TVS ESD 防雷防靜電保護方案

1、1Leiditech ESD introductionTVS/ESD21.USB 2.0 Ports protection11.Vcc pin directly short to USBs Vbus plate, No trace connection.2.GND pin directly short to USBs GND plate, No trace connection.3.TVS can NOT be placed at the boundary of different power Plates.4.TVSS I/O pin first, then connected to the

2、 controller32.USB 2.0 Ports protection21.VCC pin directly short to USBs VBUS plate, No trace connection.2.GND pin directly short to USBs GND plate, No trace connection.3.D+/D- Pin directly short to USBs D+/ D- line.4.ESDS I/O pin first, then connected to the controller43.Ethernet Ports protection11.

3、 4 pics GDT as first lever Surge protect 2. 4 pics ESD directly short to Ethernets data line as differential mode protection3. IEC 61000-4-2 Level 4 (ESD) - 8kV / 15kV4.IEC 61000-4-4 EFT 4KV 54.Ethernet Ports protection21. 4 pics GDT as first lever Surge protect 2. 2 pics ESD directly short to Ether

4、nets data line as differential mode protection3. IEC 61000-4-2 Level 4 (ESD) - 8kV / 15kV4.IEC 61000-4-4 EFT 4KV 65.Ethernet Ports protection31.6 Pin SRV05-4 short to Ethernets data line with 4 data pin.2.GND pin directly short to Boards GND plate.3.Vcc connected to GND with 0.1uf Capacitance.4.IEC

5、61000-4-2 Level 4 (ESD) - 8kV / 15kVSRV05-476.DVI Ports protectionSRV05-4or1.This solution use two pics SRV05-4.2.Each SRV05-4S data pin short to DVI data.3.IEC 61000-4-2 Level 4 (ESD) - 8kV / 15kV87.VGA Ports protectionSRV05-4or1.This solution use two pics SRV05-4.2.Each SRV05-4S data pin short to

6、VGA data line.3.GND pin directly short to Boards GND plate.4.Vcc connected to GND with 0.1uf Capacitance.5.IEC 61000-4-2 Level 4 (ESD) - 8kV / 15kV98.HDMI Ports protection109.HDMI1.3 Ports protection2*ULC0568M1110.SD Card Ports protection1211.MMC Card Ports protection1312.SIM Card Ports protection1413.RS232 Ports protectionSD12C1514.RS232/485 Ports protection1615.RS232/485 Ports protection1716.RF Antenna Ports protectionLC05CI1817 CAN Bus