Ibhodi Lokuhlola I-Allegro MicroSystems A81411

DESCRIPTION
Ibhodi Lokuhlola I-A81411 yakhelwe ukusiza abaklami besistimu ukuthi bahlole ukusebenza nokusebenza kwe-IC yokuphatha amandla. Ibhodi Lokuhlola Le-A81411 lihlinzeka ngoxhumo ku-Buck-Boost Pre-Regulator, 5× Linear Regulators kanye nezokuxhumana ze-SPI.

IZICI

• Ibanga lokufaka elibanzi: 3.2 kuya ku-36 V VIN esebenzayo
• 2.2 MHz i-synchronous buck-boost preregulator (VREG: 5.35 V) nesinxephezelo sangaphakathi
• Izilawuli zomugqa ezinhlanu zangaphakathi ezinokuvikelwa kwe-fold-back short-circuit
  • I-VUC: 3.3 V noma 5 V (ekhethwa ngephini) isilawuli se-microcontroller
  • I-VLDOA: 5 V (noma inketho yefekthri engu-3.3 V) isilawuli senhloso evamile ephansi (i-LDO)
  • I-VLDOB: 5 V noma 3.3 V (ikhethwa ngephini) isilawuli esihlala sivuliwe se-LDO
  • I-VLDOP1 ne-VLDOP2: Okubili okuhleliwe (5 V noma 3.3 V) futhi kunikwe amandla ngezilawuli ze-serial-port-interface (SPI) ze-LDO ezinokuvikela okufushane ukuya kwebhethri kwezinzwa ezikude
• Amabili aphezulutagvumela okokufaka (ENBAT kanye ne-ENCAN)

Ithebula 1: A81411 Ukucushwa Kwebhodi Lokuhlola

Ukucushwa Igama	Inombolo Yengxenye	I-VLDOA Output Voltage	Iphakheji
A81411	I-A81411KEVGTR	5 V	40-pin QFN enephedi eshisayo
	I-A81411KEVGTR-1	3.3 V

Ithebula 2: Imininingwane Ejwayelekile

Ukucaciswa	Okuncane	Nom	Ubukhulu	Amayunithi
Okokufaka I-Voltage	3.2	-	36	V
VIN VLDOB Qala Umqtage	5.7	6	6.3	V
VIN UVLO Qala Umqtage	5.72	5.88	6.12	V
I-VIN VLDOB Stop Voltage	4	-	5	V
VIN UVLO Stop Voltage	2.65	2.9	3.15	V
I-VIN UVLO Hysteresis	-	2.5	-	V
I-ENBAT/ENCAN Upper Threshold	2.7	3.2	3.5	V
I-ENBAT/ENCAN Lower Threshold	2.2	2.6	2.9	V
I-ENBAT/ENCAN Hysteresis	-	500	-	mV
EN Upper Thresholds	-	-	2	V
EN Lower Thresholds	0.8	-	-	V

UKUSEBENZISA IBHODLU LOKUHLOLA

Lesi sigaba sinikeza i-overview kokuxhumana nezinketho zokumisa zeBhodi Lokuhlola I-A81411. Iqembu ngalinye lokuxhumana eligqanyiswe kuMfanekiso 2 linesigaba semininingwane ngezansi. Umfanekiso 2 ubonisa izikhundla ezizenzakalelayo ze-jumper. Idatha ye-A81411 iqukethe imininingwane enemininingwane ngokusetshenziswa kanye nokusebenza kwephinikhodi ngayinye. Xhumana nemininingwane yedatha ye-A81411 ukuze uthole imininingwane eyengeziwe kunaleyo equkethwe kulo mhlahlandlela womsebenzisi.

Okokufaka Amandla
Xhuma ugesi kutheminali eluhlaza okotshani usebenzisa izintambo ezimbili bese uqinisa izikulufu ukuze ziqineamp izintambo endaweni. Imikhondo yesiqeshana ingasetshenziswa ezindaweni zokuhlola ezibekwe nhlangothi zombili zebhulokhi yetheminali eluhlaza. Bheka i-polarity ebhodini, xhuma i-VIN kutheminali ephozithivu yokuhlinzeka nge-VBAT kanye ne-GND kutheminali yokunikezela okunegethivu.

Imiphumela Yesilawuli Somugqa
Zonke izilawuli zomugqa ezinhlanu zinephoyinti lokuhlola elixhunywe kuphinikhodi yazo yokuphumayo kanye nesihloko samaphini amabili wezimelaphi zawo zokulayisha ezihlotshaniswayo. Ngenkathi kukala umthamo wokukhiphayotage, xhuma i-positive probe ye-multimeter endaweni yokuhlola efanele kanye netheminali engalungile ye-multimeter ekuxhumekeni kwe-GND eseduze. Ukuze usebenzise izinto ezimelana nomthwalo ezifakwe ebhodini, faka i-jumper yamaphini amabili kunhlokweni yamaphini amabili afanelekile we-resistor odingekayo wokulayisha okukhiphayo. Ukuze ulinganise amandla okukhiphayo, susa i-pin jumper emibili bese ufaka esikhundleni sayo ama-probe amabili e-ammeter.

Okukhipha Umqtage Ukucushwa
I-A81411 inamandla okumisa ukuphuma kwe-LDO emihlanu phakathi kokuphumayo okungu-5 V noma okungu-3.3 V. I-VUC kanye ne-VLDOB regulator out-put voltagamaphinikhodi angakhethwa phakathi kuka-3.3V noma 5V. Lezi zilawuli ezimbili ngayinye ine-jumper enezikhonkwane ezintathu ebhalwe ukuthi VUCSEL kanye ne-VLDOB-SEL ukuze icushwe kalula. Kunoma yisiphi isilawuli, beka i-jumper yamaphini amabili phakathi kwephinikhodi emaphakathi nohlangothi olumakwe ngo-3.3 V noma u-5 V ukuze ukhethe ivolumu ephumayo.tage kulabo balawuli.

I-VLDOA regulator output voltage inketho yefekthri. Izinombolo ezimbili ezihlukene ze-A81411 ziyatholakala ngenketho engu-3.3 V noma engu-5 V.
Ama-VLDOP1 amabili kanye ne-VLDOP2 akhetheka ku-5 V noma i-3.3 V futhi angavulwa ngendlela yezokuxhumana ze-SPI.
Isilawuli se-VLDOB siyisilawuli esisebenza njalo. Iqala umthethonqubo lapho i-VIN voltage ingaphezu kwe-undervoltage-threshold, noma ngabe awekho amaphinikhodi atholakalayo aphezulu.

Ukuxhumana kwe-SPI
I-A81411 ine-General User Interface (GUI) yokuxhumana okulula ngembobo ye-SPI ukuya ku-PC isebenzisa ikhebula le-FTDI, elilayishekayo lisuka ku-Allegro. webindawo. Bheka imininingwane yemininingwane yokuxhumana ye-MCU SPI.

Nika amandla
Ibhodi Lokuhlola Le-A81411 linganikwa amandla ngokudonsa iphinikhodi ye-EN phezulu, iphinikhodi ye-ENCAN phezulu, noma iphinikhodi ye-ENBAT phezulu. Ukuze kube lula, izikhonkwane ze-ENCAN kanye ne-ENBAT ngayinye ineswishi ukuze idonsele noma yiliphi kulawa maphini phezulu futhi linike amandla ingxenye. Iphinikhodi ye-EN inephoyinti lokuhlola lapho isignali yangaphandle efana naleyo evela ku-microcontroller ingasetshenziswa ukunika amandla i-A81411. Isignali yangaphandle efakwe kuphinikhodi ye-EN kufanele ibe ngaphezu kuka-2 V futhi ingabi ngaphezu kuka-5 V.

Imiphumela Yokuxilonga
I-A81411 ihlanganisa uchungechunge lwemiphumela ukuze yazise i-microprocessor uma kwenzeka noma yimaphi amaphutha. Ngayinye yalezi phini inendawo yokuhlola exhunywe kuzo ukuze ifinyeleleke kalula. Lezo zimpawu zifaka i-Watchdog Fault (WD_Fn), amandla okusetha kabusha (NPOR), ifulegi lephutha (FFn) kanye nokunika amandla umshayeli wesango (POE).

Ukushintsha Imvamisa
Imvamisa yokushintsha yesilawuli sangaphambili imiswe ku-2.2 MHz ejwayelekile, futhi yehla yaya ku-1.1 MHz uma i-VIN vol.tage yanda ngaphezu kwe-19 V. Ingagadwa ngokuxhuma i-oscilloscope probe endaweni yokuhlola ye-LX1 kanye ne-GND.

Inqubo Yokuqalisa
Ukuze uqale ukusebenzisa Ibhodi Lokuhlola Le-A81411, landela imiyalelo engezansi futhi ubhekisele kumdwebo oseMfanekisweni 2 noma izincazelo zephoyinti lokuhlola ezichazwe kuthebula Lencazelo Yephuzu Lokuhlola le-A81411.

1. Qinisekisa ukuthi i-VUCSEL ne-VLDOB jumper zisesimweni esifanele sevolumu edingekayotage.
2. Faka ama-jumpers adingekayo ukuze kuxhunywe izimelaphi ezilawulwayo zomthwalo ophumayo Kubhodi Lokuhlola Le-A81411.
3. Faka ivolumu yokufakatage yonkana amatheminali e-VBAT ngenhla kwe-UVLO (5.88 V ejwayelekile) enobuncane bokunikezwa kwamandla obungu-1.5 A.
4. Ngokungeziwe ku-VLDOB, esivele iyasebenza, hlinzeka ngesignali yokuvumela phakathi kwe-EN, ENBAT, noma i-ENCAN ukuze uvule i-VREG namanye ama-LDO.

Ithebula 3: A81411 Izincazelo Zephuzu Lokuhlola

Isivivinyo Khomba	Incazelo
I-VBAT	Itheminali evumayo yokufaka ivolumutagxhuma i-e noma xhuma izintambo ku-VBAT screw down test block. V+ kwesokudla.
GND	Itheminali engalungile yokufaka ivolumutagxhuma i-e noma xhuma izintambo ku-VBAT screw down test block. GND kwesokunxele.
I-ENCAN	Izinga eliphezulu livumela ukuvuka nge-CAN.
ENBAT	I-ignition inika amandla okokufaka okuvela kukhiye/iswishi nge-resistor yochungechunge.
I-Vin_S	I-Vin_Sense ixhumeke eduze ne-DUT futhi isetshenziselwa ukuzwa ivolumu yangempelatage evela kuphinikhodi yokufaka
I-LX1	Ukushintsha i-node yesilawuli sangaphambili (2.2 MHz).
I-VREG	Umphumela voltage ye-pre-regulator.
I-VLDOP1	Umphumela voltage yesilawuli se-VLDOP1 (inikwe amandla futhi yahlelwa nge-SPI).
I-VLDOP2	Umphumela voltage yesilawuli se-VLDOP2 (inikwe amandla futhi yahlelwa nge-SPI).
I-VUC	Umphumela voltage yesilawuli se-VUC (Khetha i-3.3 V noma i-5 V usebenzisa i-VUCSEL jumper).
I-VLDOA	Umphumela voltagi-e yesilawuli se-VLDOA (5 V noma 3.3 V ukulungiselelwa kwefekthri).
I-VLDOB	Umphumela voltagi-e yesilawuli se-VLDOB, IVULIWE njalo (Khetha i-3.3 V noma i-5 V usebenzisa i-VLDOBSEL jumper).
I-NERROR	Okokufaka okuphansi okusebenzayo okusetshenziselwa ukushayela i-POE phansi.
AMUXO	Okukhiphayo kwe-Analog Multiplexer.
I-NPOR	Setha kabusha okukhiphayo ku-MCU
EN	Okokufaka ukuze unike amandla i-A81411 (5 V max).
WD_IN	Okokufaka kwe-Watchdog kusuka ku-MCU.
I-POE	Vula amandla.
FFn	Ifulegi lephutha, liphansi elisebenzayo.
WD_Fn	Ifulegi lephutha le-Watchdog, liphansi elisebenzayo.

IDATHA YOKUSEBENZA YEBHHODI LOKUHLOLA

Isigaba esilandelayo sihlinzeka ngedatha yokusebenza yebhodi lokuhlola le-A81411.

UKUHLELWA KWESCHEMATIC
Isibalo esingezansi sibonisa uhlelo lwebhodi lokuhlola le-A81411.

UMTHETHOSIVIVINYO WEZINTO

Ithebula 4: I-A81411 Inguqulo Yezisetshenziswa Zebhodi Lokuhlola

IZINTO ZIKAgesi
Umklami	Ubuningi	Phawula	Incazelo	Umkhiqizi	Inombolo Yengxenye Yomkhiqizi
C1, C5, C16, C17	4	0.10µF	I-CAP CER 0.1 µF 50 V X7R 0402	Murata	I-GCM155R71H104KE02D
C2	1	4.7µF	I-CAP CER 4.7 µF 50 V X5R 0805	Murata	I-GRT21BR61H475ME13L
C4	1	47µF	ICAP ALUM 47 µF 20 % 50 V SMD	Nichicon	UBC1H470MNS1GS
C6	1	1µF	I-CAP CER 1 µF 25 V X7R 0805	Murata	I-GRM219R71E105KA88D
C7	1	0.10µF	I-CAP CER 0.1 µF 50 V X7R 0805	Murata	I-GRM21BR71H104KA01L
C8	1	4.7µF	I-CAP CER 47 µF 10 V X6S 1210	Murata	I-GRT32EC81A476ME13L
C10	1	4.7µF	I-CAP CER 4.7 µF 25 V X5R 0603	Murata	I-GRM188R61E475KE11D
C11	1	10µF	I-CAP CER 10 µF 10 V X5R 0603	Murata	Idatha ye-GRT188R61A106KE13D
C12, C13, C14, C15	4	2.2µF	I-CAP CER 2.2 µF 16 V X5R 0402	Murata	I-GRM155R61C225KE11D
C18	1	0.47µF	I-CAP CER 0.47 µF 50 V X7R 0805	Murata	I-GCM21BR71H474KA55L
D1	1	I-Diode (Schottky)_ DO221BC	I-Diode, i-Schottky, i-45 V, i-3 A, i-DO-221BC	I-Vishay Semiconductors	I-V4PAL45-M3/I
R1, R2	2	1.0 k XNUMX	I-Resistor, 1.0 kΩ, 1/8 W, 1%, 0805	Vishay Dale	Idatha ye-CRCW08051K00FKTA
R3	1	0	I-Resistor, 0Ω, 1W, 2512	I-Stackpole Electronics	I-RMCF2512ZT0R00
R4	1	100 Ω	Isivikeli, 100 Ω, 1/8 W, 1%, 0805	I-Panasonic	I-ERJ-6ENF1000V
R5, R6, R7, R8	4	475 Ω	I-Resistor, 475 Ω 1/4 W, 1%, 1206	I-Panasonic	I-ERJ-8ENF4750V
U1	1	A81411	I-Buck-Boost Pre-Regulator, 5× Linear Regulators kanye ne-SPI	I-Allegro MicroSystems	I-A81411KEVTR-T
L1	1	2.2µH	I-Inductor, 2.2 µH, 12.2 A, 10.3 mΩ	I-Coilcraft	I-XGL6030-222MEC

EZINYE IZIQINISEKISO
Umklami	Ubuningi	Phawula	Incazelo	Umkhiqizi	Inombolo Yengxenye Yomkhiqizi
GND1, GND2, GND4	3	GND	Ibha Ephansi, Ibha Yebhasi engu-18 AWG, 12 mm Umzimba	I-Alpha Wire	297 SV005
j1, uj2	2	I-VLDOBSEL. I-VUCSEL	I-CONN HEADER VERT 3POS 2.54 MM	I-Wurth Electronics	61300311121
J3, J4, J5, J6, J7	5	VUC_RL, VLDOA_ RL, VLDOB_RL, VLDOP1_RL, VLDOP2_RL	I-CONN HEADER VERT 2POS 2.54MM	I-Wurth Electronics	61300211121
J8	1	SPI	I-CONN HEADER VERT 5POS 2.54 mm ye-SPI enephinikhodi ye-VCC	I-Wurth Electronics	61300511121
MS1, MS2, MS3, MS4	4	M3 isikulufu	PAN HEAD SCREW_M3 X 8 MM CROSS SL	I-Wurth Electronics	97790803111
STND1, STND2, STND3, STND4	4	I-M3 Standoff 15 mm	'I-Standoffs & Spacers 5.0 HEX 15.0 mm INYLON	I-Keystone Electronics	25512
SW1, SW2	2	I-ENCAN, ENBAT	SW, SPT	I-ITT C&K	Idatha ye-SDA01H1SBD
I-TP1, TP2, TP3, TP4, TP7, TP9, TP10, TP12, TP13	9	'VBAT, VIN_S, LX1, VREG, VUC, VLDOA, VLDOB, VLDOP1, VLDOP2	Iphoyinti Lokuhlola, Elibomvu, Nge-Hole Mount, 1.6 mm	I-Keystone Electronics	5010
I-TP5, TP6, TP8	3	GND	Iphoyinti Lokuhlola, Elimnyama, Nge-Hole Mount, 1.6 mm	I-Keystone Electronics	5011
I-TP11, TP14, TP15, TP16, TP17, TP18, TP19, TP20, TP21, TP22	1	I-NPOR, neRROR, EN, ENCAN, ENBAT, WD_Fn, FFn, AMUXO, POE, WD_IN	Iphoyinti Lokuhlola, Eliphuzi, Nge-Hole Mount, 1.6 mm	I-Keystone Electronics	5014
X1	1	I-VBAT	I-Terminal Block, 5.08 mm, Iqondile, indawo engu-2	Ukuxhumana kwe-TE	282837-2
C3	1	I-DNP	I-CAP CER 0.1 µF 50 V X7R 0805	Murata	I-GCM21BR71H104KA37K
C9	1	I-DNP	I-CAP CER 22 µF 25 V X7R 1210	Murata	I-GRM32ER71E226ME15L

IZIXHUMANO EZIHLOBANE
Ikhasi lomkhiqizo: https://www.allegromicro.com/en/products/regulate/regulators/multiple-output-regulators/a81411
Ishidi le-data: https://www.allegromicro.com/~/media/files/datasheets/A81411-Datasheet

Umlando Wokubuyekeza

Inombolo	Usuku	Incazelo
-	Februwari 10, 2025	Ukukhishwa kokuqala
1	Februwari 26, 2025	Isigaba sezici ezibuyekeziwe

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Amakhophi alo mbhalo athathwa njengamadokhumenti angalawuleki.

I-Allegro MicroSystems
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www.allegromicro.com

Amadokhumenti / Izinsiza

Ibhodi Lokuhlola I-Allegro MicroSystems A81411 [pdf] Incwadi Yomnikazi A81411, A81411KEVGTR, A81411KEVGTR-1, A81411 Ibhodi Lokuhlola, A81411, Ibhodi Lokuhlola, Ibhodi

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