поискавой системы для электроныых деталей |
|
AMC1117SKF датащи(PDF) 7 Page - ADDtek Corp |
|
AMC1117SKF датащи(HTML) 7 Page - ADDtek Corp |
7 / 9 page AMC1117 Copyright © 2006 ADDtek Corp. 7 DD004_K -- JULY 2006 Application Note: Maximum Power Calculation: Thermal consideration: When power consumption is over about 404 mW (for SOT-223 package, 687mW for TO-252 package, at TA=70 OC), additional heat sink is required to control the junction temperature below 125 OC. The junction temperature is: TJ = P D (θJT + θCS + θSA) + TA P D: Dissipated power. θJT: Thermal resistance from the junction to the mounting tab of the package. θCS: Thermal resistance through the interface between the IC and the surface on which it is mounted. (Typically, θCS < 1.0°C/W) θSA: Thermal resistance from the mounting surface to ambient (thermal resistance of the heat sink). If PC Board copper is going to be used as a heat sink, below table can be used to determine the appropriate size of copper foil required. For multi-layered PCB, these layers can also be used as a heat sink. They can be connected with several through hole vias. PCB θSA(OC /W) 59 45 38 33 27 24 21 PCB heat sink size (mm2) 500 1000 1500 2000 3000 4000 5000 Recommended figure of PCB area used as a heat sink. TJ(MAX) – TA(MAX) PD(MAX)= θ JA TJ( OC): Maximum recommended junction temperature TA( OC): Ambient temperature of the application θ JA( OC/W): Junction-to-junction temperature thermal resistance of the package, and other heat dissipating materials. The maximum power dissipation of a single-output regulator : PD(MAX) = [(VIN(MAX) - VOUT(NOM))] × IOUT(NOM) + VIN(MAX) × IQ Where: VOUT(NOM) = the nominal output voltage IOUT(NOM) = the nominal output current, and IQ = the quiescent current the regulator consumes at IOUT(MAX) VIN(MAX) = the maximum input voltage Then θ JA = (150 OC – TA)/ PD (Top View) (Bottom View) through hole vias |
Аналогичный номер детали - AMC1117SKF |
|
Аналогичное описание - AMC1117SKF |
|
|
ссылки URL |
Конфиденциальность |
ALLDATASHEETRU.COM |
Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | обмен ссыками | поиск по производителю 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 |