Awọn ẸRỌ ANALOG LTM4702EY Igbesẹ Isalẹ Module Alakoso Itọkasi Itọkasi Ariwo Kekere
Apejuwe
Igbimọ igbelewọn EVAL-LTM4702-AZ jẹ igbesẹ-isalẹ DC/DC oluyipada iyipada ti o nfihan olutọsọna LTM®4702 μModule®. A ṣe apẹrẹ igbimọ igbelewọn lati fi 8A ti o pọju lọwọlọwọ lọwọlọwọ lati titẹ sii 4V si 16V. LTM4702 naa n gba iṣẹ faaji Silent Switcher® pẹlu awọn agbara ipadanu igbona lupu inu inu lati ṣaṣeyọri mejeeji EMI kekere ati ṣiṣe giga. LTM4702 naa ni IC olutọsọna ipo lọwọlọwọ, inductor agbara, ati iwọn iwonba ti igbewọle ati agbara iṣelọpọ. A nikan resistor (R3) kn awọn wu voltage, pese iṣiṣẹ iṣọkan ere lori ibiti o ti njade, ti o mu ki ariwo idajade igbagbogbo ni ominira ti iṣelọpọ voltage.
EVAL-LTM4702-AZ igbimọ igbelewọn aiyipada iyipada igbohunsafẹfẹ jẹ 800kHz. Ohun ita resistor ti wa ni gbe lati RT pin si GND (R7) lati ṣeto awọn ipo igbohunsafẹfẹ.
Awọn eto pin SYNC meta o yatọ si awọn ipo iṣẹ (JP1 jumper): yan PULSE fun pulse-skipping mode pẹlu imudara ṣiṣe ni ina èyà; yan FCM fun iṣẹ ipo lilọsiwaju fi agbara mu nibiti iṣiṣẹ igbohunsafẹfẹ ti o wa titi jẹ pataki ju ṣiṣe lọwọlọwọ kekere lọ ati nibiti o fẹ ripple ti o kere julọ; yan SYNC lati muuṣiṣẹpọ si ifihan aago ita.
A le lo ebute RUN lati ṣeto LTM4702 ni ipo tiipa. Awọn agbara ti o dara o wu (PG) yoo jẹ kekere nigbati awọn wu voltage wa ni ita ti ± 7.5% window ilana. Nigbati a ba lo ẹya ti o dara agbara, ṣeto iye PGSET resistor (R1) ni ibamu si awọn olutọsọna olutọsọna vol.tage.
Iwe data LTM4702 n funni ni apejuwe pipe ti isẹ ati alaye ohun elo. Iwe data gbọdọ jẹ kika ni apapo pẹlu igbimọ igbelewọn yii.
Apẹrẹ files fun yi Circuit ọkọ wa o si wa.
PHOTO ọkọ
Siṣamisi apakan jẹ boya ami inki tabi ami laser
Akopọ išẹ
Awọn pato wa ni TA = 25°C
| PARAMETER | AWỌN NIPA | MIN TYP Max | V |
| Iṣagbewọle Voltage Ibiti | 4 16 | V | |
| O wujade Voltage | VIN = 4V to 16V, IOUT = 0A to 8A | 1 ± 2% | A |
| O pọju Ijade Lọwọlọwọ | VIN = 4V to 16V | 8 | A |
| Aṣoju Igbohunsafẹfẹ Yipada | 800 | kHz | |
| Aṣoju ṣiṣe | VIN = 12V, IOUT = 8A | 80.5 | % |
KI Bẹrẹ Ilana
Board igbelewọn EVAL-LTM4702-AZ rọrun lati ṣeto lati ṣe iṣiro iṣẹ ti LTM4702. Wo Nọmba 1 fun iṣeto ohun elo wiwọn to dara ki o tẹle ilana ni isalẹ.
- Pẹlu pipa agbara, so ipese agbara titẹ sii pọ si VIN (4V si 16V) ati GND (ipadabọ titẹ sii).
- So fifuye o wu 1V laarin VOUT ati GND (Iru akọkọ: ko si fifuye).
- So awọn DVM pọ si titẹ sii ati iṣẹjade. Ṣeto ipo jumper aiyipada:
JP1: FCM NIPA
JP2: 120 PS NIPA - Tan ipese agbara titẹ sii ki o ṣayẹwo fun iṣẹjade to dara voltage. VOUT yẹ ki o jẹ 1V ± 2%.
- Ni kete ti awọn to dara o wu voltage ti wa ni idasilẹ, satunṣe awọn fifuye laarin awọn ọna ibiti o si kiyesi awọn wu voltage ilana, ṣiṣe, ati awọn miiran sile.
AKIYESI: Nigba idiwon abajade tabi titẹ sii voltage ripple, ma ṣe lo awọn gun ilẹ asiwaju lori oscilloscope ibere. Wo olusin 2 fun ilana iwadii iwọn to dara. Awọn ọna kukuru, lile le jẹ tita si awọn (+) ati (-) ebute oko o wu kapasito. Oruka ilẹ ti iwadii nilo lati fi ọwọ kan (-) asiwaju, ati sample ibere nilo lati fi ọwọ kan awọn (+) asiwaju.
Aṣoju Iṣe Awọn abuda
Olusin 1. Ṣiṣeto Ohun elo Ohun elo Ti o tọ
Nọmba 2. Idiwọn Ijade Ripple Voltage
Esi idanwo
Olusin 3. Ṣiṣe vs Load Lọwọlọwọ, VIN = 12V
Olusin 4. O wujade Voltage Ripple (12VIN, 1V, 8A Ijade)
Olusin 5. Gbe Igbeyewo Igbeyewo Irekọja (VIN = 12V, VOUT = 1V)
Olusin 6. Aworan Gbona, VIN = 12V, 1V, Ijade 8A (Ko si Igi Ooru, Ko si Fi agbara mu Afẹfẹ)
NIPA PIPIN OWO
| Nkan | QTY | Itọkasi | APA Apejuwe | Olupese / PART NOMBA |
| 1 | 1 | C1 | CAP., ALUM POLY HYBRID, 100μF, 25V, 20%, 6.3mm × 7.7mm, AEC-Q200 | PANASONIC, EEHZC1E101XP |
| 2 | 1 | C10 | CAP. CER, 1μF, 25V, 10%, X7R, 0603, AEC-Q200 | TDK, CGA3E1X7R1E105K080AC |
| 3 | 2 | C11, C12 | CAP. CER, 22μF, 25V, 10%, X7R, 1210 | MURATA, GRM32ER71E226KE15L |
| 4 | 4 | C13, C14, C15, C16 | CAP. CER, 10μF, 6.3V, 20%, X7S, 0603 | TDK, C1608X7S0J106M080AC |
| 5 | 2 | C6, C17 | CAP. CER, 100μF, 10V, 20%, X5R, 1206, LOW ESR | TDK, C3216X5R1A107M160AC |
| 6 | 3 | C18, C23, C24 | CAP. CER, 0.1μF, 25V, 10%, X7R, 0603 | SAMSUNG, CL10B104KA8NNNC |
| 7 | 1 | C19 | CAP. CER, 2200pF, 16V, 10%, X7R, 0603 | VISHAY, VJ0603Y222KXJCW1BC |
| 8 | 1 | C2 | CAP. CER, 22μF, 25V, 20%, X5R, 0805, AEC-Q200 | MURATA, GRT21BR61E226ME13L |
| 9 | 2 | C21, C22 | CAP FEEDTHRU, 4.7μF, 10V, 20%, 0805, 3-TERMINAL | MURATA, NFM21PC475B1A3D |
| 10 | 3 | C3, C4, C5 | CAP. CER, 2.2μF, 25V, 10%, X5R, 0603 | MURATAGRM188R61E225KA12D |
| 11 | 1 | C9 | CAP. CER, 1μF, 10V, 10%, X7R, 0805 | AVX, 0805ZC105KAT2A |
| 12 | 1 | FB1 | IND., CHIP FERRITE Bead, 0.015Ω, DCR, 5.1A | WURTH ELEKTRONIK, 74279228600 |
| 13 | 1 | L1 | IND., AGBARA WIREWOUND ti o daabo bo, 0.0073Ω, DCR, 9.5A | WURTH ELEKTRONIK, 744373240022 |
| 14 | 1 | R1 | RES., SMD, 49.9k, 1%, 1/10W, 0603, AEC-Q200 | PANASONIC, ERJ-3EKF4992V |
| 15 | 1 | R10 | RES., SMD, 0Ω, 1%, 1/4W, 1206 | VISAYWSL, 120600000ZEA9 |
| 16 | 1 | R12 | RES., 1.2k, 1%, 1/10W, 0603, AEC-Q200 | VISHAY, CRCW06031K20FKEA |
| 17 | 1 | R13 | RES., SMD, 0Ω, JUMPER, 1/10W, 0603, AEC-Q200, AGBARA PRECISION | VISHAY, CRCW06030000Z0EA |
| 18 | 2 | R2, R5 | RES., SMD, 100k, 1%, 1/10W, 0603, AEC-Q200 | PANASONIC, ERJ-3EKF1003V |
| 19 | 1 | R3 | RES., SMD, 10k 1%, 1/10W, 0603, AEC-Q200 | PANASONIC, ERJ-3EKF1002V |
| 20 | 1 | R4 | RES., SMD, 1Ω, 1%, 1/10W, 0603 | YAGEO, RC0603FR-071RL |
| 21 | 1 | R7 | RES., 137k, 1%, 1/10W, 0603, AEC-Q200 | VISHAY, CRCW0603137KFKEA |
| 22 | 1 | U1 | IC-ADI, 18VIN, 8A, Yipada ipalọlọ, μModule REGULATOR | ẸRỌ Afọwọṣe, LTM4702EY#PBF |
| 18 | 0 | C7, C8, C20, C25 | IYAN KAPACITOR | |
| 19 | 0 | R6, R8, R9, R11 | Iyan RESISTOR | |
| 20 | 0 | L2 | INU INDUCTOR | |
| 24 | 2 | J1, J2 | CONN., PCB, SMA, JACK OBIRIN, RCP, 50Ω | MOLEX, 732511350 |
| 26 | 2 | JP1, JP2 | CONN., HDR, MALE, 2 × 3, 2mm, VERT, ST, THT | WURTH ELEKTRONIK, 62000621121 |
| 27 | 4 | STANDOFF, BRD, SPT, SNAP-FIT, 9.53mm IGUGUN, EVAL BOARD MTG | KEYSTONE, 8832 | |
| 28 | 2 | CONN., SHUNT, OBINRIN, 2-POS, 2mm | KEYSTONE, 8831 | |
| 29 | 1 | PCBs | FAB tejede CIRCUIT Board | WURTH ELEKTRONIK, 702931000 |
DIAGRAM IWADII
ITAN Àtúnse
| OSI | DATE | Apejuwe | NỌMBA OJU |
| 0 | 04/23 | Itusilẹ akọkọ | — |
ESD Išọra
ESD (electrostatic yosita) kókó ẹrọ. Awọn ẹrọ ti o gba agbara ati awọn igbimọ iyika le ṣe idasilẹ laisi wiwa. Botilẹjẹpe ọja yi ṣe ẹya itọsi tabi iyika aabo ohun-ini, ibajẹ le waye lori awọn ẹrọ ti o wa labẹ agbara giga ESD. Nitorinaa, awọn iṣọra ESD to tọ yẹ ki o mu lati yago fun ibajẹ iṣẹ tabi isonu ti iṣẹ ṣiṣe
Ofin ofin ati ipo
Nipa lilo igbimọ igbelewọn ti a jiroro ninu rẹ (paapọ pẹlu awọn irinṣẹ eyikeyi, awọn iwe ohun elo tabi awọn ohun elo atilẹyin, “Igbimọ Iṣiro”), o n gba lati di alaa nipasẹ awọn ofin ati ipo ti a ṣeto si isalẹ (“Adehun”) ayafi ti o ba ti ra Igbimọ Igbelewọn, ninu eyiti ọran Awọn ofin boṣewa Awọn ẹrọ Analog yoo ṣe akoso. Maṣe lo Igbimọ Igbelewọn titi ti o ba ti ka ati gba Adehun naa. Lilo rẹ ti Igbimọ Igbelewọn yoo tọka si gbigba ti Adehun naa. Adehun yii jẹ nipasẹ ati laarin iwọ (“Onibara”) ati Awọn ẹrọ Analog, Inc. (“ADI”), pẹlu aaye akọkọ ti iṣowo ni Ọna Ọna kan, Norwood, MA 02062, AMẸRIKA. Koko-ọrọ si awọn ofin ati ipo ti Adehun naa, ADI n fun Onibara ni ọfẹ, lopin, ti ara ẹni, igba diẹ, ti kii ṣe iyasọtọ, ti kii ṣe sublicensable, iwe-aṣẹ gbigbe ti kii ṣe gbigbe lati lo Igbimọ Igbelewọn FUN Awọn idi Iṣiro NIKAN. Onibara loye ati gba pe Igbimọ Igbelewọn ti pese fun ẹri nikan ati idi iyasọtọ ti a tọka si loke, ati gba lati ma lo Igbimọ Igbelewọn fun idi miiran. Pẹlupẹlu, iwe-aṣẹ ti a fun ni ni kikun jẹ koko-ọrọ si awọn aropin afikun atẹle wọnyi: Onibara kii yoo (i) yalo, yalo, ṣafihan, ta, gbigbe, fi sọtọ, iwe-aṣẹ, tabi pinpin Igbimọ Igbelewọn; ati (ii) gba ẹnikẹta laaye lati wọle si Igbimọ Igbelewọn. Gẹgẹbi a ti lo ninu rẹ, ọrọ naa “Ẹgbẹ Kẹta” pẹlu eyikeyi nkan miiran yatọ si ADI, Onibara, awọn oṣiṣẹ wọn, awọn alafaramo ati awọn alamọran inu ile. Igbimọ Igbelewọn KO ta si Onibara; gbogbo awọn ẹtọ ti a ko funni ni pato ninu rẹ, pẹlu nini ti Igbimọ Igbelewọn, ni ipamọ nipasẹ ADI. ASIRI. Adehun yii ati Igbimọ Igbelewọn ni ao gba gbogbo rẹ si alaye ikọkọ ati ohun-ini ti ADI. Onibara le ma ṣe afihan tabi gbe eyikeyi apakan ti Igbimọ Igbelewọn si eyikeyi ẹgbẹ miiran fun eyikeyi idi. Lẹhin idaduro lilo Igbimọ Igbelewọn tabi ifopinsi Adehun yii, Onibara gba lati da Igbimọ Igbelewọn pada ni kiakia si ADI. ÀFIKÚN awọn ihamọ. Onibara le ma tuka, ṣajọ tabi yiyipada awọn eerun ẹlẹrọ lori Igbimọ Igbelewọn. Onibara yoo sọfun ADI ti eyikeyi awọn ibajẹ ti o ṣẹlẹ tabi eyikeyi awọn iyipada tabi awọn iyipada ti o ṣe si Igbimọ Igbelewọn, pẹlu ṣugbọn kii ṣe opin si tita tabi eyikeyi iṣẹ miiran ti o kan akoonu ohun elo ti Igbimọ Igbelewọn. Awọn iyipada si Igbimọ Igbelewọn gbọdọ wa ni ibamu pẹlu ofin to wulo, pẹlu ṣugbọn kii ṣe opin si Itọsọna RoHS. TERMINATION. ADI le fopin si Adehun yii nigbakugba lori fifun akiyesi kikọ si Onibara. Onibara gba lati pada si ADI Igbimọ Igbelewọn ni akoko yẹn.
OPIN TI layabiliti. Igbimo igbelewọn ti a pese ni ibi ni a pese “BI o ti ri” ATI ADI KO SE ATILẸYIN ỌJA TABI awọn aṣoju fun iru eyikeyi pẹlu ọwọ si. ADI PATAKI PATAKI KANKAN awọn oniduro, awọn iṣeduro, awọn iṣeduro, tabi awọn iṣeduro, KIAKIA TABI TITUN, ti o jọmọ igbimọ igbelewọn pẹlu, ṣugbọn ko ni opin si, ATILẸYIN ỌJA ti Ọja, LASE iṣẹlẹ ti Adi ati awọn oniwe-ašẹ yoo jẹ oniduro fun eyikeyi iṣẹlẹ, PATAKI, aiṣedeede, tabi Abajade Abajade lati nini onibara TABI LILO ti awọn igbelewọn Board, PẸLU GBEGBE, LATI GBEGBE , LATI GBE OPOLOSTOS POST. APAPO ADI LATI EYIKEYI ATI OHUN OHUN GBOGBO YOO NI OPIN SI IYE OGORUN US dola ($100.00). OJA SIWAJU. Onibara gba pe kii yoo ṣe okeere taara tabi fi ogbon aiṣe-taara gbe Igbimọ Igbelewọn lọ si orilẹ-ede miiran, ati pe yoo ni ibamu pẹlu gbogbo awọn ofin ati ilana ijọba ipinlẹ Amẹrika to wulo ti o jọmọ awọn ọja okeere. ÒFIN Ìṣàkóso. Adehun yii ni yoo ṣe akoso ati tumọ ni ibamu pẹlu awọn ofin pataki ti Agbaye ti Massachusetts (laisi ija awọn ofin ofin). Eyikeyi igbese ti ofin nipa Adehun yii yoo gbọ ni ipinlẹ tabi awọn kootu ijọba ti o ni aṣẹ ni Suffolk County, Massachusetts, ati Onibara ni bayi fi silẹ si ẹjọ ti ara ẹni ati aaye ti iru awọn ile-ẹjọ. Adehun Ajo Agbaye lori Awọn adehun fun Titaja Awọn ọja Kariaye ko ni kan si Adehun yii ati pe o jẹ aibikita.
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Awọn ẸRỌ ANALOG LTM4702EY Igbesẹ Isalẹ Module Alakoso Itọkasi Ariwo Kekere [pdf] Ilana itọnisọna LTM4702EY Igbesẹ Isalẹ Module Regulator Itọkasi Ariwo Kekere, LTM4702EY, Itọkasi Module Igbesẹ isalẹ Itọkasi ariwo kekere |
