 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
SRDA12-4.TBT Datasheet(PDF) 7 Page - Semtech Corporation |
|
||||||||||||||||||||||||||||||
SRDA12-4.TBT Datasheet(HTML) 7 Page - Semtech Corporation |
|
|
7 / 11 page  7 © 2007 Semtech Corp. www.semtech.com PROTECTION PRODUCTS PROTECTION PRODUCTS SRDA05-4 and SRDA12-4 Applications Information (continued) the power supply connection. During an ESD event, the current will be directed through the integrated TVS diode to ground. The total clamping voltage seen by the protected IC due to this path will be: V C = V F(RailClamp) + V TVS This is given in the data sheet as the rated clamping voltage of the device. For an SRDA05-4 the typical clamping voltage is <16V at I PP =30A. The diodes internal to the RailClamp are low capacitance, fast switching devices that are rated to handle high tran- sient currents and maintain excellent forward voltage characteristics. Using the RailClamp does not negate the need for good board layout. All other inductive paths must be consid- ered. The connection between the positive supply and the SRDA and from the ground plane to the SRDA must be kept as short as possible. The path between the SRDA and the protected line must also be mini- mized. The protected lines should be routed directly to the SRDA. Placement of the SRDA on the PC board is also critical for effective ESD protection. The device should be placed as close as possible to the input connector. The reason for this is twofold. First, inductance resists change in current flow. If a signifi- cant inductance exists between the connector and the TVS, the ESD current will be directed elsewhere (lower resistance path) in the system. Second, the effects of radiated emissions and transient coupling can cause upset to other areas of the board even if there is no direct path to the connector. By placing the TVS close to the connector it will divert the ESD current immedi- ately and absorb the ESD energy before it can be coupled into nearby traces. |
Similar Part No. - SRDA12-4.TBT |
|
Similar Description - SRDA12-4.TBT |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
