MAX5974DETE+T Whakawhiti Pūmana Whakawhiti Hohe-Rawhi, Horapa-Awhiowhio, Aratau-Naianei Pūmana PWM
♠ Whakaahuatanga Hua
| Huanga Hua | Uara Huanga |
| Kaihanga: | Maxim Integrated |
| Kāwai Hua: | Whakawhiti Kaiwhakahaere |
| RoHS: | Nga korero |
| Topology: | - |
| Te maha o nga putanga: | 1 Putanga |
| Auautanga Whakawhiti: | 600 kHz |
| Hurihanga Mahi - Max: | 82 % |
| Ngaohiko Whakauru: | 10.5 V |
| Ngaohiko Huaputa: | - |
| Putanga o nāianei: | 1 mA |
| Paemahana Mahi Iti: | -40C |
| Paemahana Mahi Morahi: | + 85 C |
| Kāhua Whakaeke: | SMD/SMT |
| Mōkī / Take: | TQFN-16 |
| Tapeke: | Hurorirori kau |
| Tapeke: | Tapahia te Ripene |
| Tapeke: | KioreReel |
| Waitohu: | Maxim Integrated |
| Wā Hinga: | 14 ns |
| Whakawhiwhinga Whakahaere Naianei: | 1.8 mA |
| Ngaohiko Whakawhiwhi Mahi: | 12 V ki te 21 V |
| Momo Hua: | Whakawhiti Kaiwhakahaere |
| Wā Whakatika: | 27 ns |
| Rangatū: | MAX5974 |
| Te Rahi Wheketere: | 2500 |
| Kāwairoto: | PMIC - Nga IC Whakahaere Hiko |
| Momo: | Aratau o naianei PWM Kaiwhakahaere |
| Wāhanga # Ingoaingoa: | MAX5974 |
♠Active-Rawhi, Horohanga-Awhiowhio, Aratau-Naianei PWM Kaiwhakahaere
Ko te MAX5974_ te mana whakahaere mo te whanui-whakauru-ngaohiko, kaha-rawhi, PWM-aratau o naianei, nga kaitahuri whakamua i roto i nga taputapu Power-over-Ethernet (PoE) powered device (PD). Ko te MAX5974A/MAX5974C e tino pai ana mo te awhe urunga ao, waea waea ranei, i te mea ko te MAX5974B/MAX5974D ka uru ano te ngaohiko whakauru iti ki te 10.5V.
He maha nga waahanga kei roto i nga taputapu hei whakarei ake i te pai o te tuku. Ko te taraiwa AUX ka hangarua i te riihi aukuti, kaua ki te moumou i roto i te ara iahiko rawhi. Ko te wa mate ka taea te whakarite i waenga i te AUX me te taraiwa matua ka taea te whakawhiti kore-ngaohiko (ZVS). I raro i nga tikanga taumaha-maama, ka whakaitihia e nga taputapu te tere o te whakawhiti (rereketanga foldback) hei whakaiti i nga ngaronga whakawhiti.
Ko te MAX5974A/MAX5974B he ara iahiko ahurei ki te whakatutuki i nga ture whakaputa me te kore e whakamahi i te optocoupler, i te mea ko te MAX5974C/MAX5974D te whakamahi i te tikanga urupare optocoupler tuku iho. Ko te whakakaha hapa o roto me te tohutoro 1% he tino whai hua i roto i te hoahoa kore-kore, te whakakore i te hiahia mo te kaiwhakahaere shunt o waho.
Kei roto i nga taputapu he rawhi morahi mahi-huringa-whakamua ahurei e hanga ana i te tau ngaohiko rawhi morahi i roto i nga ahuatanga o te wa e noho motuhake ana i te ngaohiko raina, ka taea te whakamahi i te MOSFET hiko me te ngaohiko pakaru iti iho. Ko te waahanga whakahiato auau ka taea te whakarato i te iti-EMI, te mahi horapa-awhi.
Kei te waatea te MAX5974_ i roto i nga tau 16-pin TQFN-EP me te whakatau mo te mahi i runga i te -40°C ki te +85°C me te -40°C ki te +125°C nga awhe pāmahana.
● Te Mana o naianei-Aratau, Kaiwhakahaere PWM Whakamua Whakamua
● Ture Kore Optocoupler (MAX5974A/ MAX5974B)
● Roto 1% Whakanui Hapa
● 100kHz ki te 600kHz Ka taea te Papatono ± 8% Te Waea Whakawhiti, Tukutahi ki te 1.2MHz
● Rererangi Waahanga Papatono mo te EMI Iti, Te Mahinga Awhiowhio
● Wā Mate Papatono, PWM Soft-Tīmata, Utu Kapeneheihana o naianei
● Rawhi Whakamua-Whakaatu Whakapapatononga Morahi Nga Mahi-hurihuri, 80% Tepe Morahi
● Auautanga Whakamuri mo te Mahi Maama-Kawe-Kairangi
● Roto Bootstrap UVLO me te Hysteresis Nui
● 100μA (typ) Whakaoho Whakaoho Naianei
● Tere Porohita-ma-Porohanga Peak Naianei-Tepe, 35ns Taaroa Whakatootanga Tikanga
● 115ns o naianei-Sense Roto Arahi-Edge Blanking
● Whakaputa Parenga Porowhita-poto me te Aratau Hiccup
● Whakamuri i te Tepe o naianei ki te aukati i te whakamaaramatanga o te huringa na te mea i te waa whakamuri
● Roto 18V Zener Clamp i runga i te Whakauru Whakauru
● 3mm x 3mm, Arata-Kore, 16-Pin TQFN-EP
● PoE IEEE® 802.3af/at Pūrere Powered
● PD Mana Nui (I tua atu i te 802.3af/i Paerewa)
● Nga Kaihurihuri DC-DC Whakamua-a-Hohe
● Waea IP
● Nga Kohanga Uru Ahokore
● Kāmera Haumarutanga
