MAX5974DETE+T Kusintha Ma Controllers Ogwira Ntchito, Ofalikira, Owongolera Amakono a PWM
♠ Kufotokozera Zamalonda
| Mtundu wa Zamalonda | Mtengo wa Makhalidwe |
| Wopanga: | Maxim Integrated |
| Gulu lazinthu: | Kusintha Owongolera |
| RoHS: | Tsatanetsatane |
| Topology: | - |
| Chiwerengero cha Zotulutsa: | 1 Zotulutsa |
| Kusintha pafupipafupi: | 600 kHz |
| Duty Cycle - Max: | 82 % |
| Mphamvu yamagetsi: | 10.5 V |
| Mphamvu ya Output: | - |
| Zotulutsa Panopa: | 1 mA |
| Kutentha Kochepa Kwambiri: | -40 C |
| Kutentha Kwambiri Kwambiri: | + 85 C |
| Mtundu Wokwera: | SMD/SMT |
| Phukusi / Mlandu: | Chithunzi cha TQFN-16 |
| Kuyika: | Reel |
| Kuyika: | Dulani Tepi |
| Kuyika: | MouseReel |
| Mtundu: | Maxim Integrated |
| Nthawi Yogwa: | 14 ns |
| Zomwe Zikugwira Ntchito Panopa: | 1.8mA |
| Mphamvu yamagetsi yamagetsi: | 12 mpaka 21 V |
| Mtundu wa malonda: | Kusintha Owongolera |
| Nthawi Yokwera: | 27 ndi |
| Mndandanda: | Mtengo wa MAX5974 |
| Kuchuluka Kwa Paketi Ya Factory: | 2500 |
| Gulu laling'ono: | PMIC - Power Management ICs |
| Mtundu: | Olamulira a PWM amakono |
| Gawo # Zilankhulo: | Mtengo wa MAX5974 |
♠Active-Clamped, Spread-Spectrum, Current-Mode PWM Controllers
MAX5974_ imapereka chiwongolero champhamvu-yolowetsa-voltage, yogwira-clamped, PWM yamakono, osinthira patsogolo mu Power-over-Ethernet (PoE) powered device (PD) cations. Ma MAX5974A/MAX5974C ndi oyenera kulowetsa padziko lonse lapansi kapena patelefoni, pomwe MAX5974B/ MAX5974D imakhalanso ndi magetsi otsika mpaka 10.5V.
Zipangizozi zimakhala ndi zinthu zingapo zowonjezeretsa kutulutsa bwino. Dalaivala wa AUX amabwezeretsanso ma magnetizing cur rent m'malo mongowononga pagawo losokoneza. Nthawi yokhoza kufa pakati pa AUX ndi dalaivala wamkulu imalola kusintha kwa zero-voltage (ZVS). Pamalo olemetsa, zida zimachepetsa kusintha kwafupipafupi (kubwereza pafupipafupi) kuti muchepetse kuwonongeka kwa kusintha.
MAX5974A/MAX5974B imakhala yozungulira mwapadera kuti ikwaniritse zotuluka popanda kugwiritsa ntchito optocoupler, pomwe MAX5974C/MAX5974D imagwiritsa ntchito njira yachikhalidwe ya optocoupler. Chokulitsa cholakwika chamkati chokhala ndi 1% yofotokozera ndizothandiza kwambiri pakupanga kosagwirizana, kuchotsa kufunikira kwa wowongolera wakunja wa shunt.
Zipangizozi zimakhala ndi cholumikizira chapadera chapaintaneti chomwe chimapangitsa kuti nthawi yayitali ya volt ikhale yosasunthika mosadalira mphamvu yamagetsi, kulola kugwiritsa ntchito mphamvu ya MOSFET yokhala ndi voliyumu yocheperako. The programmable frequency dither ing Mbali imapereka otsika EMI, kufalikira-sipekitiramu ntchito.
Ma MAX5974_ akupezeka muzaka za paketi ya 16-pin TQFN-EP ndipo adavotera kuti azigwira ntchito pa -40°C mpaka +85°C ndi -40°C mpaka +125°C kutentha kwapakati.
● Peak Current-Mode Control, Active-Clamped Forward PWM Controller
● Regulation Without Optocoupler (MAX5974A/ MAX5974B)
● Chokulitsa Cholakwika cha 1% chamkati
● 100kHz mpaka 600kHz Yotheka ±8% Kusintha Kwanthawi Zonse, Kuyanjanitsa Mpaka 1.2MHz
● Programmable Frequency Dithering for Low-EMI, Spread-Spectrum Operation
● Programmable Dead Time, PWM Soft-Start, Current Slope Compensation
● Programmable Feed-Forward Maximum Duty-Cycle Clamp, 80% Maximum Limit
● Frequency Foldback for High-Efficiency Light-Load Operation
● Internal Bootstrap UVLO ndi Large Hysteresis
● 100μA (typ) Yoyambira Yopangira Pano
● Fast Cycle-by-Cycle Peak Current-Limit, 35ns Typical Propagation Delay
● 115ns Current-Sense Internal Leading-Edge Blanking
● Kuteteza Kwakanthawi kochepa kokhala ndi Hiccup Mode
● Bwezerani M'mbuyo Malire Akalipano Kuti Mupewe Machulukitsidwe a Transformer Chifukwa Chakubwerera Kumbuyo
● Internal 18V Zener Clamp pa Supply Input
● 3mm x 3mm, Zopanda Kutsogolera, 16-Pin TQFN-EP
● PoE IEEE® 802.3af/at Powered Devices
● High-Power PD (Beyond the 802.3af/at Standard)
● Ma Active-Clamped Forward DC-DC Converters
● Mafoni a IP
● Ma Wireless Access Node
● Makamera achitetezo
