I-TPS23861PWR yoqobo Tshintsha i-TSSOP-28 yeMidlalo eDityanisiweyo yeSekethe yeChip IC yoMbane

I-TPS23861PWR yoqobo Tshintshela i-TSSOP-28 yeMidlalo eDityanisiweyo yeSekethe yeChip IC yoMfanekiso oMfaniswayo

inkcazelo emfutshane:

I-TPS23861 ilula ukuyisebenzisa, iguquguqukayo, isisombululo se-IEEE802.3at PSE.Njengoko ithunyelwe, ilawula ngokuzenzekelayo ezine ze-802.3at ngaphandle kwesidingo salo naluphi na ulawulo lwangaphandle.
I-TPS23861 ibona ngokuzenzekelayo i-Powered Devices (PDs) enesiginitsha esebenzayo, imisela iimfuno zamandla ngokohlelo kwaye isebenzise amandla.Ukuhlelwa kweziganeko ezibini kuxhaswe ngohlobo lwe-2 PDs.I-TPS23861 ixhasa uqhawulo lwe-DC kunye noyilo lwangaphandle lweFET luvumela abaqulunqi ukuba balinganise ubungakanani, impumelelo kunye neemfuno zeendleko zesisombululo.

Thumela i-imeyile kuthi Khuphela i-Datesheet

Iinkcukacha zeMveliso

Iithegi zeMveliso

Umlawuli wombane wangaphakathi uvumela ukusebenza komzila omnye.Uphuculo lwenziwe kwi-HRPWM ukuvumela ulawulo lwe-double-edge (uhlengahlengiso lwee-frequency).Uthelekiso lwe-analog kunye neereferensi ze-10-bit zangaphakathi zongeziwe kwaye zinokuhanjiswa ngokuthe ngqo ukulawula iziphumo ze-PWM.I-ADC iguqula ukusuka kwi-0 ukuya kwi-3.3-V uluhlu olusisigxina olusisigxina kwaye ixhasa i-ratio-metric reference VREFHI/VREFLO.I-interface ye-ADC iye yalungiselelwa i-overhead ephantsi kunye ne-latency.

Iimpawu zeMveliso

UHLOBO	INKCAZO
Udidi	IiSekethe eziDityanisiweyo (ICs) I-PMIC - Amandla phezu kwe-Ethernet (PoE) abalawuli
Mfr	Texas Instruments
Uthotho	-
Iphakheji	Iteyiphu & neReel (TR) Sika iTape (CT) Digi-Reel®
Ubume benxalenye	Iyasebenza
Uhlobo	Umlawuli (PSE)
Inani lamaShaneli	4
Amandla - Max	25.5 W
Iiswitshi zangaphakathi	No
Imvakalelo eNcedisayo	No
Imigangatho	802.3at (PoE+), 802.3af (PoE)
Voltage - Unikezelo	44V ~ 57V
Okwangoku - Unikezelo	3.5mA
Ubushushu bokusebenza	-40°C ~ 85°C
Uhlobo lokuNqamisa	INtaba engaphezulu
Ipakethe / Ityala	28-TSSOP (0.173", 4.40mm Ububanzi)
Supplier Device Package	28-TSSOP
Inombolo yeMveliso esisiseko	TPS23861

I-PoE kunye ne-PSE

I-PoE ikwabizwa ngokuba yi-Power over Ethernet (PoL, Power over LAN) okanye i-Active Ethernet, okanye ngamanye amaxesha ngokulula njengaMandla phezu kwe-Ethernet.
Izicelo eziqhelekileyo ze-PoE ziquka ukubeka iliso lokhuseleko, i-IP telephony, kunye neendawo zokungena ngaphandle kwamacingo (WAPs).Umamkeli okanye isixhobo esiphakathi esisetyenziselwa ukunika amandla sisixhobo sonikezelo lwamandla (PSE) .Umthwalo oqhagamshelwe kwisidibanisi se-Ethernet sisixhobo sonikezelo lwamandla (PD).
Iprotocol ye-PoE yokulawula amandla omthwalo phakathi kwe-PSE kunye ne-PD ichazwa ngumgangatho we-IEEE 802.3bt.I-transformer iyadingeka kwi-Ethernet host port, midspan, kunye neendawo ze-hub ukuzisa idatha kwintambo.Ukongeza, i-voltage ye-DC inokusetyenziswa kwimpompo ephakathi ye-transformer ngaphandle kokuchaphazela isignali yedatha.Njengawo nawuphi na umgca wothumelo lwamandla, obu buchwephesha busebenzisa umbane ophezulu ngokwentelekiso (malunga ne-50V) ukugcina ikhoyo ngoku ephantsi kunye nokunciphisa isiphumo sokuhla kwamandla ombane we-IR kumgca, ngaloo ndlela kugcinwe ukuhanjiswa kwamandla kumthwalo.Umgangatho we-2-wire pair PoE uhambisa malunga ne-13W kwi-Class 1 PDs kwaye malunga ne-25.5W ukuya kwi-Class 2 PDs, ngelixa i-4-wire pair pair PoE iya kukwazi ukuhambisa malunga ne-51W kwi-Class 3 PD kunye malunga ne-71W kwi-Class 4 PDs.

Imigangatho

Imigangatho emithathu yobonelelo lwamandla e-PoE
1. EEE802.3af Iiparamitha zobonelelo lwamandla eziphambili.
Umbane we-DC phakathi kwe-44 kunye ne-57V, ixabiso eliqhelekileyo yi-48V.ukusebenza okuqhelekileyo okwangoku yi-10 ukuya kwi-350mA, amandla aphumayo aqhelekileyo: 15.4W.Ukufunyanwa komthwalo okhoyo ngoku ngama-350 ukuya kuma-500mA.phantsi kweemeko zokungabikho komthwalo, ubuninzi obufunekayo ngoku yi-5mA.Amanqanaba amane eKlasi yezicelo zamandla ombane ukusuka kwi-3.84 ukuya kwi-12.95W inikezelwa kwizixhobo zePD.
IEEE802.3af iiparamitha zokuhlela.
Izixhobo zeClass0 zifuna amandla okusebenza aphezulu kwi-0 ukuya kwi-12.95W.
Izixhobo zeClass1 zifuna amandla okusebenza aphezulu kwi-0 ukuya kwi-3.84W.
Izixhobo zeClass2 zifuna amandla okusebenza phakathi kwe-3.85W kunye ne-6.49W.
Izixhobo zeClass3 zifuna uluhlu lwamandla lwe-6.5 ukuya kwi-12.95W.
2. IEEE802.3at (PoE +) Iiparamitha zokubonelela ngamandla.
I-voltage ye-DC iphakathi kwe-50 kunye ne-57V, ixabiso eliqhelekileyo yi-50V.Ukusebenza okuqhelekileyo okwangoku yi-10 ukuya kwi-600mA, amandla aphumayo aqhelekileyo: yi-30W.Isixhobo esinamandla sePD sixhasa ulwahlulo lweClass4.

IEEE802.3bt (PoE++)

Ukucaciswa kwe-802.3bt kwazisa iindidi ezine zePD eziphezulu zamandla aphezulu (iKlasi), izisa inani elipheleleyo leeklasi zento enye ukuya kwisithoba.I-Class5 ukuya kwi-8 entsha kumgangatho we-PoE kwaye iguqulela kumanqanaba amandla e-PD ye-40.0W ukuya kwi-71W.

I-802.3bt ibuyela ngasemva iyahambelana ne-802.3at kunye ne-802.3af.Amandla angaphantsi kwe-802.3at okanye i-802.3af PD inokudibaniswa kumandla aphezulu 802.3bt PSE ngaphandle kweengxaki.Kwaye xa amandla aphezulu 802.3bt PD eqhagamshelwe kumandla asezantsi 802.3at okanye 802.3af PSE, i-PDs kufuneka nje ukuba bakwazi ukusebenza kumazwe abo aphantsi amandla, leyo ibizwa ngokuba "ukuthotywa".

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