LM5007MMX/NOPB Kusintha kwa Voltage Regulators High Voltage 80V

Chosinthira chosinthira cha LM5007 0.5-A chotsika pansi chimakhala ndi ntchito zonse zofunika kukhazikitsa chowongolera chotsika mtengo komanso chothandiza.Chosinthira cha highvoltage ichi chimakhala ndi chosinthira cha 80-V, 0.7-A Nchannel buck ndipo chimagwira ntchito pamagetsi amtundu wa 9 V mpaka 75 V. Chipangizocho ndi chosavuta kugwiritsa ntchito ndipo chimaperekedwa mu 8-pini VSSOP ndi pini 8 yowongoleredwa ndi thermally. WSON phukusi.

Wotembenuza amagwiritsa ntchito hystertic control scheme yokhala ndi PWM pa nthawi mosagwirizana ndi VIN.Izi zimathandiza kuti ma frequency ogwiritsira ntchito azikhala osasinthasintha ndi kuchuluka kwa mphamvu ndi kuyika kwamagetsi.Kuwongolera kwa hysteric sikufuna kubwezeredwa kwa loop ndipo kumapereka kuyankha kwakanthawi kochepa.Malire anzeru omwe alipo tsopano amakhazikitsidwa ndikukakamiza kusiya nthawi yomwe ili yofanana ndi VOUT.Chiwembu chochepetsera chapanochi chimatsimikizira chitetezo chachifupi pomwe chimapereka kubwezeredwa kwakanthawi kochepa.Zina zodzitchinjiriza zikuphatikiza kutseka kwamafuta ndi kuchira kodziwikiratu, VCC ndi kutsekera kwa gate drive undervoltage, ndi limiter yayikulu yozungulira.