I-LINEAR TECHNOLOGY LTM4644EY I-Quad 4A Output Shiya Phansi µIsilawuli semojuli
Ulwazi Lomkhiqizo:
- Igama Lomkhiqizo: Incwadi yedemo DC1900A
- Imodeli: LTM4644EY Quad 4A Okukhipha Isinyathelo-Phansi
Incazelo:
I-Demo Manual DC1900A iyibhodi yesekethe eklanyelwe ukuhlola ukusebenza kwemojuli ye-LTM4644EY Quad 4A Output Step-Down. Ifaka ama-capacitor okokufaka ambalwa kanye nokukhiphayo futhi inikeza ivolumu yokuphumayotagilandelela ngephinikhodi ye-TRACK/SS yokulandelana kwesitimela. Ibhodi liphinde lisekele ukuvumelanisa kwewashi langaphandle ngephinikhodi ye-CLKIN. Iphepha ledatha le-LTM4644 kufanele lifundwe ngokuhambisana nale manuwali yedemo ngaphambi kokusebenza noma ukuguqula isekethe yedemo.
Umkhiqizo Imiyalo yokusebenzisa:
Okulandelayo imiyalelo yesinyathelo ngesinyathelo yokusebenzisa i-Demo Manual DC1900A: 1. Inqubo Yokuqalisa Ngokushesha: a. Beka abagxumayo (JP1-JP8) kulezi zikhundla ezilandelayo: – JP1: RUN1 ON – JP2: RUN2 ON – JP3: RUN3 ON – JP4: RUN4 ON – JP8: MODE1 CCM – JP7: MODE2 CCM – JP6: MODE3 CCM – JP5 : MODE4 CCM b. Ngaphambi kokuxhuma noma yiziphi izinto ezisetshenziswayo, setha ngaphambilini ivolumu yokufakatage ukunikezela phakathi kuka-4.5V kuya ku-14V futhi usethe imisinga yokulayisha ibe ngu-0A. c. Xhuma imithwalo, ivolumu yokufakatage supply, kanye namamitha njengoba kukhonjisiwe kuMfanekiso 1 webhukwana lomsebenzisi. 2. Ukulungiswa Kwemithwalo: a. Cisha isekethe. b. Lungisa ama-currents omthwalo wesigaba ngasinye phakathi kwebanga lika-0A ukuya ku-4A. c. Qaphela ukulawulwa komthwalo, ukusebenza kahle, neminye imingcele. 3. Ukwenyuka Kokusebenza Komthwalo Wokukhanya: a. Ukubona ukwanda kokusebenza kahle komthwalo wokukhanya, beka i-Mode pin jumper (JP5-JP8) endaweni ye-DCM Mode.
Qaphela:
Izikhundla ze-jumper ozikhethela zona ziyatholakala ku-DC1900A ukuze kuhlolwe ukusebenza okufanayo kwe-LTM4644. Ngokusebenza okufanayo kwayo yonke imiphumela emi-4, ungafaki ama-jumpers ngama-R32-R46. Sicela ubheke imanuwali yomsebenzisi ukuze uthole ulwazi olwengeziwe kanye nemidwebo yesekethe.
Uhlu Lwezingxenye:
Okulandelayo uhlu lwezingxenye zezingxenye zesekethe ezidingekayo ze-Demo Manual DC1900A: 1. C1, C3:
Ama-Capacitor 2. C6: Capacitor 3. C9, C17, C28, C36: Capacitor 4.
C10, C16, C29, C35: Capacitors 5. R3: Resistor 6. R4: Resistor 7.
R11: Ama-Resistors 8. R12: Resistor 9. U1: Integrated Circuit
Ukwengeza, kunezingxenye ezengeziwe zesekhethi yebhodi ledemo ezisohlwini lwemanuwali yomsebenzisi. Ukuze uthole imidwebo yesekethe enemininingwane kanye nolwazi olwengeziwe, sicela ubheke kumanuwali yomsebenzisi noma uvakashele isixhumanisi esinikeziwe sokuklama files. Umthombo: http://www.linear.com/demo/DC1900A
Incazelo
Isekethe ye-Demonstration 1900A ifaka isilawuli se-LTM®4644EY μModule®, isilawuli sokuphuma phansi esisebenza kahle kakhulu se-quad. I-LTM4644EY inevolthi yokufaka yokusebenzatage ububanzi obungu-4V ukuya ku-14V futhi iyakwazi ukuhlinzeka ngokufika ku-4A kokuphumayo kwamanje kusukela kwesinye nesinye sezigaba zayo.
Ivolumu yomkhiqizo ngamunyetagi-e iyahleleka ukusuka ku-0.6V kuye ku-5.5V.
I-LTM4644EY iyiphoyinti le-DC/DC yesilawuli somthwalo kuphakheji ye-BGA engu-9mm × 15mm × 5.01mm edinga kuphela ama-capacitor okokufaka ambalwa kanye nokuphumayo. Okukhiphayo voltagUkulandela ngomkhondo kuyatholakala ngephinikhodi ye-TRACK/SS ukuze kulandelelwe umzila wesitimela.
Ukuvumelanisa kwewashi kwangaphandle kuyatholakala futhi ngephinikhodi ye-CLKIN. Iphepha ledatha le-LTM4644 kufanele lifundwe ngokuhambisana nale manuwali yedemo ngaphambi kokusebenza noma ukulungisa isekethe yedemo engu-1900A.
Idizayini files zaleli bhodi lesifunda ziyatholakala ku http://www.linear.com/demo/DC1900A
Isifinyezo sokusebenza
Imininingwane iku-TA = 25°C
| I-PARAMETER | IMIBANDELA | VALUE |
| Okokufaka Voltage Ibanga | 4V kuya ku-14V | |
| Okukhipha Umqtage VOUT | I-Jumper Iyakhetheka | I-VOUT1 = 3.3VDC, i-VOUT2 = 2.5VDC,
I-VOUT3 = 1.5VDC, i-VOUT4 = 1.2VDC |
| Ubukhulu Umthwalo Oqhubekayo Wamanje ngakunye okukhiphayo | Ukwehliswa kwesilinganiso kuyadingeka ezimweni ezithile zokusebenza. Bheka ishidi ledatha ukuze uthole imininingwane | Idatha ye-4ADC |
| I-Default Operating Frequency | 1MHz | |
| Ukusebenza kahle | I-VIN = 12V, VOUT1 = 3.3V, IOUT = 4A | 89% Bheka Umfanekiso 2 |
Isithombe Sebhodi
Inqubo Yokuqala Esheshayo
Isekethe ye-Demonstration 1900A iyindlela elula yokuhlola ukusebenza kwe-LTM4644EY. Sicela ubhekisele kuMfanekiso 1 ukuze uthole ukuxhumana kokusetha kabusha bese ulandela inqubo engezansi.
- Uma ucisha amandla, beka ama-jumpers ezindaweni ezilandelayo:
JP1 JP2 JP3 JP4 RUN1 RUN2 RUN3 RUN4 ON ON ON ON JP8 JP7 JP6 JP5 IMODE1 IMODE2 IMODE3 IMODE4 CCM CCM CCM CCM - Ngaphambi kokuxhuma ukunikezwa kokufakwayo, imithwalo namamitha, setha ngaphambili ivolthi yokufakatagukunikezwa kwe-e kufanele kube phakathi kuka-4.5V kuya ku-14V. Misa kusengaphambili imisinga yokulayisha ibe ngu-0A.
- Uma ugesi ucishiwe, xhuma imithwalo, ivolumu yokufakatage supply namamitha njengoba kukhonjisiwe kuMfanekiso 1.
- Vula ukunikezwa kwamandla okokufaka. Umthamo wokukhiphatagamamitha ama-e esigaba ngasinye kufanele abonise ivolumu yokuphuma ehleliwetage ngaphakathi ± 2%.
- Once okukhiphayo voltagi-e iyasungulwa, lungisa ama-currents omthwalo wesigaba ngasinye ngaphakathi kobubanzi obungu-0A kuya ku-4A futhi ubheke ukulawulwa komthwalo, ukusebenza kahle, neminye imingcele.
- Ukubona ukwanda komthwalo wokukhanya beka i-Mode pin jumper (JP5-JP8) endaweni ye-DCM Mode.
Qaphela: Izikhundla ze-jumper ozikhethela zona ziyatholakala ku-DC1900A ukuvumela ukusetha okulula ukuhlola ukusebenza okuhambisanayo kwe-LTM4644. Okwesiboneloample, ukuhambisana nayo yonke imiphumela emi-4 ye-LTM4644 ndawonye izinto ezingu-0Ω ama-jumper ngama-R32-R46.
Uhlu Lwezingxenye
| ITEM | QTY | IREferensi | INGXENYE INCAZELO | UMENZI/INGXENYE INOMBOLO |
Izingxenye Zesekethe Ezidingekayo
| 1 | 2 | C1, C3 | CAP, 1206, CER. 22µF 25V X5R 20% | I-MURATA, GRM31CR61E226KE15L |
| 2 | 1 | C6 | I-CAP, 0603, X5R, 1uF, 16V 10% | I-AVX, 0603YD105KAT2A |
| 3 | 4 | C9, C17, C28, C36 | CAP, 1210 CER. 47µF 6.3V | I-AVX, 12106D476MAT2A |
| 4 | 4 | C10, C16, C29, C35 | I-CAP, 1206, X5R, 47uF, 6.3V, 20% | TAIYO YUDEN, JMK316BJ476ML |
| 5 | 1 | R3 | I-RES, 0603, 13.3kΩ 1% 1/10W | I-VISHAY CRCW060313K3FKEA |
| 6 | 1 | R4 | I-RES, 0603, 40.2kΩ 1% 1/10W | I-VISHAY CRCW060340K2FKEA |
| 7 | 2 | R11 | I-RES, 0603, 19.1kΩ 1% 1/10W | I-VISHAY CRCW060319K1FKEA |
| 8 | 1 | R12 | I-RES, 0603, 60.4kΩ 1% 1/10W | I-VISHAY CRCW060360K4FKEA |
| 9 | 1 | U1 | I-LTM4644EY, BGA-15X9-5.01 | I-LINEAR TECH.CORP. I-LTM4644EY |
Izingxenye Zesekethe Yebhodi Yedemo Eyengeziwe
| 1 | 2 | C4, C5 | CAP, 1206, CER. 22µF 25V X5R 20% | I-MURATA, GRM31CR61E226KE15L |
| 2 | 1 | C2 | I-CAP, 7343, POSCAP 68µF 16V | SANYO, 16TQC68MYF |
| 3 | 6 | C7, C21, C22, C31, C41, C42 | CAP, 0603, OPTION | OPTION |
| 4 | 4 | C8, C18, C27, C37 | CAP, 7343, POSCAP, OPTION | OPTION |
| 5 | 8 | C11, C12, C14, C15, C30, C38, C33, C34 | CAP, 1206, CER., OPTION | OPTION |
| 6 | 2 | C13, C32 | CAP, 0603, CER., 100PF | I-AVX 06033C101KAT2A |
| 7 | 4 | R7, R8, R15, R16 | I-RES, 0603, 0Ω 1% 1/10W | VISHAY, CRCW06030000Z0ED |
| 8 | 1 | R28 | I-RES, 0805, 0Ω 5% 1/16W | I-VISHAY, CRCW08050000Z0EA |
| 9 | 4 | R19, R20, R21, R22 | I-RES, 0603, 150kΩ 5% 1/10W | VISHAY CRCW0603150KJNEA |
| 10 | 4 | R23, R24, R25, R26 | I-RES, 0603, 100kΩ 5% 1/10W | VISHAY CRCW0603100KJNEA |
| 11 | 4 | R9, R10, R17, R18 | RES, 0603, OPTION | OPTION |
| 12 | 12 | R32-R35, R37-R40, R42-R45 (OPT) | RES, 0603, OPTION | OPTION |
| 13 | 3 | I-R36, R41, R46 (OPT) | I-RES, 2512, 0Ω, OPTION | OPTION |
| 14 | 4 | C25, C26, C45, C46 | CAP, 0603, CER. 10µF 50V X7R | I-TDK, C1608X7R1H104M |
| 15 | 1 | R1 | RES., 0603, CHIP, 10k, 1% | I-VISHAY, CRCW060310K0FKED |
| 16 | 1 | R2 | I-RES, 0603, 1Ω 5% 1/10W | VISHAY,CRCW06031R00JNEA |
| 17 | 4 | R27, R29, R30, R31 | I-RES, 0603, 100kΩ 5% 1/10W | VISHAY CRCW0603100KJNEA |
Izingxenyekazi zekhompuyutha
| 1 | 16 | E1, E3-E17 | TESTPOINT, TURRET 0.094″ | MILLMAX 2501-2-00-80-00-00-07-0 |
| 2 | 2 | j1, uj2 | JACK, UBHANA | KEYSTONE 575-4 |
| 3 | 8 | I-JP1-JP8 | I-JMP, 0.079 INHLOKO YOMUDA OWODWA, AMAPHINI angu-3 | I-SULLINS, NRPN031PAEN-RC |
| 4 | 8 | I-XJP1-XJP8 | SHUNT, .079″ CENTRE | SAMTEC, 2SN-BK-G |
| 5 | 4 | AMA-STAND-OFF | STAND-OFF, SNAP ON, Inayiloni 0.375″ TALL | I-KEYSTONE, 8832(IYAQHUBEKA) |
Umdwebo wohlelo
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Amadokhumenti / Izinsiza
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I-LINEAR TECHNOLOGY LTM4644EY I-Quad 4A Output Shiya Phansi µIsilawuli semojuli [pdf] Umhlahlandlela Womsebenzisi LTM4644EY I-Quad 4A Isilawuli Semojula yokuphumayo kokuphumayo, LTM4644EY, Isilawuli semojula ye-Quad 4A yokuphumayo kokuphumayo, Isilawuli semojula ye-Step Down, Isilawuli semojuli, Isilawuli |