LINEAR TECHNOLOGY LTM4644EY Quad 4A Output Step Down µMojule Regulator
Lintlha tsa Sehlahisoa:
- Lebitso la Sehlahiswa: Lethathamo la lintlha tsa DC1900A
- Mohlala: LTM4644EY Quad 4A Output Mohato tlase
Tlhaloso:
Buka ea Demo ea DC1900A ke boto ea potoloho e etselitsoeng ho lekola tšebetso ea module ea LTM4644EY Quad 4A Output Step-Down. E na le li-capacitor tse 'maloa tsa ho kenya le ho hlahisa' me e fana ka tlhahiso ea voltage latedisa ka phini ea TRACK/SS bakeng sa tatellano ea seporo sa phepelo. Boto e boetse e ts'ehetsa khokahano ea oache ea kantle ka phini ea CLKIN. Leqephe la data la LTM4644 le lokela ho baloa hammoho le bukana ena ea demo pele o sebetsa kapa o fetola potoloho ea demo.
Sehlahisoa Litaelo tsa Tšebeliso:
Tse latelang ke litaelo tsa mohato ka mohato tsa ho sebelisa Buka ea Demo DC1900A: 1. Mokhoa oa ho Qala ka Potlako: a. Beha batho ba tlolang (JP1-JP8) maemong a latelang: – 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. Pele o hokela lisebelisoa life kapa life, seta pele bophahamo ba modumotage fana ka pakeng tsa 4.5V ho 14V le ho beha maqhubu a mojaro ho 0A. c. Hokela meroalo, input voltage phepelo, le limithara joalo ka ha ho bontšitsoe setšoantšong sa 1 sa bukana ea mosebelisi. 2. Phetoho ea Mojaro: a. Tlosa potoloho. b. Fetola maqhubu a mojaro bakeng sa mohato ka mong ka har'a sebaka sa 0A ho isa ho 4A. c. Ela hloko taolo ea mojaro, ts'ebetso e nepahetseng, le liparamente tse ling. 3. Keketseho e Ntle ea Mojaro oa Leseli: a. Ho bona ts'ebetso e ntseng e eketseha ea mojaro o bobebe, beha Mode pin jumper (JP5-JP8) sebakeng sa DCM Mode.
Hlokomela:
Maemo a boikhethelo a jumper a fumaneha ho DC1900A ho lekola ts'ebetso e ts'oanang ea LTM4644. Bakeng sa ts'ebetso e ts'oanang ea lihlahisoa tsohle tse 4, u se ke ua kenya jumpers leha e le efe bakeng sa R32-R46. Ka kopo sheba buka ea mosebelisi bakeng sa tlhaiso-leseling e eketsehileng le litšoantšo tsa potoloho.
Lethathamo la Likarolo:
Lenane le latelang ke la likarolo bakeng sa likarolo tse hlokahalang tsa potoloho ea Buka ea Demo DC1900A: 1. C1, C3:
Li-Capacitor 2. C6: Capacitor 3. C9, C17, C28, C36: Li-Capacitor 4.
C10, C16, C29, C35: Capacitors 5. R3: Resistor 6. R4: Resistor 7.
R11: Resistors 8. R12: Resistor 9. U1: Integrated Circuit
Ho feta moo, ho na le likarolo tse ling tsa potoloho ea boto ea demo tse thathamisitsoeng bukeng ea mosebelisi. Bakeng sa litšoantšo tse qaqileng tsa potoloho le lintlha tse ling, ka kopo sheba buka ea mosebedisi kapa etela sehokelo se fanoeng bakeng sa moralo files. Mohloli: http://www.linear.com/demo/DC1900A
Tlhaloso
Pontšo ea potoloho ea 1900A e na le molaoli oa LTM®4644EY μModule®, e leng setsi se phahameng sa ts'ebetso e phahameng ea quad output step-down regulator. LTM4644EY e na le matla a ho kenya tšebetsongtage fapaneng ea 4V ho ea ho 14V mme e khona ho fana ka 4A ea tlhahiso ea hona joale ho tloha ho e 'ngoe le e' ngoe ea mekhahlelo ea eona.
Karolo e 'ngoe le e 'ngoe ea tlhahisotage ke programmable ho tloha 0.6V ho 5.5V.
LTM4644EY ke DC/DC point of load regulator ka har'a sephutheloana sa 9mm × 15mm × 5.01mm BGA se hlokang feela li-capacitor tse seng kae tsa ho kenya le ho tsoa. Sephetho voltagE tracking e fumaneha ka pinana ea TRACK/SS bakeng sa tatellano ea seporo sa phepelo.
Khokahano ea oache ea kantle e fumaneha hape ka phini ea CLKIN. Leqephe la lintlha la LTM4644 le tlameha ho baloa mmoho le bukana ea demo pele ho sebetsa kapa ho fetola demo circuit 1900A.
Moralo files bakeng sa boto ena ea potoloho li fumaneha ho http://www.linear.com/demo/DC1900A
Kakaretso ea Ts'ebetso
Litlhaloso li ho TA = 25°C
| PARAMETER | MAEMO | VALUE |
| Keletso Voltage Range | 4V ho isa ho 14V | |
| Khumo Voltage VOUT | Jumper e ka khethoang | VOUT1 = 3.3VDC, VOUT2 = 2.5VDC,
VOUT3 = 1.5VDC, VOUT4 = 1.2VDC |
| Boholo bo Tsoelang Pele ba Mojaro ba Hona Joale ka Sephetho | Ho fokotseha hoa hlokahala bakeng sa maemo a itseng a sebetsang. Sheba leqephe la data bakeng sa lintlha | 4ADC |
| Maqhubu a Tshebetso a Default | 1MHz | |
| Katleho | VIN = 12V, VOUT1 = 3.3V, IOUT = 4A | 89% Sheba Setšoantšo sa 2 |
Setšoantšo sa Boto
Mokhoa oa ho Qala ka Potlako
Potoloho ea 1900A ke mokhoa o bonolo oa ho lekola ts'ebetso ea LTM4644EY. Ka kopo sheba Setšoantšo sa 1 bakeng sa likhokahano tsa ho seta liteko 'me u latele mokhoa o ka tlase.
- Ha motlakase o tima, beha li-jumpers libakeng tse latelang:
JP1 JP2 JP3 JP4 RUN1 RUN2 RUN3 RUN4 ON ON ON ON JP8 JP7 JP6 JP5 MODE1 MODE2 MODE3 MODE4 CCM CCM CCM CCM - Pele o hokahanya phepelo ea ho kenya, meroalo le limithara, seta pele bophahamo ba modumotagphepelo ea e lokela ho ba pakeng tsa 4.5V le 14V. Hlophisa meroalo esale pele ho 0A.
- Ha motlakase o tima, hokela meroalo, voltage phepelo le limithara joalokaha ho bontšitsoe setšoantšong sa 1.
- Bulela phepelo ea motlakase. Sephetho sa voltagLimithara tsa mokhahlelo ka mong li lokela ho bonts'a phallo e hlophisitsoeng ea voltage ka hare ho ± 2%.
- Hang sephetho se nepahetseng voltage thehiloe, lokisa maqhubu a mojaro bakeng sa mohato o mong le o mong ka har'a sebaka sa 0A ho isa ho 4A 'me u shebe taolo ea mojaro, katleho le likarolo tse ling.
- Ho bona ts'ebetso e eketsehileng ea mojaro o bobebe beha Mode pin jumper (JP5-JP8) sebakeng sa DCM Mode.
Hlokomela: Maemo a boikhethelo a jumper a fumaneha ho DC1900A ho lumella ho seta habonolo ho lekola ts'ebetso e ts'oanang ea LTM4644. Bakeng sa mohlalaample, ho tsamaisana le liphetho tsohle tse 4 tsa LTM4644 hammoho lintho tse 0Ω jumpers bakeng sa R32-R46.
Lethathamo la Likarolo
| ITEM | QTY | TŠEBELETSO | KAROLO TLHALOSO | MOHLAHLI/KAROLO YA KAROLO |
Likarolo tse Hlokehang tsa Potoloho
| 1 | 2 | C1, C3 | CAP, 1206, CER. 22µF 25V X5R 20% | MURATA, GRM31CR61E226KE15L |
| 2 | 1 | C6 | CAP, 0603, X5R, 1uF, 16V 10% | AVX, 0603YD105KAT2A |
| 3 | 4 | C9, C17, C28, C36 | CAP, 1210 CER. 47µF 6.3V | AVX, 12106D476MAT2A |
| 4 | 4 | C10, C16, C29, C35 | CAP, 1206, X5R, 47uF, 6.3V, 20% | TAIYO YUDEN, JMK316BJ476ML |
| 5 | 1 | R3 | RES, 0603, 13.3kΩ 1% 1/10W | Tlhaloso: VISHAY CRCW060313K3FKEA |
| 6 | 1 | R4 | RES, 0603, 40.2kΩ 1% 1/10W | Tlhaloso: VISHAY CRCW060340K2FKEA |
| 7 | 2 | R11 | RES, 0603, 19.1kΩ 1% 1/10W | Tlhaloso: VISHAY CRCW060319K1FKEA |
| 8 | 1 | R12 | RES, 0603, 60.4kΩ 1% 1/10W | Tlhaloso: VISHAY CRCW060360K4FKEA |
| 9 | 1 | U1 | LTM4644EY, BGA-15X9-5.01 | LINEAR TECH.CORP. LTM4644EY |
Likarolo tse ling tsa Potoloho ea Boto ea Demo
| 1 | 2 | C4, C5 | CAP, 1206, CER. 22µF 25V X5R 20% | MURATA, GRM31CR61E226KE15L |
| 2 | 1 | C2 | CAP, 7343, POSCAP 68µF 16V | SANYO, 16TQC68MYF |
| 3 | 6 | C7, C21, C22, C31, C41, C42 | CAP, 0603, KHETHO | KHETHO |
| 4 | 4 | C8, C18, C27, C37 | CAP, 7343, POSCAP, KHETHO | KHETHO |
| 5 | 8 | C11, C12, C14, C15, C30, C38, C33, C34 | CAP, 1206, CER., KHETHO | KHETHO |
| 6 | 2 | C13, C32 | CAP, 0603, CER., 100PF | Tlhaloso: AVX 06033C101KAT2A |
| 7 | 4 | R7, R8, R15, R16 | RES, 0603, 0Ω 1% 1/10W | VISHAY, CRCW06030000Z0ED |
| 8 | 1 | R28 | RES, 0805, 0Ω 5% 1/16W | VISHAY, CRCW08050000Z0EA |
| 9 | 4 | R19, R20, R21, R22 | RES, 0603, 150kΩ 5% 1/10W | VISHAY CRCW0603150KJNEA |
| 10 | 4 | R23, R24, R25, R26 | RES, 0603, 100kΩ 5% 1/10W | VISHAY CRCW0603100KJNEA |
| 11 | 4 | R9, R10, R17, R18 | RES, 0603, KHETHO | KHETHO |
| 12 | 12 | R32-R35, R37-R40, R42-R45 (OPT) | RES, 0603, KHETHO | KHETHO |
| 13 | 3 | R36, R41, R46 (OPT) | RES, 2512, 0Ω, KHETHO | KHETHO |
| 14 | 4 | C25, C26, C45, C46 | CAP, 0603, CER. 10µF 50V X7R | TDK, C1608X7R1H104M |
| 15 | 1 | R1 | RES., 0603, CHIP, 10k, 1% | Setšoantšo sa CRCW060310K0FKED |
| 16 | 1 | R2 | RES, 0603, 1Ω 5% 1/10W | VISHAY,CRCW06031R00JNEA |
| 17 | 4 | R27, R29, R30, R31 | RES, 0603, 100kΩ 5% 1/10W | VISHAY CRCW0603100KJNEA |
Lisebelisoa
| 1 | 16 | E1, E3-E17 | TESTPOINT, TURRET 0.094″ | MILLMAX 2501-2-00-80-00-00-07-0 |
| 2 | 2 | J1, j2 | JACK, BANANA | KEYSTONE 575-4 |
| 3 | 8 | JP1-JP8 | JMP, 0.079 TLHOKOMELISO EA MOELA O LE SONG, LIPHINI 3 | SULLINS, NRPN031PAEN-RC |
| 4 | 8 | XJP1-XJP8 | SHUNT, .079 ″ SEHARE | SAMTEC, 2SN-BK-G |
| 5 | 4 | EMAMANG TS'OANE | EMA, SNAP ON, NYLON 0.375 ″ TALL | KEYSTONE, 8832(SNAP ON) |
Setšoantšo sa Schematic
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Litokomane / Lisebelisoa
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LINEAR TECHNOLOGY LTM4644EY Quad 4A Output Step Down µMojule Regulator [pdf] Bukana ea Mosebelisi LTM4644EY Quad 4A Output Step Down Module Regulator, LTM4644EY, Quad 4A Output Step Down Taolo ea Mojule, Taolo ea Mojule oa ho theoha, Taolo ea Mojule, Molaoli. |