Asalin TPS23861PWR Canja TSSOP-28 Sport Haɗin Kai Tsaye Chip IC Abubuwan Lantarki

taƙaitaccen bayanin:

TPS23861 mai sauƙin amfani ne, mai sassauƙa, IEEE802.3at PSE bayani.Kamar yadda aka aika, tana sarrafa ta atomatik guda huɗu na 802.3at ba tare da buƙatar kowane iko na waje ba.
TPS23861 yana gano na'urori masu ƙarfi (PDs) ta atomatik waɗanda ke da sa hannu mai inganci, yana ƙayyade buƙatun wuta bisa ga rarrabuwa kuma yana amfani da iko.Ana goyan bayan rabe-raben taron-biyu don nau'in-2 PDs.TPS23861 yana goyan bayan cire haɗin DC kuma tsarin gine-ginen FET na waje yana ba masu ƙira damar daidaita girman, inganci da buƙatun farashin farashi.

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Cikakken Bayani

Tags samfurin

Mai sarrafa wutar lantarki na ciki yana ba da izinin aiki na dogo ɗaya.An ƙara haɓakawa ga HRPWM don ba da izinin sarrafa gefuna biyu (daidaituwar mitar).Ana ƙara masu kwatancen analog tare da nassoshi 10-bit na ciki kuma ana iya tura su kai tsaye don sarrafa abubuwan PWM.ADC tana jujjuya daga 0 zuwa 3.3-V kafaffen kewayon cikakken ma'auni kuma yana goyan bayan nassoshi-metric VREFHI/VREFLO.An inganta ƙirar ADC don ƙananan sama da latency.

Halayen Samfur

TYPE	BAYANI
Kashi	Haɗin kai (ICs) PMIC - Power Over Ethernet (PoE) Masu Gudanarwa
Mfr	Texas Instruments
Jerin	-
Kunshin	Tape & Reel (TR) Yanke Tape (CT) Digi-Reel®
Matsayin Sashe	Mai aiki
Nau'in	Mai Gudanarwa (PSE)
Yawan Tashoshi	4
Power - Max	25.5 W
Canjawa na ciki	No
Hankali na taimako	No
Matsayi	802.3at (PoE+), 802.3af (PoE)
Voltage - Samfura	44-57V
A halin yanzu - wadata	3.5mA ku
Yanayin Aiki	-40°C ~ 85°C
Nau'in hawa	Dutsen Surface
Kunshin / Case	28-TSSOP (0.173 "Nisa 4.40mm)
Kunshin Na'urar Mai bayarwa	28-TSSOP
Lambar Samfurin Tushen	Saukewa: TPS23861

PoE & PSE

PoE kuma ana kiranta Power over Ethernet (PoL, Power over LAN) ko Ethernet Active, ko kuma wani lokacin kawai azaman Power akan Ethernet.
Aikace-aikacen gama gari don PoE sun haɗa da saka idanu na tsaro, wayar IP, da wuraren samun damar mara waya (WAPs).Mai watsa shiri ko na'ura mai tsaka-tsaki da aka yi amfani da shi don samar da wutar lantarki shine kayan aikin wutar lantarki (PSE) .Haɗin da aka haɗa da haɗin Ethernet shine na'urar samar da wutar lantarki (PD).
Ƙa'idar PoE don sarrafa iko tsakanin PSE da PD an bayyana shi ta hanyar IEEE 802.3bt.Ana buƙatar na'ura mai canzawa a tashar tashar tashar tashar Ethernet, tsaka-tsaki, da wuraren ci gaba don kawo bayanai cikin kebul.Bugu da ƙari, ana iya amfani da wutar lantarki na DC zuwa tsakiyar fam ɗin na'urar ba tare da shafar siginar bayanai ba.Kamar yadda yake tare da kowane layin watsa wutar lantarki, wannan fasaha tana amfani da ƙaramin ƙarfin lantarki (kimanin 50V) don kiyaye ƙarancin halin yanzu da rage tasirin faɗuwar wutar lantarki a cikin layin, don haka kiyaye isar da wutar lantarki zuwa kaya.Ma'auni na 2-waya PoE yana ba da kusan 13W zuwa Class 1 PDs da kusan 25.5W zuwa Class 2 PDs, yayin da ma'auni na 4-waya PoE za su iya sadar da kusan 51W zuwa Class 3 PDs da kusan 71W zuwa Class 4 PDs.

Matsayi

Ma'auni uku na samar da wutar lantarki na PoE
1. EEE802.3af Babban sigogi na samar da wutar lantarki.
Wutar lantarki ta DC tsakanin 44 da 57V, ƙimar al'ada ita ce 48V.Aiki na yau da kullun shine 10 zuwa 350mA, ƙarfin fitarwa na yau da kullun: 15.4W.Gano obalodi a halin yanzu shine 350 zuwa 500mA.ƙarƙashin yanayin babu kaya, matsakaicin halin yanzu da ake buƙata shine 5mA.Matakan aji huɗu na buƙatun wutar lantarki daga 3.84 zuwa 12.95W ana ba da su don na'urorin PD.
IEEE802.3af rarrabuwa sigogi.
Na'urorin Class0 suna buƙatar iyakar ƙarfin aiki daga 0 zuwa 12.95W.
Na'urorin Class1 suna buƙatar matsakaicin ƙarfin aiki na 0 zuwa 3.84W.
Na'urorin Class2 suna buƙatar ƙarfin aiki tsakanin 3.85W da 6.49W.
Na'urorin Class3 suna buƙatar kewayon iko na 6.5 zuwa 12.95W.
2. IEEE802.3at (PoE+) Babban sigogi na samar da wutar lantarki.
Wutar lantarki ta DC tana tsakanin 50 da 57V, ƙimar al'ada ita ce 50V.Yanayin aiki na yau da kullun shine 10 zuwa 600mA, ƙarfin fitarwa na yau da kullun: shine 30W.na'ura mai ƙarfi PD tana goyan bayan rarrabuwa Class4.

IEEE802.3bt (PoE++)

Ƙididdiga ta 802.3bt yana gabatar da sabbin manyan rarrabuwa na PD guda huɗu (Class), yana kawo jimlar adadin nau'ikan fasalin guda tara zuwa tara.Class5 zuwa 8 sababbi ne ga ma'aunin PoE kuma suna fassara zuwa matakan ƙarfin PD na 40.0W zuwa 71W.

802.3bt yana dacewa da baya tare da 802.3at da 802.3af.Ƙarƙashin ƙarfin 802.3at ko 802.3af PD ana iya haɗa shi zuwa mafi girman iko 802.3bt PSE ba tare da wata matsala ba.Kuma lokacin da aka haɗa mafi girman iko 802.3bt PD zuwa ƙaramin iko 802.3at ko 802.3af PSE, PDs kawai suna buƙatar samun damar yin aiki a jihohin ƙananan ikon su, wanda ake kira "lalata".

Na baya: TMS320F28069PZPS Kyakkyawan Farashi IC Chip Original Kayan Kayan Wutar Lantarki Haɗaɗɗen kewayawa A cikin Hannun jari

Na gaba: TPS54360BDDAR Intergrated Circuit Ic Chip

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