MICROCHIP AN3468 HDBaseT Ụdị 3 Ngwaọrụ kwadoro akwụkwọ ntuziaka onye nwe

Ihe ndetu ngwa a na-enye ntuziaka maka imepụta sistemu ike na-akwado Ethernet (PoE) maka ngwaọrụ IEEE® 802.3af, IEEE 802.3at, HDBaseT (PoH), yana ngwa Universal Power Over Ethernet (UPoE) site na iji ezinụlọ Microchip nke okirikiri gbakwunyere n'ihu njedebe PD. Tebụlụ na-esote depụtara onyinye ngwaahịa Microchip PD.

Tebụl 1. Onyinye Ngwaahịa Ngwa Microchip kwadoro

Akụkụ	Ụdị	ngwugwu	IEEE® 802.3 n'arọ	IEEE 802.3 na	HDBaseT (PoH)	UPoE
PD70100	Ihu njedebe	3 mm × 4 mm 12L DFN	x	-	-	-
PD70101	N'ihu njedebe + PWM	5 mm × 5 mm 32L QFN	x	-	-	-
PD70200	Ihu njedebe	3 mm × 4 mm 12L DFN	x	x	-	-
PD70201	N'ihu njedebe + PWM	5 mm × 5 mm 32L QFN	x	x	-	-
PD70210	Ihu njedebe	4 mm × 5 mm 16L DFN	x	x	x	x
PD70210A	Ihu njedebe	4 mm × 5 mm 16L DFN	x	x	x	x
PD70210AL	Ihu njedebe	5 mm × 7 mm 38L QFN	x	x	x	x
PD70211	N'ihu njedebe + PWM	6 mm × 6 mm 36L QFN	x	x	x	x
PD70224	Akwa diode dị mma	6 mm × 8 mm 40L QFN	x	x	x	x

Microchip na-enye ngwaọrụ PD kwụ ọtọ n'ihu nke chọrọ PWM IC mpụga iji tụgharịa PoE vol.tage gbadaa na ọkọnọ ahaziri voltage ji ngwa. Na mgbakwunye, Microchip na-enye ngwaọrụ PD na-ejikọta PD n'ihu na PWM n'ime ngwugwu ngwaahịa. Ogo nke ndetu ngwa a bụ ịkọwapụta atụmatụ nke n'ihu PoE PD site na iji Microchip n'ihu naanị ngwaahịa (PD701x0 na PD702x0). Akwụkwọ a tinyekwara nkọwa nke njirimara na ọrụ nke ngwaahịa PD Microchip, nkenkeview nke PoE arụmọrụ, ụkpụrụ na isi oru echiche maka a PoE PD imewe.
Ngwaahịa PD dị n'ihu na-enye nchọpụta dị mkpa, nhazi ọkwa, ọrụ ike ọkụ, na ọkwa na-arụ ọrụ ugbu a kwekọrọ n'ụkpụrụ edepụtara.
Microchip na-enye ngwaahịa nkwado maka ngwa PoE PD, PD70224 Ideal Diode Bridge, nke bụ ụzọ dị ala na-efunahụ maka àkwà mmiri diode abụọ maka nchedo polarity ntinye.
Microchip na-enye ngwugwu nrụtụ aka zuru oke yana bọọdụ nyocha (EVBs). Maka ịnweta ngwungwu imewe ndị a, mpempe data ngwaọrụ, ma ọ bụ ndetu ngwa, biko kpọtụrụ onye njikwa ntinye aka ndị ahịa Microchip mpaghara ma ọ bụ gaa na nke anyị. websaịtị na www.microchip.com/poe.
Maka nkwado teknụzụ, kpọtụrụ Injinia Ngwọta agbakwunyere nke mpaghara gị ma ọ bụ gaa na microchipsupport.force.com/s/.

Akụkụ isi ihe njikwa Microchip PoE ihu-ọgwụgwụ PD

Ihe ndị a bụ njirimara nkịtị nke Microchip PoE niile

Ndị na-ahụ maka PD.
PD mbinye aka nchọpụta
mbinye aka nhazi ọkwa PD mmemme
Mgbanwe iche iche agbakwunyere
24.9 k nkwụsị mbinye aka mbinye aka mgbe ike dị, maka ịchekwa ike
Oke inrush dị ugbu a (mmalite dị nro)
Ntinye mmalite mmalite 10.5V jikọtara ọnụ maka ndị ntụgharị DC-DC
Nchekwa oke ibu
Sekit mwepu nke ime maka DC-DC nnukwu capacitor
Ogologo okpomọkụ na-arụ ọrụ 40 °C ruo 85 Celsius
Nchekwa okpomọkụ On-Chip

Tebụlụ na-esote depụtara atụmatụ dị iche iche n'ofe ndị njikwa PoE PD.
Isiokwu 2. Microchip PoE Front-End PD Controller Key Atụmatụ

Nọmba akụkụ	Ụdị IC	Ụkpụrụ	Oke. Ike (W)	Oke. Ugbu a (A)	Oke. Nguzogide (Ω)	Ọkọlọtọ 1	WA Ibu ụzọ Pin 2	VAUX
PD70100	Ihu njedebe	IEEE 802.3af	15.4	0.45	0.6	PGOOD	Mba	Ee
PD70200	Ihu njedebe	IEEE 802.3af IEEE 802.3 na	47	1.123	0.6	NA PGOOD 2-omume	Mba	Ee
PD70210A/AL	Ihu njedebe	IEEE 802.3af IEEE 802.3 na PoH UPoE	95	2	0.3	Na 4P_AT HD 4P_HD 2/3 omume	Ee	Ee
PD70210	Ihu njedebe	IEEE 802.3af IEEE 802.3 na PoH UPoE	95	2	0.3	Na 4P_AT HD 4P_HD PGOOD 2/3 omume	Mba	Ee
PD70224	Diode kacha mma Akwa akwa	IEEE 802.3af IEEE 802.3 na PoH UPoE	95	2	0.76	N/A	N/A	N/A

Maka nkọwa zuru ezu, lee 4. Ozizi Ọrụ izugbe.
a. AT-AT ọkọlọtọ
b. 4P_AT—ọkọlọtọ anọ AT
c. HD—ọkọlọtọ HDBaseT
d. 4P_HD—4-ụzọ HDBaseT
e. PGOOD—Ike Ezi ọkọlọtọ
WA mkpa pin na-akwado nkwado ọrụ nkwụnye mgbidi ma na-amanye mkpa inye aka inye ibu ahụ site na isi iyi DC dị na mpụga.

PoE gafereview

PoE nwere isi iyi ike, nke a na-akpọ Power Source Equipment (PSE), eriri Ethernet ma ọ bụ Network (nke a na-enwekarị na akụrụngwa) nke nwere ogologo mita 100, yana Ngwaọrụ kwadoro (PD) nke na-anabata ma data na ike sitere na Interface Power (PI) nke eriri Ethernet. PI na-abụkarị njikọ ụdị RJ45 asatọ. PSE na-ebikarị na Ethernet Switch ma ọ bụ Midspan. PD bi na ihe a na-akpọ mgbe ụfọdụ dị ka Data Terminal Equipment (DTE). Ọnụọgụ ndị a na-egosi eserese nke nhazi a.

Ọgụgụ 1-1. Ike abụọ n'elu data - Nhọrọ A

Ọgụgụ 1-2. Abụọ-mmadụ ike n'elu mapụtara- Nhọrọ B

Ọgụgụ 1-3. Eserese PD Block bụ isi

PD na-enye ọrụ ndị a.

Nchekwa polarity–voltage polarity na PI anaghị ekwe nkwa site n'ụkpụrụ. Ya mere, a na-eji akwa diode iji hụ na polarity ziri ezi na ntinye PD. Maka mfu ike kachasị na mpaghara PCB, jiri Microchip PD70224 Ideal Diode Bridge. A pụkwara iji akwa mmiri diode ọkọlọtọ mee ihe.

Nchọpụta-na-enye mbinye aka maka nchọpụta.
Nhazi – na-enye mbinye aka maka mbinye aka nhazi ọkwa.
Mmalite-mgbe nchọpụta na nhazi ọkwa, na-enye ngwa ike na-achịkwa.
Mwepu-ngalaba PoE ga-enwerịrị ikewapụ 1500 VAC site na ala ụwa yana akụkụ ndị ọrụ nwere ike ịnweta. A na-atụ aro ịnye ikewapụ nke a site na ngbanwe DC/DC dịpụrụ adịpụ. Site na atụmatụ ndị na-abụghị ndị dịpụrụ adịpụ, ngwa njedebe ga-enyerịrị nke a. Enwere echiche na imewe na-anọghị iche na-echekwa ọnụ ahịa, mana n'eziokwu nke a abụghị eziokwu n'ihi na ị ka kwesịrị ịnye nhụsianya nke onye njikwa mgbe mmalite mmalite, nke pụtara inductor omenala nwere mkpuchi akpụkpọ ụkwụ inyeaka.
VAUX – nhụsianya maka mmalite DC/DC. Microchip PoE PD IC niile nwere voltage mmepụta, VAUX, nke a ga-eji mee ihe dị ka mmalite mmalite maka njikwa DC/DC mpụga. VAUX bụ mmepụta okirikiri ọrụ dị ala, na-enye ugbu a nwa oge ruo mgbe ọkọnọ bootstrap mpụga nwere ike weghara.

Onye njikwa PWM na DC/DC-na-atụgharị PoE voltage gbadaa na ọkọnọ a na-ahazi voltage ji ngwa. PWM nwere ike ịbụ ngwaọrụ Microchip mpụga ma ọ bụ tinye n'ime ngwugwu Microchip PD.
Tebụl ndị a na-atụnyere ụkpụrụ PoE maka PSE na PD. Ọkọlọtọ HDBaseT (PoH) na-esote IEEE 802.3at ụdị 2 ụdị USB. Otú ọ dị, n'ihi na ọ dị elu na-akwado ugbu a, ọ na-amachi ọnụ ọgụgụ nke eriri na otu eriri eriri.

Isiokwu 1-1. IEEE 802.3af, 802.3at, na HDBaseT ụkpụrụ maka PSE

Ihe achọrọ PSE	IEEE® 802.3af ma ọ bụ IEEE 802.3 na Ụdị 1	IEEE 802.3 na Ụdị 2	2-Pair HDBaseT Ụdị 3	4-Pair HDBaseT Ụdị 3
Ekwadoro ike na Mmepụta PSE	15.4W	30W	47.5W	95W
PSE mmepụta voltage	44V ruo 57V	50V ruo 57V	50V ruo 57V	50V ruo 57V
Ekwenyere ugbu a na	350mA DC na elu	600mA DC na elu	950mA DC na elu	2x950mA DC nwere
Mmepụta PSE	ruo 400 mA kacha elu	ruo 686 mA kacha elu	ruo 1000 mA kacha elu	ruo 2000 mA kacha elu
Nkwụsị akaghị eriri USB kacha	200	12.50	12.50	12.50
Nhazi oyi akwa anụ ahụ	Nhọrọ	Amanyere iwu	Amanyere iwu	Amanyere iwu
Klas nhazi oyi akwa anụ ahụ akwadoro	Klas 0 ruo 4	Klas 4 bụ iwu	Klas 4 bụ iwu	Klas 4 bụ iwu
Nkewa njikọ data	Nhọrọ	Nhọrọ	Nhọrọ	Nhọrọ
2-Nhazi ihe omume	Ọ dịghị mkpa	Amanyere iwu	Ọ dịghị mkpa	Ọ dịghị mkpa
3-Nhazi ihe omume	Ọ dịghị mkpa	Ọ dịghị mkpa	Amanyere iwu	Amanyere iwu
4- ụzọ abụọ ike nri	Ekweghị	ekwe	NA	ekwe
Nkwukọrịta	10/100 BaseT	10/100/1000 BaseT	10/100/1000/	10/100/1000/
Nkwukọrịta kwadoro	10/100 BaseT (Midspan) 10/100/1000 BaseT (mgbanwe)	10/100/1000 BaseT gụnyere Midspans (ụdị 1 na ụdị 2)	10/100/1000/ 10000 BaseT	10/100/1000/ 10000 BaseT

Isiokwu 1-2. IEEE 802.3af, 802.3at, na HDBaseT ụkpụrụ maka PD

PD chọrọ	IEEE 802.3af ma ọ bụ IEEE 802.3at Ụdị 1	IEEE 802.3 na Ụdị 2	Ụdị HDBaseT 3
Ike ekwenyere na ntinye PD ka eriri 100 m gachara	12.95W	25.50W	72.40W
Ntinye PD voltage	37V ruo 57V	42.5V ruo 57V	38.125V ruo 57V
Oke DC ugbu a na ntinye PD	350 mA	600 mA	1.7A
Nhazi oyi akwa anụ ahụ	Amanyere iwu (Enweghị klas = Klas 0)	Amanyere iwu	Amanyere iwu
Klas nhazi oyi akwa anụ ahụ akwadoro	Klas 0 ruo 4	Klas 4 bụ iwu	Klas 4 bụ iwu
Nkewa njikọ data	Nhọrọ	Nhọrọ	Nhọrọ
2-Nhazi ihe omume	Ọ dịghị mkpa	Amanyere iwu	Nhọrọ
4-pair ike ịnata	ekwe	ekwe	Na-akwado
Nkwado nkwado	10/100 BaseT (Midspan) 10/100/1000 BaseT (mgbanwe)	10/100/1000 BaseT gụnyere Midspans (ma ụdị 1 na ụdị 2)	10/100/1000/10000 Ntọala

DC voltage site waya ụzọ abụọ nwere ike ịbụ nke ma polarity. Iji nabata njikọ niile nke ike PoE dị na PI, a chọrọ iji PD70224 Ideal Diode Bridge ma ọ bụ akwa abụọ diode n'akụkụ PD.
N'ime oge nchọpụta, ụkpụrụ na-akọwapụta ụzọ iji chọpụta ma eriri USB ejikọrọ na ọkọlọtọ PD, nke ahụ bụ ngwaọrụ nwere ike ịnweta ike, jikọọ na ngwaọrụ enweghị ike ịnweta ike ma ọ bụ kwụsịrị.
Ụkpụrụ ndị a na-akọwawakwa ụzọ nke ịchọpụta ike chọrọ ma ọ bụ ike ole PD jikọtara ya na-enwe ike ịnata na ụzọ ndị PD nwere ike isi chọpụta ọkwa ike nke PSE na-akwado. A na-akpọ nke a oge nhazi ọkwa.
PSE na-ekwenye ekwenye anaghị etinye ike ịrụ ọrụ na PI ruo mgbe ọ chọpụtala nke ọma PD kwadoro PoE. N'oge oge nchọpụta, PSE na-etinye usoro nke obere voltajitage test usu n'etiti 2.80V na 10.0V. Na nzaghachi na pulses ndị a, onye na-akwado PD ga-enye mbinye aka dị mma, nke chọrọ nkwụsị dị iche n'etiti 23.7 k na 26.3 k na ntinye ntinye n'etiti 50 nF na 120 nF. Iji nye nguzogide nchọpụta ziri ezi, ndị na-ahụ maka Microchip PoE PD niile chọrọ ihe mgbochi 24.9k mpụga. Ejikọrọ ihe mgbochi a n'etiti VPP na RDET ngwaọrụ PD. Mgbe onye njikwa Microchip PD na-elele ntinye voltage na nchoputa 2.7V ruo 10.1V, ọ na-ejikọta resistor a na PI. Mgbe usoro nchọta gachara, onye na-ahụ maka Microchip na-ewepụ ihe mgbochi nchọpụta na-akpaghị aka iji zere mfu ọkụ ọzọ. A ga-ejikọrịrị eriri seramiiki 100V n'etiti VPP na VPN na ntụtụ ngwaọrụ PD iji nye ikike nchọpụta ziri ezi (ụkpụrụ akwadoro 82 nF ruo 100 nF).
Mgbe achọpụtara mbinye aka dị mma, PSE nwere ike ịmalite usoro nhazi ọkwa. Nhazi bụ nhọrọ maka 802.3af na 802.3at ụdị 1 PSEs na PDs; ma bụrụ iwu maka 802.3at ụdị 2 na PoH. PSE na-abawanye voltage n'ime voltage nso nke 15.5V ruo 20.5V maka oge a kapịrị ọnụ. A na-akpọ nke a mkpịsị aka nhazi ọkwa. Ọ bụrụ na achọrọ ihe karịrị otu mkpịsị aka, a na-ekewa mkpịsị aka nhazi ọkwa site na ihe a na-akpọ akara voltage, ebe PSE wedata voltage na nso n'etiti 6.3V ka 10.1V, ọzọ maka oge a kapịrị ọnụ.
Mgbe nhazi ọkwa voltage ma ọ bụ mkpịsị aka klaasị na-etinye, PD ahụ ga-esetịpụ ihe na-adịgide adịgide iji gosi klaasị ya. N'ime ndị na-ahụ maka Microchip a na-ahazi mbinye aka nhazi ọkwa site na resistor RCLS ejikọrọ n'etiti ngwaọrụ PD RCLS na VPN na ntụtụ. Mgbe ntinye voltage nọ na oke nhazi, PD na-adọta ugbu a nke RCLS mere.
Achọrọ IEEE 802.3at ụdị 2 kwekọrọ PD iji mata nhazi nke mmemme 2 wee nye sekit n'ime sekit akara ọkọlọtọ AT nke na-egosi PD jikọọ na ụdị AT 2 kwadoro PSE.
A chọrọ PoH ụdị 3 kwadoro PD maka ịmata ọkwa nke mmemme 3 ma nye sekit dị n'ime akara ọkọlọtọ HDBaseT nke na-egosi PD jikọtara na HDBaseT ụdị 3 kwadoro PSE.
Ọ bụrụ na ọdụ ụgbọ mmiri voltage ugbu a na PI dobe dị n'okpuru 2.8V, PSE ozi klaasị reset na PD ga-tọgharịa ọkọlọtọ dabere na klas.
Microchip PoE PD nwere ngbanwe dịpụrụ adịpụ nke na-ewepụ akụkụ nloghachi nke PD na PI n'oge nchọpụta na nhazi ọkwa, ma ọ bụ n'oge mfu na ibufe ike. PD na-atụgharị ngbanwe ikewapụ na PI voltage ọkwa 42V ma ọ bụ karịa wee gbanyụọ ngbanwe dịpụrụ adịpụ na PI voltage n'okpuru 30.5V. Ha na-amachikwa ihe dị ugbu a n'oge mmalite ruo 350 mA ma ọ bụ obere.
Ọnụọgụ ndị a na-egosi nchọpụta PoE bụ isi, nhazi ọkwa, na usoro nkwalite maka ụdị 1 IEEE 802.3af na ụdị 2 IEEE 802.3at, n'otu n'otu. Edepụtara ọkwa klaasị, mmiri ha kwekọrọ, na ndị na-emegide RCLS akwadoro na Tebụlụ 1-3.

Ọgụgụ 1-4. Nchọpụta PoE bụ isi, nhazi ọkwa na usoro nkwalite maka IEEE 802.3af Standard

Ọgụgụ 1-5. Nchọpụta PoE bụ isi, nhazi ọkwa na usoro nkwalite maka 802.3at Standard

Isiokwu 1-3. Nhazi nkọwapụta ugbu a yana ndị mmegide ntọala klaasị achọrọ

Klas	PD dị ugbu a n'oge nhazi ọkwa			Uru Nguzogide RCLASS, Ω
Klas	Min	Aha aha	Oke.	Uru Nguzogide RCLASS, Ω
0	0 mA	NA	4 mA	Ewụnyeghị
1	9 mA	10.5 mA	12 mA	133
2	17 mA	18.5 mA	20 mA	69.8
3	26 mA	28 mA	30 mA	45.3
4	36 mA	40 mA	44 mA	30.9

Mara: Ntinye PD voltage n'oge nhazi ọkwa bụ 14.5V ka 20.5V.

Iji PD702x0 na PD701x0 ICs

Enwere ike iji PD702x0 na PD701x0 ICs maka usoro 2-pair na 4-pair, dị ka egosiri na ọnụ ọgụgụ na-esonụ. Ihe mmepụta sitere na àkwà mmiri diode abụọ jikọtara na VPP (ụgbọ ala dị mma) na VPNIN (ụgbọ ala na-adịghị mma). Njikọ mmepụta na DC/DC ntụgharị / ngwa na-eme n'etiti VPP na VPNOUT. Ọgụgụ 2-1. Nhazi 2- ma ọ bụ 4-Pair na-enwe otu PD70210/A/AL IC

Na mgbakwunye na njikọ ntinye/mpụta bụ isi, a chọrọ akụrụngwa mpụga ndị a maka ngwa a na-ahụkarị:

resistor nchọpụta: Jikọọ resistor 24.9 k ± 1% n'etiti VPP na RDET pin. A na-eji resistor a weta mbinye aka nchọpụta. A obere wattage nwere ike iji ụdị e mee ihe n'ihi na enwere ihe na-erughị 7 mW nrụgide na resistor a mgbe oge nchọpụta na-arụ ọrụ, a na-ewepụkwa resistor mgbe ike gbanyechara.
Reference resistor: Ekwesịrị ijikọ ihe ngbanwe ntọala resistor ugbu a maka sekit nke ime n'etiti pin RREF na VPNIN. Jikọọ 60.4 k ± 1% resistor maka PD70210/A/AL ICs na 240 k ±1% maka PD70100/PD70200. Ihe mgbochi a ga-adịrịrị nso IC. Obere obere wattage nwere ike iji ụdị e mee ihe (nkwụsị ike na-erughị 1 mW).

Nkewa resistor ugbu a: Uru nke resistor ejikọrọ n'etiti RCLASS pin na VPNIN na-ekpebi ihe osise PD dị ugbu a n'oge nhazi ọkwa. A na-enye ụkpụrụ ndị dabara na ọkwa nhazi IEEE na tebụl gara aga.
Ntinye capacitor: IEEE chọrọ ikike n'etiti 50 nF na 120 nF nọ n'etiti VPP na VPNIN maka mbinye aka nchọpụta ziri ezi. Maka ịrụ ọrụ kacha mma yana ichebe mgbawa site na volta dị nkọtagNa transients, Microchip na-atụ aro iji seramiiki capacitor 82 nF ruo 100 nF kwa 100V. Ọ ga-adị nso dị ka ihe bara uru na mgbawa.

Ntinye TVS: Ọ bụrụ na ejiri akwa diode, maka nchebe bụ isi megide ọkwa ọkwa voltage transients (<1 kV), ma 10 × 700 µS ma ọ bụ 1.2 × 50 µS, a 58V TVS (dị ka SMBJ58A ma ọ bụ ihe kwekọrọ) ga-ejikọta n'etiti VPP pin na VPNIN. Ọ bụrụ na eji PD70224 na-arụ ọrụ akwa mmiri ma ọ bụ iji gboo mkpa nke IEC/EN 61000-4-5 (2014 Ed.3), ITU-T K21, na GR-1089, wee hụ Ihe ndetu ngwa Microchip AN3410.
SUPP_S1 yana ntinye SUPP_S2 (PD70210/A/AL naanị): 10k resistors ga-ejikọta ya n'usoro na nke ọ bụla n'ime ntinye ntinye SUPP_S1 na SUPP_S2. Ihe nrịbama maka ntụtụ ndị a na-abịa site na ntụtụ kwekọrọ ekwekọ nke àkwà mmiri na-arụ ọrụ PD70224, ma ọ bụ site na ihe ndozi inyeaka ma ọ bụrụ na ejiri àkwà mmiri diode mgbe niile dị ka egosiri na ọnụ ọgụgụ bu ụzọ. Ntinye ndị a dị na PD70210/A/AL na-enye ohere ịtọ ntọala AT na 4-pair AT flags nwere ụfọdụ ihe nketa 4-pair midspans nke na-enye naanị otu usu ọkwa n'otu ụzọ abụọ ọ bụla. Ọ bụrụ ntụtụ SUPP_S1 na SUPP_S2 ghe oghe, ọnọdụ ọkọlọtọ dị na PD70210/A/AL bụ kwa tebụl na-esonụ.

Isiokwu 2-1. Ọkwa nke ọkọlọtọ PD70210/A/AL mgbe SUPP_S1 na SUPP_S2 ejikọtaghị ya.

Ọnụọgụ nke mkpịsị aka (N-Event Nhazi)	AT ọkọlọtọ	Ọkọlọtọ HDBaseT	4-Mkpokọta AT ọkọlọtọ	4-Pair HDBaseT ọkọlọtọ
1	Ndewo Z	Ndewo Z	Ndewo Z	Ndewo Z
2	0 V	Ndewo Z	Ndewo Z	Ndewo Z
3	0 V	0 V	Ndewo Z	Ndewo Z
4	0 V	0 V	0 V	Ndewo Z
5	0 V	0 V	0 V	Ndewo Z
6	0 V	0 V	0 V	0 V

Ike dị mma (PD70100, PD70200, na PD70210 naanị): Ike mgbapu mepere emepe dị na ntụtụ PGOOD. Mgbe ịmalitechara, ọkọlọtọ PGOOD na-ewepụta obere voltage gbasara VPNOUT iji gwa ngwa ahụ na ụgbọ okporo ígwè dị njikere. Mbuli elu voltage na ntụtụ a nwere oke na 20V maka PD70210 yana na VPP voltage maka PD7010x/PD7020x. Enwere ike ịdọrọ ike dị mma site na mmepụta ikuku bootstrap nke DC-DC, na nke a, ọ ga-adịpụrụ adịpụ site na Schottky diode si VAUX iji gbochie ihe ọzọ dị ugbu a site na VAUX n'oge mmalite.
Mara: Ọ bụrụ na ejiri PGOOD bido ngwa mpụga, ngwa a ga-enyerịrị 80 ms inrush na igbu oge steeti arụ ọrụ nke IEEE 802.3 chọrọ.

Ọkọlọtọ na-akọ ụdị PSE: Ọkọlọtọ ndị a nwere ike ịbụ sampnke ngwa a na-eduzi iji kpebie oke ike iri. Ọkọlọtọ ndị a niile bụ mkpọpu mmiri mepere emepe. Mbuli elu voltage na ntụtụ ndị a niile nwere oke na 20V maka PD70210/A/AL, yana na VPP vol.tage maka PD70200/PD70100. Enwere ike ịdọrọ ọkọlọtọ site na mmepụta ikuku bootstrap nke DC-DC, na nke a, a ga-ekewapụ ya site na Schottky diode site na VAUX. A na-edobe ọkọlọtọ steeti naanị otu ugboro na mmalite ọdụ ụgbọ mmiri ma kwenye na opekata mpe 80 ms igbu oge iji gosi ngwa na-ebute igbu oge na steeti ọrụ agwụla. Ọ bụrụ na SUPP_S1 na SUPP_S2 atụdo na-agbanwe ka agbanwuru ọdụ ụgbọ mmiri, ọkọlọtọ anaghị agbanwe ya.
- AT_FLAG (dị na PD70210/A/AL na PD70200): Ọkọlọtọ a na-arụ ọrụ ala mgbe ụdị 2 PSE na PD na-amata ibe ha site na nhazi ọkwa.
- HD_FLAG (dị na PD70210/A/AL): Ọkọlọtọ a na-arụ ọrụ dị ala mgbe HDBaseT PSE na PD jikọtara ibe ha site na nhazi ọkwa.
- 4P_AT_FLAG (dị na PD70210/A/AL): Ọkọlọtọ a na-arụ ọrụ dị ala mgbe ụdị 4-pair nke PSE na PD jikọtara ibe ha site na nhazi ọkwa.
- 4P_HD_FLAG (dị na PD70210/A/AL): Ọkọlọtọ a na-arụ ọrụ dị ala mgbe 4-pair (ejima) HDBaseT PSE
  na PD na-amata ibe ha site na nhazi ọkwa.
Mmepụta VAUX: VAUX bụ mmepụta ahazi nke ike dị ala maka ojiji dị ka mmalite mmalite maka njikwa ntụgharị DC-DC dịpụrụ adịpụ. Mgbe ịmalitechara, VAUX ga-akwadorịrị site na ikuku inyeaka (bootstrapped) nke ihe ntụgharị DC-DC. Mmepụta VAUX chọrọ ka ejikọta seramiiki capacitor kacha nta 4.7 µF n'etiti VAUX pin na VPNOUT pin ma tinye ya nso na ngwaọrụ ahụ.

Arụ ọrụ na isi iyi DC mpụga

Ngwa PD na-eji PD70210A/AL IC na-enye ọrụ enyemaka enyemaka mpụga (DC mgbidi nkwụnye). N'ozuzu, e nwere ụzọ atọ nke inye ike na isi iyi mpụga:

Ejikọtara isi iyi mpụga ozugbo na ntinye PD (VPP ka VPNIN). Nke a chọrọ mpụta isi mmalite voltage ga-abụ 42V kacha nta na-enweghị ibu yana karịa 36V na oke ibu. A ga-ekewapụ ihe nkwụnye ọkụ na VPP ma ọ bụ VPNIN site na diode OR-ing. Nhazi a anaghị enye mkpa nkwụnye ihe enwere ike iji ya na PD70210, PD70100, na PD70200.
Ejikọtara isi iyi mpụga ozugbo na mmepụta PD (n'etiti VPP na VPNOUT). A ga-ekewapụ isi iyi mpụga na VPP ma ọ bụ VPNOUT site na diode OR-ing. Maka mkpa nkwụnye ihe, naanị PD70210A/AL ka a ga-eji.
Ejikọrọ isi iyi mpụga ozugbo na obere voltage ọkọnọ rails (mmepụta nke DC-DC Ntụgharị). A ga-ekewapụ isi iyi dị na mpụga na mmepụta ike ọkọnọ ngwa site na njikọ gbanwere, diode, ma ọ bụ onye na-achịkwa iche nke isi mmalite dị ugbu a naanị (anaghị eme ka ọ dị ugbu a).

Ọnụ ọgụgụ atọ ndị a na-egosi examples nke PD70210A/AL ahazi ya na ihe nkwụnye mgbidi mpụga. Maka nkọwa ndị ọzọ yana ụkpụrụ akwadoro nke voltage nkewa, lee AN3472: Ime ike inyeaka na PoE. Ọgụgụ 3-1. Ejikọrọ ike inyeaka na ntinye PD70210

Ọgụgụ 3-1. Ejikọrọ ike inyeaka na ntinye PD70210

Ọgụgụ 3-2. Ejikọrọ ike inyeaka na mmepụta PD70210A

Ọgụgụ 3-3. Ejikọrọ ike inyeaka na ntinye ngwa

Usoro ihe omume izugbe

Oke mmemme

PD IC na-agbanwe n'etiti steeti dị iche iche dabere na voltage n'etiti VPP na VPNIN atụdo.

VPPVPNIN= 1.3V ruo 10.1V (na-ebili voltage): A na-ejikọta RDET nchọpụta nchọpụta n'etiti VPP na VPNIN.
VPPVPNIN= 10.1V ruo 12.8V (na-ebili voltage): Akwụpụla RDET resistor na VPNIN.
VPPVPNIN= 11.4V ruo 13.7V (na-ebili voltage): Ejikọtara isi iyi nke ugbu a n'etiti VPP na VPNIN. Ọnụ ụzọ a na-eguzobe eserese nke RCLASS akwadoro ugbu a. Ogo dị ugbu a na-esetịpụ ọkwa klaasị kwa ụkpụrụ IEEE 802.3at na HDBaseT. Ọrụ a bụ nhọrọ maka IEEE 802.3af kwadoro PDs yana iwu maka IEEE 802.3at na HDBaseT PDs kwadoro. Nkewa isi iyi dị ugbu a ka ka ejikọrọ n'oge VPP na-ebili voltage ruo 20.9V.
VPPVPNIN= 20.9V ruo 23.9V (na-ebili voltage): Akwụsịla isi mmalite nhazi ọkwa ugbu a. Enwere ụfọdụ hysteresis n'etiti inye ma gbanyụọ ọnụ ụzọ nke nhazi ọkwa ugbu a.
VPPVPNIN= 4.9V ruo 10.1V (na-ada voltage): Nke a bụ akara voltage nso. IC ga-amata VPPVPNIN voltage na-ada site na nhazi ọkwa ugbu a na-ejikọta ọnụ ụzọ ka ọ bụrụ otu mmemme nke mbinye aka nhazi ọkwa mmemme 2. Ọnụọgụ klaasị iji akara mmemme dị larịị ga-eme ka IC tọọ ọkọlọtọ dị mkpa na steeti ala ha na-arụ ọrụ.
VPPVPNIN= 36V ruo 42V (na-ebili voltage): A na-agbanye ngbanwe dịpụrụ adịpụ site na Gbanyụọ steeti gaa na Inrush Current Limit (Soft Start) mode. N'ime ọnọdụ a, ngbanwe dịpụrụ adịpụ na-amachi DC ugbu a na 240 mA (nke a na-ahụkarị). Usoro sekit oke dị ugbu a n'oge ọnọdụ mmalite dị nro na-enyocha voltage dị iche n'ofe mgbanwe iche (VPNOUTVPNIN) ma na-ejigide inrush ugbu a. N'oge inrush ugbu a oke ime MOSFET na-arụ ọrụ n'ụdị ahịrị.
Mgbe VPNOUTVPNIN dara na 0.7V ma ọ bụ n'okpuru, enwere nkwarụ ịgbanwuo inrush ugbu a, VAUX na-enyere ya aka, a na-agbanye ngbanwe dịpụrụ adịpụ na 2.2A (kachasị) maka nchebe ugbu a yana ọkọlọtọ ndị dị mkpa na-ekwenye ekwenye mgbe igbu oge flog, nke kacha nta 80 ms.
VPPVPNIN= 30.5V ruo 34.5V (na-ada voltage): Gbanyụọ ngbanwe dịpụrụ adịpụ, na-ewepụta oke mgbochi n'etiti VPNIN na VPNOUT. Agbanyere nnukwu ọrụ mwepu capacitor ma na-anọkwa ma ọ bụrụhaala na ọdịiche dị n'etiti voltages VPP na VPNOUT dị n'etiti 30V na 7V. Ọ bụrụ na ejiri isi iyi inyeaka, voltage ma ọ ga-adịrịrị karịa 34.5V, ma ọ bụ a ga-agbakwunye diode dịpụrụ adịpụ n'etiti VPNOUT na nloghachi nke isi iyi inyeaka iji gbochie nkwụsị nke ugbu a.

VPPVPNIN= 2.8V ruo 4.85V (na-ada voltage): A na-ejikọkwa RDET resistor n'ọnụ ụzọ a. Akwụpụrụ RDET mgbe VPPVPNIN voltage dara n'okpuru 1.1V.

Mmachi dị ugbu a

Oke inrush dị ugbu a dị mkpa maka ịmachi nke dị ugbu a n'oge mbido mbụ nke nnukwu capacitors na mmalite sistemụ yana ụkpụrụ PoE chọrọ. Nnukwu mmiri inrush nwere ike ịmepụta nnukwu voltage sags na PI, nke n'aka nke ya nwere ike ime ka ọrụ sistemụ kegidere na ọnụ ụzọ mmemme (dị ka AT_FLAG) iji tọgharịa na steeti mbụ ha. Oke mmalite dị ugbu a ga-ebelata nke ukwuu voltage sag mgbe mmalite-elu.
Ịmalite n'ime nnukwu capacitor a tọhapụrụ n'ụzọ zuru ezu na-ebute nnukwu nkwụsịtụ ike na ngbanwe dịpụrụ adịpụ ruo oge na-adabere n'ogo nke nnukwu ike. Kachasị mma mbụ voltage dobe gafee iche mgba ọkụ nwere ike ịbụ ihe dịka 42V. Ike kachasị ike nke ngbanwe dịpụrụ adịpụ na-ebelata ka nnukwu capacitor na-akwụ ụgwọ, na-emecha na-agbada ruo nkwụsị ike arụ ọrụ nkịtị mgbe mgba ọkụ ahụ gbanyụrụ. Enwere ike gbakọọ oge a chọrọ iji gbanwee site na Soft Start mode gaa na ọnọdụ ọrụ nkịtị site na iji usoro a:
T = ((V 0.7) × C) / I
Ebe:
I = IC dị ugbu a n'oge mmalite dị nro (na-abụkarị 240mA)
C= Mkpokọta ike ntinye aka
V= Mbido VPNOUTVPNIN voltage na mmalite mmalite nro (VMAX = VPP)
Ọnụ ahịa kacha elu nke nnukwu capacitor bụ 240 μF.

Mgbasa Capacitor buru ibu

PD70210/A/AL IC na-enye mwepu nke ngwa nnukwu capacitor mgbe VPPVPNIN dara vol.tage na-agbada n'okpuru mgbanyụ ọkụ nke iche. Njirimara a na-achọpụta na nnukwu ike ngwa ngwa anaghị agbapụta site na ihe mgbochi nchọpụta, nke nwere ike ime ka mbinye aka nchọpụta daa ma gbochie PSE ịmalite PD. Mgbe enyere ya aka, ọrụ mwepu na-enye mwepu nchịkwa kacha nta nke 22.8 mA, nke na-aga site na pin VPP, n'ime ya site na diode ahụ MOSFET dịpụrụ adịpụ, wee pụta site na VPNOUT pin. Ihe nleba anya sekit nke ikuku voltage dị iche n'etiti VPPVPNOUT, ma na-anọgide na-arụ ọrụ mgbe ọdịiche voltage bụ 7V (VPPVPNOUT) 30V. Jiri nhata ndị a gbakọọ oge kachasị maka ịhapụ:
T = ((V 7V) × C)/0.0228
Ebe:
C= Mkpokọta ike ntinye aka
V= Mbido VPPVPNOUT voltage na mgbanahụ iche
Example: Maka mbido capacitor voltage nke 32V, ọ na-ewe 240 ms maka 220µF capacitor iji wepụta na ọkwa 7V.
Ọrụ mwepu nwere oge ma ọ na-arụ ọrụ ma ọ dịkarịa ala 430 ms.

Enyemaka Voltage-VAUX
Microchip PD IC niile nwere voltage mmepụta, VAUX, nke a ga-eji mee ihe dị ka mmalite mmalite maka njikwa DC/DC mpụga. VAUX bụ mmepụta okirikiri ọrụ dị ala, na-enye ugbu a nwa oge ruo mgbe ọkọnọ bootstrap mpụga nwere ike weghara. Maka ịrụ ọrụ kwụsiri ike jikọọ 4.7 F ma ọ bụ capacitor ka ukwuu n'etiti VAUX na ntụtụ ala ike.
A na-ahazi mmepụta VAUX na 10.5V ọnụ ala, ma na-enye ọnụ ọgụgụ kasị elu nke 10 mA maka 10 ms. (5 ms. maka PD70200/PD70100). Na-aga n'ihu ugbu a bụ 4 mA maka PD7021x na 2 mA maka PD7020x/PD7010x. Dịka, a na-ejikọ mmepụta VAUX na ọkọnọ bootstrapped nke volta dị elutage (dị ka mmepụta inyeaka emezigharịrị site na ihe ntụgharị DC/DC dịpụrụ adịpụ). Mmepụta VAUX anaghị emebi ugbu a. Ozugbo bootstrapped voltage karịrị VAUX mmepụta voltage larịị, VAUX mmepụta agaghịkwa na-enye ugbu a na ga-ụzọ doro anya na ọrụ nke DC-DC Ntụgharị. A na-atụ aro ka ị chepụta mmepụta bootstrapped emeziri n'okpuru ọnọdụ ọrụ niile maka obere mmepụta voltagnke 12.5V.
N'oge Soft Start mode ma ọ bụ mgbe agbanyụrụ ikewapụ, mmepụta VAUX nwere nkwarụ site na ịdaba VPP.

Mmepụta PGOOD
PD70210, PD70100, na PD70200 ICs na-enye mmepụta drain na-emeghe na-egosi ike dị mma. Mmepụta a na-ekwupụta na ọ na-arụ ọrụ dị ala mgbe voltage n'etiti VPP na VPNOUT ruru ihe dịka 40V. N'elu nkwuputa, mmepụta PGOOD na-agbanye na ala nwere ikike sink ugbu a nke 5 mA. Mgbe VPPVPNIN voltage dara n'okpuru ebe mgbanyụ ọkụ dịpụrụ adịpụ, mmepụta PGOOD na-eweghachi azụ na steeti impedance dị elu.
Enwere ike iji mmepụta a chọpụta mgbe PI voltage nọ na oke ọrụ.
PD70210A/AL enweghị mmepụta PGOOD. Ọ bụrụ na achọrọ ọrụ dị otú ahụ, enwere ike iji mmepụta VAUX dị ka nhọrọ. Ọ bụrụ na ị kee VAUX n'ọnụ ụzọ nke obere mgbama N-channel FET, yana isi iyi ya VPNOUT, enwere ike iji igbapu nke FET a dị ka nnọchi PGOOD.

Ntinye WA_EN (PD70210A/AL naanị)

A na-eji ntụtụ ntinye a maka njikọ ntinye ike mpụga n'etiti VPP na VPNOUT. Hụ foto 3-1. Ejikọrọ ihe nkesa resistor R1 na R2 n'etiti VPP na VPNOUT. Ndị mmegide ndị a na-edobe ọnụ ụzọ ntụgharị P-channel FET. Ekwesịrị ijikọ ọnụ ụzọ P-ch FET mgbaama dị ala 100V na R1. Ejikọrọ mmiri mmiri P-ch na ntinye WA_EN site na R3 resistor. Ejikọrọ resistor R4 n'etiti WA_EN na VPNIN. R3 na R4 na-edozi ọkwa nke achọpụtara ntinye WA dị irè. Ntinye WA_EN chọrọ ọkwa mgbagha. Mgbe ntinye WA_EN dị elu, a na-agbanyụ ọkụ iche iche PD70210A/AL wee kwado ọkọlọtọ niile - gbanwee ka ọ bụrụ ọkwa dị ala. A kọwapụtara ntuziaka nhọrọ resistor na ndetu ngwa AN3472: ike inyeaka maka PDs.

Ntinye SUPP_S1 na SUPP_S2 (PD70210A/AL naanị)

Ntinye SUPP_S1 na SUPP_S2 na-enyere PD aka ịmata isi iyi nke ike ma ọ bụ data, mapụtara ụzọ abụọ, ma ọ bụ ha abụọ. Nke ọ bụla n'ime ihe ntinye ndị a chọrọ ka ejikọta ya na ụzọ abụọ dị mkpa, ma ọ bụrụ na ngwaọrụ PD s.amples ọkwa dị elu nke 35V na karịa na ntinye a ọ na-agụta ụzọ abụọ a dị ka ụzọ na-arụ ọrụ. A na-eji ntinye ndị a mgbe ị na-arụ ọrụ PSE pụrụ iche nke nwere nchọpụta na nhazi ọkwa na ụzọ abụọ naanị ma nwee ike na ụzọ anọ. Ntinye SUPP_S1 na SUPP_S2 ga-enwerịrị resistor 10k ejikọrọ na nke ọ bụla n'ime ha. Mgbe ejighị ọrụ ndị a, SUPP_S1 na SUPP_S2 nwere ike ịpụpụ na sekit mpụga wee jikọọ na ntinye VPNIN ma ọ bụ aka ekpe na-ese n'elu mmiri.

Ụdị Ọkọlọtọ PSE

PD702x0 na PD701x0 IC na-enye mpụta mpụta mmiri mepere emepe na-egosi ụdị PSE site na ụkpụrụ nhazi ọkwa ya achọpụtara. Nsonaazụ ahụ dị na ọnọdụ mgbochi dị elu ruo mgbe mgba ọkụ iche na-esi na Soft Start Current Limit mode gaa na ọnọdụ ọrụ nkịtị. A ga-ekwupụtakwa na ọ dị ala, dabere n'ụkpụrụ nhazi nke achọpụtara. N'elu nkwuputa, mmepụta ọkọlọtọ na-agbanye na ala nwere ikike sink dị ugbu a nke 5 mA. Ngosipụta mmepụta ọkọlọtọ na-alaghachi azụ na steeti impedance dị elu mgbe VPPVPNIN voltage dara n'okpuru mgbanyụ ọkụ iche. Ọkọlọtọ na-eme ka onye nrụpụta PD rụọ ọrụ na ọkọlọtọ nke dabara na ngwa ahụ. Maka ike ọ bụla achọpụtara, a na-ekwupụtakwa ọkọlọtọ ike dị ala (IE AT_FLAG na-ekwupụta na ọkwa na maka ọkwa ike niile dị n'elu AT). A na-akọwapụta ọkwa ike dị na tebụl 2. Dị ka akọwapụtara na tebụl, PD na-agụta ihe omume mkpịsị aka nhazi na site na ọnụ ọgụgụ ya ghọtara ụdị PSE. SUPP_S1 na SUPP_S2 na-enyere PD aka ịmata PSE pụrụ iche nke nwere nhazi na ụzọ abụọ naanị mana nwee ike na ụzọ anọ niile. Ya mere, ọ bụrụ na a ghọtara mkpịsị aka abụọ, mgbe ahụ, ngwaọrụ PD samples SUPP_S1 na SUPP_S2 ntinye ma ọ bụrụ na ha abụọ dị elu, mgbe ahụ, a na-enye ike ahụ na ụzọ abụọ ahụ ma akwadoro ọkọlọtọ 4P_AT.

Isiokwu 5-1. Ọkwa ike PD dị na ngosi ọkọlọtọ

Ọnụọgụ mkpịsị aka klaasị	SUPP_S1	SUPP_S2	PGOOD_ Ọkọlọtọ	AT_ Ọkọlọtọ	HD_ Ọkọlọtọ	4P_AT_ Ọkọlọtọ	4P_HD_ Ọkọlọtọ	Ọkwa Ike dị
1	X	X	0 V	Ndewo Z	Ndewo Z	Ndewo Z	Ndewo Z	802.3 AF larịị / 802.3 AT ụdị 1 larịị
2	H	L	0 V	0 V	Ndewo Z	Ndewo Z	Ndewo Z	802.3 AT ụdị 2 larịị
2	L	H	0 V	0 V	Ndewo Z	Ndewo Z	Ndewo Z	802.3 AT ụdị 2 larịị
2	H	H	0 V	0 V	Ndewo Z	0 V	Ndewo Z	Abụọ 802.3 AT ụdị 2 larịị
3	L	H	0 V	0 V	0 V	Ndewo Z	Ndewo Z	HDBaseT Ụdị 3
3	H	L	0 V	0 V	0 V	Ndewo Z	Ndewo Z	HDBaseT Ụdị 3
3	H	H	0 V	0 V	0 V	0 V	Ndewo Z	HDBaseT Ụdị 3
4	X	X	0 V	0 V	0 V	0 V	Ndewo Z	Abụọ 802.3 AT ụdị 2 larịị
5	X	X	Edobere maka ọdịnihu					NA
6	X	X	0 V	0 V	0 V	0 V	0 V	Ejima HDBaseT Ụdị 3

Nchekwa okpomọkụ

PD702x0 na PD701x0 IC na-enye nchebe okpomọkụ. Ihe mmetụta ọkụ agbakwunyere na-enyocha okpomọkụ dị n'ime nke ngbanwe dịpụrụ adịpụ yana nkewa isi iyi ugbu a. Ọ bụrụ na agafeela oke okpomọkụ nke ihe mmetụta ọ bụla, sekit nke ihe mmetụta ahụ ga-ewepụ.
Iji hụ na arụ ọrụ na-enweghị nsogbu, ọ dị mkpa ijide n'aka na etinyere pad ekpughere PD IC na mpaghara ọla kọpa na PCB nke na-enye mmiri ọkụ zuru oke.

Ntuziaka nhazi PCB

Ụkpụrụ IEEE 802.3at na HDBaseT na-akọwapụta ụfọdụ ihe achọrọ ikewapụ nke akụrụngwa PoE niile ga-emezurịrị. A kọwapụtara iche na 1500 VRMS opekempe n'etiti data na-abata na ahịrị ike, yana akara ọ bụla, ike, ma ọ bụ njikọ chassis nke onye ọrụ njedebe nwere ike bata na kọntaktị na mpụga ngwa ahụ. Na ụdị FR4 PCB, ihe a chọrọ na-eju afọ site na ịmepụta ihe mgbochi nke opekempe 0.080 inch (2 mm) n'etiti akara ndị dị n'akụkụ chọrọ ikewapụ 1500 VRMS.
Nye PCB imewe nlebara anya pụrụ iche iji nye ikpo ọkụ zuru oke nke mpempe akwụkwọ ekpughere (VPNOUT). Ihe ngwugwu Microchip PD IC niile na-eji pad ekpughere ekpughere iji mee ka ngwugwu ahụ dị jụụ, yabụ na-achọ imewe PCB iji tinye mpaghara ọla kọpa zuru oke nke etinyere na pad ekpughere. Maka bọọdụ multilayer, enwere ike iji vias na-eduzi na oyi akwa ụgbọ elu dị n'akụkụ. Buru n'uche na mpe mpe akwa ekpughere ejikọta na VPNIN na eletriki ma ọ ga-abụrịrị ikewapụ ya na VPNOUT.
Mgbe ị na-eji vias iji nye conductivity okpomọkụ n'etiti oyi akwa ụgbọ elu na mpempe akwụkwọ ekpughere, gbọmgbọm ga-adị mils 12 na dayameta na (ebe enwere ike) tinye ya na usoro grid. A ga-akụnye oghere gbọmgbọm ma ọ bụ ụlọikwuu maka mwepụta tapawa kwesịrị ekwesị. Mgbe a na-eji oghere ụlọikwuu, ebe nsonye ihe nkpuchi solder ga-abụrịrị 4 mils (0.1 mm) kariri site na gbọmgbọm.
Maka otu mbadamba oyi akwa ma ọ bụ nke abụọ, jiri nnukwu ọla kọpa na-ejuputa na kọntaktị na pad ahụ ekpughere. Ọkpụkpụ ọla kọpa nke 2 oz na-eme ka arụmọrụ ọkụ dịkwuo mma. Ọ bụrụ na ị na-eji akara ọla kọpa nke na-erughị 2 oz, a na-atụ aro ka ịbawanye ọkpụrụkpụ nchọta n'ozuzu ya site n'ịgbakwụnye ihe na-ere ahịa n'akụkụ ebe kwesịrị ekwesị.
PCB imewe ga-enye obosara, arọ ọla akara maka elu ugbu a ike ahịrị. 4-pair, PD ike gbatịrị agbatị nwere ike ịnwe oke ọnya mmiri nke 2A maka ọnụ VPP na VPN. Usoro na-ebu ugbu a maka VPP, VPNIN, na VPNOUT ga-enwerịrị nha iji nye ịrị elu okpomọkụ kachasị dị ala na nke kachasị ugbu a. Maka example, opekempe nke 15 mils obosara 2 oz ọla kọpa na-anabata ruo 1.6A ugbu a yana oke okpomọkụ 10 Celsius. Ọ bụrụ na ejiri akara ọla kọpa nke na-erughị 2 oz, welie opekempe obosara iji nabata kacha ugbu a yana oke okpomọkụ dị ala.
Mgbama PoE nwere voltagihe ruru 57 VDC. Akụkụ na-arụ ọrụ voltage ga-atụle, na components sized ya. N'elu elu ugwu resistors bụ ezigbo example: 0402 resistors nwere ahụkarị kacha arụ ọrụ voltage nkọwa nke 50V, ebe 0805 resistors na-emekarị kpọmkwem na 150V.
Mgbe ejiri ya na PD702x0 na PD701x0 ICs, ihe mgbochi nchọpụta RDET na-ejikọ naanị na PoE vol.tages ruo 12.8V, ma na-apụ apụ ma ọ bụghị ya, ya mere ọ nwere ike ịbụ obere voltage ụdị (0402).
Mara: Maka ntụzịaka okirikiri nhọrọ ukwuu, lee Ngwa Microchip Note AN3533.

Atụmatụ EMI

Iji wedata ikuku a na-eduzi na nke na-egbuke egbuke, na iji "gbajie" loops ala enwere ike, a na-atụ aro ka idowe (ma ọ bụ hapụ ndokwa maka) ihe nzacha EMI. A na-edobe ihe nzacha a n'etiti àkwà mmiri ntinye ntinye na onye na-ahụ maka PoE PD yana gụnye nkpakọ ọnọdụ nkịtị na 2kV nkịtị mode capacitors, dị ka egosiri na foto a. Otu exampEnyere nleba anya nke ọma nke nzacha dị otú ahụ na PD7211EVB72FW-12 Ntuziaka onye ọrụ Board. Na example, a na-eji ihe ndị a na nzacha:

Ụdị nkịtị kpagbuo Pulse pan P0351
Ndị na-ahụ maka ọnọdụ nkịtị Novice pan 1812B682J202NXT

Ọgụgụ 8-1. Ọganihu ike na Sistemụ dabere na PD70211

Akwụkwọ ntụaka

Akwụkwọ Microchip niile dị n'ịntanetị na www.microchip.com/poe.

Ụkpụrụ IEEE 802.3at-2015, Nkebi 33 (Ike DTE site na MDI)
Nkọwapụta HDBaseT
PD70210/PD70210A/PD70210AL mpempe akwụkwọ
PD70211 mpempe akwụkwọ
PD70100/PD70200 mpempe akwụkwọ
PD70101/PD70201 mpempe akwụkwọ
PD70224 mpempe akwụkwọ
AN3410 chepụta maka PD System Surge Immunity PD701xx_PD702xx
AN3472 Na-emejuputa ike inyeaka na PoE
AN3471 Ịmepụta Ụdị 1/2 802.3 ma ọ bụ HDBaseT Ụdị 3 PD N'ihu Ọgwụgwụ Iji PD702x1 na PD701x1 ICs

AN3533 PD70210(A), PD70211 Ntuziaka nhazi usoro

Akụkọ ngbanwe

Ndozigharị	Ụbọchị	Nkọwa
B	04/2022	Nke a bụ nchịkọta mgbanwe emere na ntughari a: • Tebụl 1 emelitere. • emelitere 7. Ntuziaka nhazi PCB: E wepụrụ aha 0603 resistors. Etinyere ndetu. • Agbakwunyere 8. EMI Atụmatụ. • emelitere 9. Akwụkwọ ntụaka.
A	06/2020	Nke a bụ mbipụta mbụ nke akwụkwọ a. Ịmepụta ụdị 1/2 802.3 ma ọ bụ HDBaseT Ụdị 3 kwadoro n'ihu njedebe iji PD702x0 na PD701x0 ICs ka akọwara na mbụ n'ime akwụkwọ ndị a: • AN209: Ịmepụta Ụdị 1/2 802.3 ma ọ bụ HDBT Ụdị 3 PD Iji PD70210/ PD70210A ICs • AN193: Ịmepụta Ụdị 1/2 IEEE 802.3at/af Kwadoro Ngwaọrụ n'ihu Iji PD70100/PD70200

Microchip Websaịtị

Microchip na-enye nkwado ntanetị site na anyị websaịtị na www.microchip.com/. Nke a weba na-eji saịtị eme ihe files na ozi dị mfe maka ndị ahịa. Ụfọdụ ọdịnaya dị gụnyere:

Nkwado ngwaahịa – Ibé akwụkwọ data na errata, ndetu ngwa na sampmmemme, akụrụngwa imewe, ntuziaka onye ọrụ na akwụkwọ nkwado ngwaike, ewepụtara sọftụwia kacha ọhụrụ yana sọftụwia echekwara
Nkwado nka na ụzụ izugbe - Ajuju a na-ajụkarị (FAQ), arịrịọ nkwado teknụzụ, otu mkparịta ụka n'ịntanetị, ndepụta ndị otu mmemme mmebe Microchip

Azụmahịa nke Microchip – ntuziaka onye na-ahọpụta ngwaahịa na ịtụ iwu, mbipụta akwụkwọ akụkọ Microchip kacha ọhụrụ, ndepụta nke nzukọ ọmụmụ na mmemme, ndepụta nke ụlọ ahịa Microchip, ndị nkesa na ndị nnọchi anya ụlọ ọrụ mmepụta ihe.

Ọrụ ngosi mgbanwe ngwaahịa

Ọrụ ngosi mgbanwe ngwaahịa Microchip na-enyere ndị ahịa aka ugbu a na ngwaahịa Microchip. Ndị debanyere aha ga-enweta ọkwa email mgbe ọ bụla enwere mgbanwe, mmelite, nlegharị anya ma ọ bụ errata metụtara ezinụlọ ngwaahịa akọwapụtara ma ọ bụ ngwa mmepe nke mmasị.
Iji debanye aha, gaa na www.microchip.com/pcn ma soro ntuziaka ndebanye aha.

Nkwado ndị ahịa

Ndị na-eji ngwaahịa Microchip nwere ike ịnweta enyemaka site na ọtụtụ ọwa:

Onye nkesa ma ọ bụ onye nnọchi anya
Ụlọ ọrụ ire ahịa mpaghara
Injinia Ngwọta agbakwunyere (ESE)
Nkwado ndị teknuzu

Ndị ahịa kwesịrị ịkpọtụrụ onye nkesa ha, onye nnọchi anya ma ọ bụ ESE maka nkwado. Ọfịs ahịa mpaghara dịkwa maka inyere ndị ahịa aka. Agụnyere ndepụta ụlọ ọrụ ahịa na ebe n'ime akwụkwọ a. Nkwado nka na ụzụ dị site na websaịtị na: www.microchip.com/support

Njirimara Nchekwa Koodu Ngwaọrụ Microchip

Rịba ama nkọwa ndị a nke njirimara nchedo koodu na ngwaọrụ Microchip:

Ngwaahịa Microchip na-emezu nkọwapụta dị na mpempe data Microchip ha.

Microchip kwenyere na ezinụlọ nke ngwaahịa ya bụ otu n'ime ezinụlọ ndị kachasị nchebe n'ahịa taa, mgbe ejiri ya mee ihe n'ụzọ a chọrọ na n'okpuru ọnọdụ nkịtị.
Enwere ụzọ akwụwaghị aka ọtọ na ikekwe iwu na-akwadoghị nke ejiri mebie njirimara nchedo koodu. Ụzọ ndị a niile, dịka anyị maara, chọrọ iji ngwaahịa Microchip n'ụzọ na-abụghị nkọwa ọrụ dị na mpempe data Microchip. O yikarịrị ka onye na-eme nke a na-etinye aka na izu ohi nke ọgụgụ isi.
Microchip dị njikere iso onye ahịa na-eche banyere iguzosi ike n'ezi ihe nke koodu ha rụọ ọrụ.

Ma Microchip ma ọ bụ ndị nrụpụta semiconductor ọ bụla nwere ike ikwe nkwa nchekwa nke koodu ha. Nchedo koodu apụtaghị na anyị na-ekwe nkwa ngwaahịa ahụ dị ka "enweghị ike imebi."

Nchekwa koodu na-agbanwe mgbe niile. Anyị na Microchip na-agba mbọ na-aga n'ihu na-emeziwanye njirimara nchedo koodu nke ngwaahịa anyị. Mgbalị imebi njirimara nchekwa koodu Microchip nwere ike bụrụ imebi iwu nwebiisinka nke Millennium Digital. Ọ bụrụ na omume ndị a na-enye ohere ịnweta ngwanrọ na-akwadoghị ma ọ bụ ọrụ nwebiisinka ndị ọzọ, ị nwere ike ịnwe ikike ịgba akwụkwọ maka enyemaka n'okpuru Iwu ahụ.

Akwụkwọ Ozi Iwu

Ozi dị n'akwụkwọ a gbasara ngwa ngwaọrụ na ihe ndị ọzọ ka enyere naanị maka ịdị mma gị yana mmelite nwere ike dochie ya. Ọ bụ ọrụ gị ịhụ na ngwa gị dabara na nkọwapụta gị. MICROCHIP emeghị nnochite anya ma ọ bụ akwụkwọ ikike n'ụdị ọ bụla ma ọ bụ kọwapụtara ma ọ bụ akọwapụta ya, edere ma ọ bụ n'ọnụ, iwu ma ọ bụ ọzọ, metụtara ozi ahụ, gụnyere ma ọnweghị oke n'ọnọdụ ya, MMADỤ MMADỤ, Nzube. Microchip na-ewepụ ụgwọ niile sitere na ozi a na ojiji ya. Iji ngwaọrụ Microchip na nkwado ndụ yana/ma ọ bụ ngwa nchekwa bụ kpamkpam n'ihe ize ndụ nke onye zụrụ ya, onye na-azụ ya kwenyere ịgbachitere, kwụọ ụgwọ ma jide Microchip na-adịghị emerụ ahụ site na mmebi ọ bụla, nkwuputa, uwe, ma ọ bụ mmefu sitere na ụdị ojiji ahụ. Ọnweghị ikike ebugara, n'ezoghị ọnụ ma ọ bụ n'ụzọ ọzọ, n'okpuru ikike ikike ọgụgụ isi Microchip ọ gwụla ma ekwuputara ya.

Akara ụghalaahia

Aha Microchip na akara ngosi, akara Microchip, Adaptec, AnyRate, AVR, AVR logo, AVR Freaks, Bes Time, Bit Cloud, Chip KIT, mgbawa KIT akara, Ebe nchekwa Crypto, Crypto RF, ds PIC, Flash Flex, Flex PWR, HELDO, IGLOO, Jukebox, Kilo, MDX, Kle, St. Media LB, mega AVR, Micro semi, Micro semi logo, ọtụtụ, akara ngosi, MPLAB, Opto Lyzer, PackerTime, PIC, pico Power, PICSTART, PIC32 logo, Polar Fire, Prochip Designer, QTouch, SAM-BA, Sen Genuity, SpyNIC, SST, SST Logo, SuperFlash, TrackomS Time, Server Time, Timemetric, Timerce Time tinyAVR, UNI/O, Vectron, na XMEGA bụ ụghalaahịa edenyere n'akwụkwọ ikikere nke Microchip Technology Incorporated na USA na obodo ndị ọzọ.
APT, ClockWorks, The agbakwunyere Control Solutions Company, Ether Synch, Flash Tec, Hyper Speed Control, Hyper Light Load, Bintelli MOS, Libero, moto Bench, touch, Powermite 3, Precision Edge, ProASIC, ProASIC Plus, Pro ASIC Plus logo, Quiet-Wire, SmartFusion, mmekọrịta ụwa, Timex, Time, Time Pro, Time, Time, Time, Clockesic, Time, Time, Time Pro, Time, Time, Time, Time Pro, Time, Time, Time, Time Pro, Time, Time, Time Pro, Time, Time, Time, Time, Time, Vite, Time, Time, Vite, Time, Time, Vite, Time, Time Pro, Time, Time, Time, Time, Time, Vite, Time, Vite, Time, Time Pro, Time, Time, Time, Vite, Time, Time, Vite, Time, Time, Vite, Time, TimeV, Time Pro, Time, Time, Time, Vite, Time, Time, Vite, Time, Time, Time, Vite, Time, Vite, Time, Time, Vite, Time, Vite, Time, Time, Time, Vite, Time, Vite Time WinPath, na ZL bụ ụghalaahịa edenyere n'akwụkwọ ikikere nke Microchip Technology Incorporated na USA
Nkwụsị igodo dị n'akụkụ, AKS, Analog-for-the-Digital Age, Capacitor ọ bụla, Ọ bụla N'ime, Ọ bụla Out, Blue Sky, Body Com, Code Guard, Crypto Authentication, Crypto Automotive, Crypto Companion, Crypto Controller, spiced, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, In-SPCGREEN, Serial Programme Cnet, Inter-Chip Njikọta, Jitter Blocker, Kleber Net, Kleber Net logo, mem Brain, Mindi, Mi Wi, MPASM, MPF, MPLAB akara ngosi, MPLIB, MPLINK, Multi TRAK, Net Detach, Code Generation Omniscient, PICDEM, PICDEM.net, PI Chit, Smart, PI Tail, PI Tail, Sitrix, Puil, Puil, Puil, Puil, Puil, Puil, Puil, PI Ihe mgbochi, SAM-ICE, Serial Quad I/O, SMART-IS, SQI, Super Switcher, Super Switcher II, ngụkọta ntachi obi, TSHARC, USB Check, Vary Sense, View Span, Wiper Lock, Ikuku DNA, na ZENA bụ ụghalaahịa nke Microchip Technology Incorporated na USA na obodo ndị ọzọ.
SQTP bụ akara ọrụ Microchip Technology Incorporated na USA
Akara Adaptec, Frequency on Demand, Silicon Storage Technology, na Symmcom bụ ụghalaahịa edenyere n'akwụkwọ ikikere nke Microchip Technology Inc. na obodo ndị ọzọ.
GestIC bụ ụghalaahịa edenyere n'akwụkwọ ikikere nke Microchip Technology Germany II GmbH & Co.KG, onye enyemaka Microchip Technology Inc., na mba ndị ọzọ.
ụghalaahịa ndị ọzọ niile a kpọtụrụ aha n'ime ebe a bụ akụ nke ụlọ ọrụ ha.
© 2022, Microchip Technology Incorporated, Bipụtara na USA, Edokwaara Ikike Niile.
ISBN: 978-1-6683-0205-7

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AN3468 HDBaseT Ụdị 3 Ngwaọrụ kwadoro n'ihu-ọgwụgwụ, AN3468, HDBaseT Ụdị 3 Ngwaọrụ kwadoro n'ihu-ngwụsị, Ngwaọrụ kwadoro, n'ihu-ngwụcha

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