 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
FODM3082 Datasheet(PDF) 8 Page - Fairchild Semiconductor |
|
||||||||||||||||||||||||||||||
FODM3082 Datasheet(HTML) 8 Page - Fairchild Semiconductor |
|
|
8 / 13 page  ©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FODM3062, FODM3063, FODM3082, FODM3083 Rev. 1.0.9 8 If sufficient holding current is still flowing through the opto-TRIAC, the opto-TRIAC will turn-on and attempt to carry the power TRIACs load. This situation typically causes the opto-TRIAC to operate beyond its maximum current rating, and product and resistor failures typically result. For this reason, using an opto- TRIAC to drive a three quadrant “snubberless” power TRIAC is not recommended. Power in the 360 Ω resistor, when driving a sensitive gate 4 quadrant power TRIAC: IGT = 20mA VGT = 1.5V DF = 0.6% P = (IGT +VGT / 330Ω) 2 x 360Ω x DF P = (20mA + 1.5 / 330 Ω)2 *x 360Ω x 0.6% = 1.3mW A 1/4 watt resistor is more than adequate for both the 360 Ω and 330Ω resistors. The real power in the snubber resistor is based upon the integral of the power transient present when the load commutes. A fast commuting transient may allow a peak current of 4A to 8A in the snubbing filter. For best results, the capacitor should be a non- polarized AC unit with a low ESR. The 39 Ω series resistor sets a time constant and limits the peak current. For a resistive load with a power factor near unity, the commutating transients will be small. This results in a very small peak current given the 0.01µF capacitor’s reactance. Normally, for factional horse- power reactive loads, the resistor found in the snubber circuit will have a power rating from 1/2W to 2W. The resistor should be a low inductance type to adequately filter the high frequency transients. |
Similar Part No. - FODM3082 |
|
Similar Description - FODM3082 |
|
|
|
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
