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ELFORUM - Forumul electronistilor

Consum/incalzire circuite decodificatoare

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Buna ziua ,Am testat cdb447 si am constatat ca in gol consuma 50ma si se incalzesc tare .Am studiat documentatie de la serie sn7447 si afirma un consum intre 65 si 13 ma, functie de data fabricatie .Am studiat si la 74ls447 unde afirma un consum de 13 ma Banuesc ca daca consuma putin , se incalzeste putin .Care este adevarul ? nu stiu ce se gaseste uzual prin magazine si concret ce sa caut , ca sa nu se incalzeasca . Ce se gaseste in comert si la ce sa ma astept privind consumul ?

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