TPS23861PWR Hoʻololi TSSOP-28 Sport Integrated Circuit Chip IC Electronic Components
Hiki i ka mea hoʻoponopono voltage kūloko ke hana hoʻokahi-rail.Ua hoʻonui ʻia ka HRPWM no ka ʻae ʻana i ka mana ʻelua ʻaoʻao (frequency modulation).Ua hoʻohui ʻia nā mea hoʻohālikelike analog me nā kuhikuhi 10-bit kūloko a hiki ke hoʻokele pololei ʻia e hoʻokele i nā huahana PWM.Hoʻololi ka ADC mai ka 0 a hiki i ka 3.3-V paʻa i ka laulā piha a kākoʻo i ka ratio-metric VREFHI/VREFLO kuhikuhi.Ua hoʻolālā ʻia ka interface ADC no ka haʻahaʻa haʻahaʻa a me ka latency.
Huahana Huahana
| ANO | HOIKE |
| Māhele | Nā Kaapuni Hoʻohui (IC) PMIC - Nā Mana Mana Ma luna o Ethernet (PoE). |
| ʻO Mfr | Nā mea kani ʻo Texas |
| moʻo | - |
| Pūʻolo | Lepe & Reel (TR) ʻOki lipine (CT) Digi-Reel® |
| Kūlana Māhele | ʻeleu |
| ʻAno | Manaʻo (PSE) |
| Ka helu o na Kanal | 4 |
| Mana - Max | 25.5 W |
| Huli Kūloko | No |
| Manaʻo kōkua | No |
| Nā kūlana | 802.3at (PoE+), 802.3af (PoE) |
| Voltage - Hoʻolako | 44V ~ 57V |
| ʻO kēia manawa - lako | 3.5mA |
| Ka Mahana Hana | -40°C ~ 85°C |
| ʻAno kau ʻana | Mauna ʻili |
| Pūʻolo / hihia | 28-TSSOP (0.173", 4.40mm Laulā) |
| Pūʻolo Mea Mea Hoʻolako | 28-TSSOP |
| Helu Huahana Kumu | TPS23861 |
PoE & PSE
Ua ʻike ʻia ʻo PoE ʻo Power over Ethernet (PoL, Power over LAN) a i ʻole Active Ethernet, a i kekahi manawa ma ke ʻano he Power over Ethernet.
ʻO nā noi maʻamau no ka PoE ka nānā ʻana i ka palekana, ke kelepona IP, a me nā wahi komo uea (WAP).ʻO ka mea hoʻokipa a i ʻole ka waena waena i hoʻohana ʻia e hoʻolako i ka mana, ʻo ia ka lako lako mana (PSE).
ʻO ka protocol PoE no ka hoʻomaluʻana i ka mana ukana ma waena o ka PSE a me ka PD i weheweheʻia e ka maʻamau IEEE 802.3bt.Pono ka mea hoʻololi ma ka Ethernet host port, midspan, a me nā wahi hub e lawe mai i ka ʻikepili i ke kaula.Eia kekahi, hiki ke hoʻohana ʻia kahi puʻupuʻu DC i ke kī waena o ka mea hoʻololi me ka ʻole o ka hoʻopili ʻana i ka hōʻailona ʻikepili.E like me kekahi laina hoʻoili mana, hoʻohana kēia ʻenehana i kahi voli kiʻekiʻe (ma kahi o 50V) e mālama i ka haʻahaʻa o kēia manawa a hoʻemi i ka hopena o ka hāʻule ʻana o ka volta IR i ka laina, pēlā e mālama ai i ka hāʻawi ʻana i ka mana i ka ukana.Hāʻawi ka PoE 2-wire maʻamau ma kahi o 13W i ka Papa 1 PD a ma kahi o 25.5W a i ka Papa 2 PD, aʻo ka PoE maʻamau e hiki ke hāʻawi i kahi 51W i ka Papa 3 PD a ma kahi o 71W i ka Papa 4 PD.
Nā kūlana
ʻEkolu mau kūlana o ka lako mana PoE
1. EEE802.3af Nā kaha lako mana nui.
ʻO ka uila DC ma waena o 44 a me 57V, ʻo 48V ka waiwai maʻamau.ʻO ka hana maʻamau o kēia manawa he 10 a 350mA, ka mana puka maʻamau: 15.4W.ʻO 350 a 500mA ka nui o ka ʻike ʻana i kēia manawa.ma lalo o nā kūlana haʻahaʻa ʻole, ʻo 5mA ka palena kiʻekiʻe i koi ʻia.ʻehā mau papa o nā noi mana uila mai 3.84 a i 12.95W i hāʻawi ʻia no nā mea PD.
IEEE802.3af hoʻohālikelike hoʻohālikelike.
Pono nā polokalamu Class0 i ka mana hana kiʻekiʻe loa o 0 a 12.95W.
Pono nā polokalamu Class1 i ka mana hana kiʻekiʻe o 0 a 3.84W.
Pono nā polokalamu Class2 i ka mana hana ma waena o 3.85W a me 6.49W.
Pono nā polokalamu Class3 i ka mana o 6.5 a 12.95W.
2. IEEE802.3at (PoE+) Nā ʻāpana lako mana nui.
Aia ka volta DC ma waena o 50 a me 57V, he 50V ka waiwai maʻamau.ʻO ka hana maʻamau o kēia manawa he 10 a 600mA, ka mana puka maʻamau: ʻo 30W.Kākoʻo ʻo PD i ka hoʻokaʻawale ʻana o Class4.
IEEE802.3bt (PoE++)
Hōʻike ka 802.3bt kikoʻī i ʻehā mau mana PD mana kiʻekiʻe (Class), e lawe ana i ka huina o nā papa hiʻohiʻona hoʻokahi i ʻeiwa.He mea hou ka papa 5 a 8 i ka maʻamau PoE a unuhi i nā pae mana PD o 40.0W a 71W.
ʻO 802.3bt ka mea kūpono i hope me 802.3at a me 802.3af.Hiki ke hoʻopili ʻia kahi mana haʻahaʻa 802.3at a i ʻole 802.3af PD i kahi mana kiʻekiʻe 802.3bt PSE me ka pilikia ʻole.A i ka wā e hoʻopili ʻia ai kahi mana kiʻekiʻe 802.3bt PD i kahi mana haʻahaʻa 802.3at a i ʻole 802.3af PSE, pono e hiki i nā PD ke hana ma ko lākou mau mana haʻahaʻa haʻahaʻa, i kapa ʻia ʻo "degradation".
