RANGARANGA LINEAR DC2110A Synchronous Micropower Step Down Regulator
WHAKAMAHI
Ko te ara iahiko Whakaaturanga 2110A he kaitahuri hikoi-iho monolithic e whakaatu ana i te LT®8631. Kua hoahoatia te poari demo mo te putanga 5V mai i te 6.5V ki te 100V whakauru i te 400kHz te auau whakawhiti. Ko te awhe whakaurunga whanui e tika ana mo te whakahaere hiko mai i nga momo puna maha, tae atu ki nga miihini, nga punaha ahumahi me nga taputapu waea. Ko te LT8631 he kaitito, he tino pai te tukutahi monolithic takahanga-iho kaiwhakahaere whakawhiti. Ko te whakawhiti hiko, utu me etahi atu ara iahiko e tika ana kei roto i te LT8631 hei whakaiti i nga waahanga o waho me te ngawari o te hoahoa. Ko te LT8631 auau whakawhiti ka taea te whakarite ma te oscillator parenga, karaka o waho ranei i runga i te awhe 100kHz ki te 1MHz. Ko te titi SYNC i runga i te papa demo kua tau ki te whenua (JP1 i te waahi Burst Mode®) ma te taunoa mo te mahi iti ripple Burst Mode. Hei tukutahi ki te karaka o waho, nukuhia a JP1 ki te SYNC ka tono i te karaka o waho ki te taumarumaru SYNC. Mena e hiahiatia ana te mahi pekepeke, nukuhia a JP1 ki te waahi auau. Ko te ahua 1 e whakaatu ana i te kaha o te ara iahiko i te whakaurunga 12V i te kowhiringa Aratau Burst. Kua whakauruhia he tātari EMI i te poari demo. Ko te ahua o te EMI o te poari (me te tātari EMI) e whakaatuhia ana i te Whakaahua 2. Ko te raina whero i te Whakaahua 2 ko te CISPR25 Class 5 te rohe teitei. E whakaatu ana te ahua ka puta te ara iahiko i te whakamatautau me te whanui whanui. Ki te whakatutuki i nga mahi EMI/EMC e whakaatuhia ana
e hiahiatia ana te tātari EMI tāuru me te vol tāurutagme tono e ki te titi taumarumaru VEMI, kaua ki te VIN. Ko te pepa raraunga LT8631 he whakamaarama katoa mo te waahanga, te mahi me nga korero tono. Me panui te pepa raraunga i te taha o tenei pukapuka demo mo te ara iahiko demo 2110A. Ko te LT8631 ka whakaemihia ki roto i nga kohinga TSSOP 20-arahi. He mea tino nui te whakatakotoranga o te papa mo te mahi wera me te hiko. Tirohia nga waahanga pepa raraunga mo nga taipitopito. Hoahoa files mo tenei poari ara iahiko e wātea ana i http://www.linear.com/demo/DC2110A
L, LT, LTC, LTM, Hangarau Raina, Aratau Burst me te tohu Raina he tohu tohu rehita na Linear Technology Corporation. Ko etahi atu tohu hokohoko katoa na o ratou ake rangatira.
WHAKARApopototanga o nga mahi
| HE TOHUTOHU | PARAMETER | NGA TIKANGA | MIN TYP MAX | NGA WAIATA |
| VIN | Awhe Whakarato Whakauru | 6.5 100 | V | |
| WOUT | Putanga Voltage | 4.88 5.04 5.2 | V | |
| fSW | Whakawhiti Auautanga | RT = 25.5kΩ | 370 400 430 | kHz |
| IOUT | Te Putanga Tika Ake | VIN = 12V | 1 | A |
| EFE | Te kaha ki te DC | VIN = 12V, IOUT = 1A | 82.6 | % |
| VIN = 12V, IOUT = 0.4A | 89.5 | % |
NGICK TIKANGATANGA KAUPAPA KAUPAPA
He ngawari te whakarite iahiko whakaaturanga 2110A hei arotake-kai i te mahinga o te LT8631. Tirohia te Whakaahua 3 mo te tatūnga taputapu ine tika ka whai i nga tikanga i raro nei:
FAKATOKANGA. I te ine i te urunga, te whakaputa voltage ripple, me tupato ki te karo i te mata whenua roa i runga i te rangahau oscilloscope. Inehia te whakaurunga, te whakaputanga voltage ripple ma te pa atu ki te pito tirotiro puta noa i te VIN, VOUT me te GND ranei. Tirohia te Whakaahua 4 mo te tikanga whanui tika.
- Whakanohoia a JP1 ki te tuunga GND.
- Ka mutu te hiko, honoa te hiko whakauru ki te VEMI me te GND. Mena karekau he mea nui te mahi EMI/EMC, ka taea te whakakore i te tātari EMI whakauru ma te hono i te hiko whakauru ki te VIN me te GND.
- Ka mutu te hiko, honoa nga uta mai i VOUT ki te GND.
- Whakakāhia te hiko i te whakauru.
Me mohio kei te uru te voltage kore e neke ake i te 100V. - Tirohia mo te putanga tika voltages (VOUT = 5V). FAKATOKANGA. Mena karekau he putanga, momotuhia te utaina mo te wa poto kia kore ai te utaina e tino teitei, ka poto ranei.
- Kia te putanga tika voltage kua whakaritea, whakatikahia te kawenga i roto i nga awhe mahi me te mataki i te vol putangatage ture, ripple voltage, kakama me etahi atu tawhā.
- Ka taea te taapiri i te karaka o waho ki te tauranga SYNC ina whakamahia ana te mahi SYNC (JP1 i te tuunga SYNC). Tena koa kia tautuhia e te RT kua tohua te auau whakawhiti LT8631 ki te 10% i raro iho i te auau SYNC iti rawa. Tirohia te waahanga Tukutahi rau raraunga mo nga taipitopito.
RANGI KAUPAPA
| 1 | 1 | C1 | KAUPAPA, 0.1µF, X7R, 10V, 10% 0402 | TDK, C1005X7R1A104K |
| 2 | 1 | C5 | KAUPAPA, 2.2µF, X5R, 10V, 10% 0402 | TDK, C1005X5R1A225K050BC |
| 3 | 1 | C6 | KAUPAPA, 4.7pF, C0G, 50V, 0.25pF 0603 | MURATA, GRM1885C1H4R7CA01D |
| 4 | 1 | C7 | KAUPAPA, 47µF, X7R, 10V, 20% 1210 | MURATA, GRM32ER71A476KE15L |
| 5 | 1 | C8 | KAUPAPA, 0.1µF, X7R, 10V, 10% 0603 | AVX, 0603ZC104KAT2A |
| 6 | 1 | C4 | KAUPAPA, 1µF, X7R, 10V, 10% 0603 | SAMSUNG, CL10B105KP8NNNC |
| 7 | 1 | L1 | INDUCTOR, 22µH IHLP2525 | VISHAY, IHLP2525CZER220M11 |
| 8 | 1 | L2 | KAUPAPA, 2.2µH | COILCRAFT, XFL4020-222MEB |
| 9 | 1 | R1 | RES, 51.1k, 1/10W, 1% 0603 | VISHAY, CRCW060351K1FKEA |
| 10 | 2 | R2, R4 | RES, 1M, 1/10W, 1% 0603 | VISHAY, CRCW06031M00FKEA |
| 11 | 1 | R3 | RES, 25.5k, 1/10W, 1% 0603 | VISHAY, CRCW060325K5FKEA |
| 12 | 1 | R5 | RES, CHIP, 191k, 1/10W, 1% 0603 | VISHAY, CRCW0603191KFKEA |
| 13 | 1 | U1 | IC, BUCK REG FE-20(16) CB | RANGARANGA LINEAR, LT8631EFE#PBF |
Ko etahi atu waahanga o te Poari Poari Whakaatu
| 1 | 1 | C2 | PAPA, ALUM, 10µF, 100V | RA ELECTRONIC, 100CE10BS |
| 2 | 0 | C11 (OPT) | KAUPAPA, 0603 | |
| 3 | 0 | D1 (OPT) | SCHOTTKY BARRIER REC, POWER-DI-123 |
Pūmārō: Mo te Poari Whakaatu Anake
| 1 | 10 | E1 KI E10 | POINT WHAKAMATAU, TURET, 0.094″ MTG.HOLE | MILL-MAX, 2501-2-00-80-00-00-07-0 |
| 2 | 1 | JP1 | 4 PIN 0.079 PANUNGA ROW ONE | SULLIN, NRPN041PAEN-RC |
| 3 | 1 | XJP1 | SHUNT, 0.079″ PUKAPUKA | SAMTEC, 2SN-BK-G |
| 4 | 0 | R6 (OPT) | RES, 0603 | |
| 5 | 4 | MH1 KI MH4 | Tu-tu, Nirona 0.50″ | KOHATU KAMA, 8833 (KIA KIA) |
WHAKAMAHI KAUPAPA
HE WHAKAMAHI WHAKAMAHI KI TE PAPA WHAKATAKI
Ko Linear Technology Corporation (LTC) e whakarato ana i nga hua kua kati i raro i nga tikanga AS IS e whai ake nei:
Ko tenei kete whakaaturanga (DEMO BOARD) e hokona ana e te Hangarau Raina, e mahia ana mo te WHAKAMAHI WHAKAMAHI KI TE WHAKAMAHI I TE WHAKAMAHI ANAKE, karekau i tukuna e te LTC mo te whakamahi arumoni. No reira, ko te DEMO BOARD kei konei kare pea e oti i runga i nga whakaaro mo te hoahoa, hokohoko, me/ranei e pa ana ki nga mahi whakamarumaru, tae atu ki nga tikanga haumaru hua ka kitea i roto i nga taonga arumoni kua oti. Hei tauira, kaore tenei hua e taka ki roto i te waahanga o te tohutohu a te Kotahitanga o Europi mo te hototahi hiko, na reira ka tutuki, kaore ranei e tutuki nga whakaritenga hangarau o te tohutohu, etahi atu ture ranei.
Mena karekau tenei kete arotake e tutuki ki nga korero kua whakahuahia i roto i te pukapuka DEMO BOARD ka whakahokia mai pea te kete i roto i nga ra 30 mai i te ra o te tukunga mo te utu katoa.
KO TE PUTANGA O MUA KO TE WHAKAPUTANGA TANGATA I HANGA E TE KAIHOKI KI TE KAIHOKO, HEI TANGATA KATOA ATU ATU, HE WHAKAMAHI, HE WHAKAMAHI, HE KAUPAPA KAUPAPA, HE WHAKAMAHI I TE WHAKAMAHI I TE WHAKAMAHI I TE WHAKAMAHI KI TE WHAKAMAHI I TE WHAKAMAHI I TE WHAKAMAHI I TE WHAKAMAHI. AHAKOA KI TE WHARE O TENEI KAUPAPA KAUPAPA KAUPAPA KAUPAPA KAUPAPA KAUPAPA KAUPAPA KI TE ATU KI TE ATU KI TE TANGATA MO NGA MAHI TANGATA, MO TE WHAKAMAHI, KAUPAPA, KAUPAPA, KAUPAPA KAUPAPA.
Ko te kaiwhakamahi te kawenga me te kawenga mo te whakahaere tika me te haumaru o nga taonga.
I tua atu, ka tukuna e te kaiwhakamahi te LTC mai i nga kerēme katoa i puta mai i te whakahaere, te whakamahi ranei i nga taonga. Na te tuwhera o te hanga o te hua, ko te kawenga a te kaiwhakamahi ki te tango i nga mea katoa e tika ana mo te tuku hiko. Me mohio ano ko nga hua kei konei kaore pea i te ture ture, kua whakamanahia ranei e te umanga (FCC, UL, CE, me etahi atu). Karekau he Raihana e tukuna i raro i tetahi mana patent, etahi atu taonga hinengaro ranei. Karekau he taunaha a LTC mo te awhina tono, hoahoa hua a te kaihoko, mahi rorohiko, takahi ranei i nga patent, i etahi atu mana taonga hinengaro o tetahi momo.
I tenei wa ka tukuna e LTC nga momo kaihoko mo nga hua huri noa i te ao, na reira ehara i te mea motuhake tenei tauwhitinga. Tena panuihia te pukapuka DEMO BOARD i mua i te whakahaere i te hua. Ko nga tangata e whakahaere ana i tenei hua me whai whakangungu hikohiko me te whai i nga paerewa mahi taiwhanga pai. Ka akiakihia te whakaaro mohio. Kei roto i tenei panui nga korero haumaru nui mo te mahana me te voltages. Mo etahi atu awangawanga haumaru, whakapaa atu ki tetahi miihini tono LTC.
Wāhitau Mēra
Hangarau Raina 1630 McCarthy Blvd. Milpitas, CA 95035 Mana pupuri © 2004, Linear Technology Corporation
Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417
Tuhinga / Rauemi
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