESD保护中的作用
在电路图中，TVS1和TVS2作为瞬态电压抑制二极管，被用于提供ESD保护。它们的工作原理是：当在其两端施加高于其击穿电压的瞬态电压时，TVS会迅速导通，将电压钳位在一个安全的水平，从而防止过电压对电路元件造成损害。
TVS1的详细信息及作用
- 型号：6TS440CA
- 封装：SMB
- 反向截止电压（VRWM）：440V
- 峰值脉冲电流（IPP@10/1000μs）：0.9A
- 峰值脉冲功率（PPP）：600W
TVS1位于电路的输入端，连接在220Vrms交流输入与整流桥BR1之间。由于其较高的反向截止电压（440V），TVS1能够有效地保护电路免受输入侧的高电压瞬态冲击，如雷击或电网波动。在ESD事件中，TVS1能够迅速响应，将电压钳位在安全范围内，防止过电压对整流桥BR1及后续电路造成损害。
TVS2的详细信息及作用
- 6TS18CA TVS2
- 反向截止电压（VRWM）：18V
- 峰值脉冲电流（IPP@10/1 000μs）：21.2A
- 6TS6.0CA TVS2
- 反向截止电压（VRWM）：6V
- 峰值脉冲电流（IPP@10/1000μs）：58.26A
这两个TVS2二极管位于电路的输出端附近，并联在输出线上。由于它们具有较低的反向截止电压（分别为18V和6V），因此能够有效地保护电路免受输出侧的低电压瞬态冲击，如静电放电。在ESD事件中，TVS2能够迅速导通，将电压钳位在安全范围内，防止过电压对负载或其他关键组件造成损害。
| Part Number | VR | IR@VR | VBR@I | IT | Vc@lPP | Ipp | ||
| Uni-Polar | Bi-Polar | V | μA | min(V) | max(V) | mA | max(V) | A |
| 6TS3.3A | - | 3.3 | 600 | 5.2 | 6 | 10 | 8.0 | 75.00 |
| 6TS5.0A | 6TS5.0CA | 5.0 | 800 | 6.40 | 7.00 | 10 | 9.2 | 65.22 |
| 6TS6.0A | 6TS6.0CA | 6.0 | 800 | 6.67 | 7.37 | 10 | 10.3 | 58.26 |
| 6TS6.5A | 6TS6.5CA | 6.5 | 500 | 7.22 | 7.98 | 10 | 11.2 | 53.58 |
| 6TS7.0A | 6TS7.0CA | 7.0 | 200 | 7.78 | 8.60 | 10 | 12.0 | 50.00 |
| 6TS7.5A | 6TS7.5CA | 7.5 | 100 | 8.33 | 9.21 | 1 | 12.9 | 46.52 |
| 6TS8.0A | 6TS8.0CA | 8.0 | 50 | 8.89 | 9.83 | 1 | 13.6 | 44.12 |
| 6TS8.5A | 6TS8.5CA | 8.5 | 20 | 9.44 | 10.40 | 1 | 14.4 | 41.67 |
| 6TS9.0A | 6TS9.0CA | 9.0 | 10 | 10.00 | 11.10 | 1 | 15.4 | 38.97 |
| 6TS10A | 6TS10CA | 10.0 | 5 | 11.10 | 12.30 | 1 | 17.0 | 35.30 |
| 6TS11A | 6TS11CA | 11.0 | 1 | 12.20 | 13.50 | 1 | 18.2 | 32.97 |
| 6TS12A | 6TS12CA | 12.0 | 1 | 13.30 | 14.70 | 1 | 19.9 | 30.16 |
| 6TS13A | 6TS13CA | 13.0 | 1 | 14.40 | 15.90 | 1 | 21.5 | 27.91 |
| 6TS14A | 6TS14CA | 14.0 | 1 | 15.60 | 17.20 | 1 | 23.2 | 25.87 |
| 6TS15A | 6TS15CA | 15.0 | 1 | 16.70 | 18.50 | 1 | 24.4 | 24.60 |
| 6TS16A | 6TS16CA | 16.0 | 1 | 17.80 | 19.70 | 1 | 26.0 | 23.08 |
| 6TS17A | 6TS17CA | 17.0 | 1 | 18.90 | 20.90 | 1 | 27.6 | 21.74 |
| 6TS18A | 6TS18CA | 18.0 | 1 | 20.00 | 22.10 | 1 | 29.2 | 20.55 |
| 6TS20A | 6TS20CA | 20.0 | 1 | 22.20 | 24.50 | 1 | 32.4 | 18.52 |
| 6TS22A | 6TS22CA | 22.0 | 1 | 24.40 | 26.90 | 1 | 35.5 | 16.91 |
| 6TS24A | 6TS24CA | 24.0 | 1 | 26.70 | 29.50 | 1 | 38.9 | 15.43 |
| 6TS26A | 6TS26CA | 26.0 | 1 | 28.90 | 31.90 | 1 | 42.1 | 14.26 |
| 6TS28A | 6TS28CA | 28.0 | 1 | 31.10 | 34.40 | 1 | 45.4 | 13.22 |
| 6TS30A | 6TS30CA | 30.0 | 1 | 33.30 | 36.80 | 1 | 48.4 | 12.40 |
| 6TS33A | 6TS33CA | 33.0 | 1 | 36.70 | 40.60 | 1 | 53.3 | 11.26 |
| 6TS36A | 6TS36CA | 36.0 | 1 | 40.00 | 44.20 | 1 | 58.1 | 10.33 |
| 6TS40A | 6TS40CA | 40.0 | 1 | 44.40 | 49.10 | 1 | 64.5 | 9.31 |
| 6TS43A | 6TS43CA | 43.0 | 1 | 47.80 | 52.80 | 1 | 69.4 | 8.65 |
| 6TS45A | 6TS45CA | 45.0 | 1 | 50.00 | 55.30 | 1 | 72.7 | 8.26 |
| 6TS48A | 6TS48CA | 48.0 | 1 | 53.30 | 58.90 | 1 | 77.4 | 7.76 |
| 6TS51A | 6TS51CA | 51.0 | 1 | 56.70 | 62.70 | 1 | 82.4 | 7.29 |
| 6TS54A | 6TS54CA | 54.0 | 1 | 60.00 | 66.30 | 1 | 87.1 | 6.89 |
| 6TS58A | 6TS58CA | 58.0 | 1 | 64.40 | 71.20 | 1 | 93.6 | 6.42 |
| 6TS60A | 6TS60CA | 60.0 | 1 | 66.70 | 73.70 | 1 | 96.8 | 6.20 |
| 6TS64A | 6TS64CA | 64.0 | 1 | 71.10 | 78.60 | 1 | 103.0 | 5.83 |
| —2— | ||||||||
| Part Number | VR | IR@VR | VBR@Ir | I | Vc@Ipp | Ipp | ||
| Uni-Polar | Bi-Polar | V | μA | min(V) | max(V) | mA | max(V) | A |
| 6TS70A | 6TS70 CA | 70.0 | 1 | 77.80 | 86.00 | 1 | 113.0 | 5.31 |
| 6TS75A | 6TS75CA | 75.0 | 1 | 83.30 | 92.10 | 1 | 121.0 | 4.96 |
| 6TS78A | 6TS78CA | 78.0 | 1 | 86.70 | 95.80 | 1 | 126.0 | 4.77 |
| 6TS85A | 6TS85CA | 85.0 | 1 | 94.40 | 104.0 | 1 | 137.0 | 4.38 |
| 6TS90A | 6TS90 CA | 90.0 | 1 | 100.0 | 111.0 | 1 | 146.0 | 4.11 |
| 6TS100A | 6TS100CA | 100.0 | 1 | 111.0 | 123.0 | 1 | 162.0 | 3.71 |
| 6TS110A | 6TS110CA | 110.0 | 1 | 122.0 | 135.0 | 1 | 177.0 | 3.39 |
| 6TS120A | 6TS120CA | 120.0 | 1 | 133.0 | 147.0 | 1 | 193.0 | 3.11 |
| 6TS130A | 6TS130CA | 130.0 | 1 | 144.0 | 159.0 | 1 | 209.0 | 2.88 |
| 6TS150A | 6TS150CA | 150.0 | 1 | 167.0 | 185.0 | 1 | 243.0 | 2.47 |
| 6TS160A | 6TS160CA | 160.0 | 1 | 178.0 | 197.0 | 1 | 259.0 | 2.32 |
| 6TS¹70A | 6TS170CA | 170.0 | 1 | 189.0 | 209.0 | 1 | 275.0 | 2.19 |
| 6TS180A | 6TS180CA | 180.0 | 1 | 201.0 | 222.0 | 1 | 292.0 | 2.06 |
| 6TS190A | 6TS190CA | 190.0 | 1 | 209.0 | 233.0 | 1 | 308.0 | 1.96 |
| 6TS200A | 6TS200CA | 200.0 | 1 | 224.0 | 247.0 | 1 | 324.0 | 1.86 |
| 6TS210A | 6TS210CA | 210.0 | 1 | 237.0 | 263.0 | 1 | 340.0 | 1.79 |
| 6TS220A | 6TS220CA | 220.0 | 1 | 246.0 | 272.0 | 1 | 356.0 | 1.69 |
| 6TS250A | 6TS250CA | 250.0 | 1 | 279.0 | 309.0 | 1 | 405.0 | 1.49 |
| 6TS300A | 6TS300CA | 300.0 | 1 | 335.0 | 371.0 | 1 | 486.0 | 1.24 |
| 6TS350A | 6TS350CA | 350.0 | 1 | 391.0 | 432.0 | 1 | 567.0 | 1.06 |
| 6TS400A | 6TS400CA | 400.0 | 1 | 447.0 | 494.0 | 1 | 648.0 | 0.93 |
| 6TS440A | 6TS440CA | 440.0 | 1 | 492.0 | 543.0 | 1 | 713.0 | 0.85 |