 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
SP3249ECA Datasheet(PDF) 11 Page - Sipex Corporation |
|
||||||||||||||||||||||||||||||
SP3249ECA Datasheet(HTML) 11 Page - Sipex Corporation |
|
|
11 / 14 page  11 Rev.4/08/02 SP3249E Intelligent +3.0V to +5.5V RS-232 Transceivers © Copyright 2002 Sipex Corporation DEVICE PIN HUMAN BODY IEC1000-4-2 TESTED MODEL Air Discharge Direct Contact Level Driver Outputs ±15kV ±15kV ±8kV 4 Receiver Inputs ±15kV ±15kV ±8kV 4 The circuit model in Figures 16 and 17 represent the typical ESD testing circuit used for all three methods. The CS is initially charged with the DC power supply when the first switch (SW1) is on. Now that the capacitor is charged, the second switch (SW2) is on while SW1 switches off. The voltage stored in the capacitor is then applied through RS, the current limiting resistor, onto the device under test (DUT). In ESD tests, the SW2 switch is pulsed so that the device under test receives a duration of voltage. For the Human Body Model, the current limiting resistor (R S) and the source capacitor (CS) are 1.5kW an 100pF, respectively. For IEC-1000-4- 2, the current limiting resistor (R S) and the source capacitor (C S) are 330W an 150pF, respectively. The higher C S value and lower R S value in the IEC1000-4-2 model are more stringent than the Human Body Model. The larger storage capacitor injects a higher voltage to the test point when SW2 is switched on. The lower current limiting resistor increases the current charge onto the test point. Figure 18. ESD Test Waveform for IEC1000-4-2 t=0ns t=30ns 0A 15A 30A t ➙ Figure 17. ESD Test Circuit for IEC1000-4-2 Table 2. Transceiver ESD Tolerance Levels RS and RV add up to 330Ω for IEC1000-4-2. RS and RV add up to 330Ω for IEC1000-4-2. Contact-Discharge Module RV RC CS RS SW1 SW2 RC Device Under Test DC Power Source CS RS SW1 SW2 RV Contact-Discharge Module |
Similar Part No. - SP3249ECA |
|
Similar Description - SP3249ECA |
|
|
|
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
