MAX5974DETE+T Ukushintsha Izilawuli Ezisebenzayo-ezicishiwe, ezisabalele, izilawuli ze-PWM zemodi yamanje
♠ Incazelo Yomkhiqizo
| Isibaluli Somkhiqizo | Isibaluli senani |
| Umkhiqizi: | I-Maxim Integrated |
| Isigaba somkhiqizo: | Ukushintsha Izilawuli |
| I-RoHS: | Imininingwane |
| I-Topology: | - |
| Inombolo Yemiphumela: | 1 Okukhiphayo |
| Ukushintsha Imvamisa: | 600 kHz |
| Umjikelezo Womsebenzi - Ubukhulu: | 82 % |
| I-Voltage Yokufaka: | 10.5 V |
| I-Voltage Yokuphumayo: | - |
| Okukhiphayo Kwamanje: | 1 mA |
| Izinga Lokushisa Eliphansi Lokusebenza: | - 40 C |
| Izinga Lokushisa Eziphezulu Ezisebenzayo: | + 85 C |
| Isitayela Sokukhweza: | I-SMD/SMT |
| Iphakheji / Ikesi: | I-TQFN-16 |
| Ukupakishwa: | I-reel |
| Ukupakishwa: | Sika Tape |
| Ukupakishwa: | I-MouseReel |
| Ibhrendi: | I-Maxim Integrated |
| Isikhathi sokuwa: | 14 ns |
| Ukunikezwa Okusebenzayo Kwamanje: | 1.8 mA |
| I-Operating Supply Voltage: | 12 V kuya ku-21 V |
| Uhlobo Lomkhiqizo: | Ukushintsha Izilawuli |
| Isikhathi Sokuvuka: | 27 ngi |
| Uchungechunge: | MAX5974 |
| Inani Lephakethe Lefekthri: | 2500 |
| Isigaba esingaphansi: | PMIC - Power Management ICs |
| Uhlobo: | Izilawuli ze-PWM zemodi yamanje |
| Ingxenye # Iziteketiso: | MAX5974 |
♠Izilawuli ze-PWM ezisebenzayo, ezisabalele, zemodi yamanje
I-MAX5974_ ihlinzeka ngokulawula kwe-wide-input-voltage, active-clamped, i-PWM yemodi yamanje, iziguquli eziya phambili kuma-applications edivayisi ye-Power-over-Ethernet (PoE) powered device (PD). I-MAX5974A/MAX5974C ifaneleka kahle uhla lokokufaka lwe-universal noma i-telecom, kuyilapho i-MAX5974B/ MAX5974D iphinde ifake i-voltage ephansi yokufaka ehle iye ku-10.5V.
Amadivayisi afaka izici ezimbalwa zokuthuthukisa ukusebenza kahle kokuhlinzeka. Umshayeli we-AUX uphinda asebenzise i-current magnetizing esikhundleni sokuyimosha kumjikelezo we-clamp dissipative. Isikhathi sokufa esingahleleleka phakathi kwe-AUX nomshayeli omkhulu sivumela ukushintshashintsha kwe-zero-voltage (ZVS). Ngaphansi kwezimo zokulayisha ukukhanya, amadivayisi anciphisa imvamisa yokushintsha (ukugoqa imvamisa) ukuze kuncishiswe ukulahlekelwa kokushintsha.
I-MAX5974A/MAX5974B ifaka ukujikeleza okuyingqayizivele ukuze kuzuzwe ukulawulwa kokuphumayo ngaphandle kokusebenzisa i-optocoupler, kuyilapho i-MAX5974C/MAX5974D isebenzisa indlela yempendulo ye-optocoupler yendabuko. Isikhulisi sephutha sangaphakathi esinereferensi engu-1% siwusizo kakhulu ekwakhiweni okungahlangene, sisusa isidingo sesilawuli se-shunt sangaphandle.
Amadivayisi anesici esiyingqayizivele se-feed-forward maximum duty-cycle clamp eyenza ubude be-volt ye-clamp enkulu phakathi nezimo zesikhashana ngaphandle kwe-voltage yolayini, okuvumela ukusetshenziswa kwamandla e-MOSFET ane-voltage ephukile ephansi. Isici esihlelekayo se-frequency dither ing sihlinzeka nge-EMI ephansi, ukusebenza kwe-spread-spectrum.
Ama-MAX5974_ atholakala ngeminyaka yephakethe le-TQFN-EP engu-16-pin futhi akalelwe ukusebenza phezu kwamazinga okushisa -40°C kuya +85°C kanye -40°C kuya +125°C.
● Isilawuli Semodi Yamanje Ephakeme, Isilawuli se-PWM Esibambezeleke Esisebenzayo
● Umthethonqubo Ngaphandle kwe-Optocoupler (MAX5974A/ MAX5974B)
● Isikhulisi Sephutha esingu-1% sangaphakathi
● 100kHz kuya ku-600kHz Ehlelekayo ±8% Ukushintsha Imvamisa, Ukuvumelanisa Kufikela ku-1.2MHz
● Programmable Frequency Dithering for Low-EMI, Spread-Spectrum Operation
● I-Programmable Dead Time, i-PWM Soft-Start, Isinxephezelo Samanje Se-Slope
● I-Programmable Feed-Forward Maximum Duty Cycle Clamp, 80% Maximum Limit
● I-Foldback Foldback Yokusebenza Okusebenza Kakhulu Komthwalo Wokukhanya
● I-Bootstrap yangaphakathi ye-UVLO ene-Large Hysteresis
● 100μA (uhlobo) Lwamanje Lokunikeza Ukuqalisa
● I-Fast Cycle-by-Cycle Peak Current-Limit, 35ns Ukubambezeleka Okujwayelekile Kokusabalalisa
● 115ns Current-Sense Internal Leading-Edge Blanking
● Ukuvikelwa Kwesekethe Emfishane Okuphumayo Ngemodi ye-Hiccup
● Hlehlisa Umkhawulo Wamanje Ukuze Ugweme Ukugcwaliswa Kwesiguquli Ngenxa Yokuhlehla Kwamanje
● I-18V Zener Clamp Yangaphakathi Kokufaka Kokuhlinzeka
● 3mm x 3mm, I-Lead-Free, 16-Pin TQFN-EP
● I-PoE IEEE® 802.3af/at Powered Devices
● I-High-Power PD (Ngaphezu kwe-802.3af/at Standard)
● Iziguquli ze-DC-DC ezicishiwe ezisebenzayo
● Amafoni we-IP
● AmaNodi Okungena Okungenantambo
● Amakhamera okuphepha
