LINEAR TECHNOLOGY LTM8042 Litaelo tsa Mokhanni oa Mokhanni oa LED
TLHALOSO
Li-circuits tsa lipontšo 1511A-A le 1511A-B li na le LTM®8042 le LTM8042-1, tseo ka tatellano e leng li-driver tsa 1A le 350mA µModule tsa LED tse felletseng. Li-circuits tsa lipontšo li bokelloa e le li-boost topology, tse amohelang phallo ea voltage ho tloha ho 3V ho ea ho 30V le ho tšehetsa tlhahiso e fihlang ho 32V (sheba Lethathamo la 1). Maqhubu a ho fetoha a kamehla ke 600kHz bakeng sa DC1511A-A le 950kHz bakeng sa DC1511A-B, empa a ka fetoloa ka ho fetola boleng ba RT. mode le buck mode (ho theoha). DC1511A e kenyelletsa a
DC1511A e hlophisitsoe habonolo ho ts'ehetsa likarolo tse ling, ho kenyeletsoa ho fifala ha PWM, dimming ea analog, buck-boost P-channel MOSFET e hlokahalang bakeng sa ho fifala ha PWM. RADJ Pin/terminal voltage laola tlhahiso ea hona joale. Moqtage e ka sebelisoa ka kotloloho ho theminale kapa e behiloe ke karohano e kenyelletsang mohanyetsi RADJ le referense ea ka hare ea 8042V ea LTM2 le sehanyetsi sa divider. Open LED over-voltage boetse e kenyelelitsoe tšireletso. Sheba database ea LTM8042/LTM8042-1 bakeng sa tlhaiso-leseling e batsi mabapi le mokhoa oa ho sebelisa kapa ho fetola potoloho hantle.
Moralo files bakeng sa boto ena ea potoloho li fumaneha ho http://www.linear.com/demo
L, LT, LTC, LTM, µModule, Linear Technology le logo ea Linear ke matšoao a ngolisitsoeng a Linear Technology Corporation. Matshwao a mang kaofela ke thepa ya beng ba ona.
KAKARETSO EA TŠEBELETSO Litlhaloso li ho TA = 25°C
| PARAMETER | LIEKETSENG/MELEMO | VALUE |
| Keletso Voltage Range, VIN (BSTIN) | 3V ho isa ho 30V (Sheba Lethathamo la 1) | |
| ILED | DC1511A-A (LTM8042) DC1511A-B (LTM8042-1)
Ho fokotseha ha Hona joale ho ka 'na ha hlokahala tlas'a maemo a itseng a VIN, VOUT, Frequency le Thermal Conditions. |
1A
350mA |
| Fetoha Frequency | RT = 30.1k (DC1511A-A) RT = 16.9k (DC1511A-B) | 600kHz 950kHz |
| Palo e kahodimodimo di neng di kwalwa Voltage (Open LED Voltage) | 36V | |
| Katleho | VIN = 12V, VLED = 16.7V, ILED = 1A
VIN = 12V, VLED = 24.8V, ILED = 350mA |
91.5% (Sheba setšoantšo sa 2)
89% (Sheba setšoantšo sa 3) |
LEBOTO LEPHOTO
TSELA E QALANG HO QALA
Pontšo ea potoloho ea 1511A e bonolo ho e hlophisa ho lekola ts'ebetso ea LTM8042EV/LTM8042EV-1. Sheba Setšoantšo sa 1 bakeng sa lisebelisoa tse nepahetseng tsa ho lekanya 'me u latele mokhoa o ka tlase bakeng sa topology ea boost (step-up).
- Hokela li-LED tse ngata ka matla a peletage 32V kapa ka tlase, empa e kholo ho feta bophahamo ba modumotage, ho liteishene tsa LED+ (LED anode) le GND (LED cathode) ho PCB, joalo ka ha ho bonts'itsoe ho Setšoantšo sa 1.
- Ha motlakase o tima, hokela phepelo ea motlakase ho litheminale tsa BSTIN/BKLED– le GND ka har'a mekha e boletsoeng ho Lethathamo la 1. Preset the DC input vol.tage ka hare ho tlhahiso e khothaletsoang ea voltage range bakeng sa phallo e nepahetseng ea molumotage ea khoele ea LED.
Lethathamo la 1. Lethathamo la Input bakeng sa Ts'ebetso e Nepahetseng (Sheba ho
Lethathamo la lintlha tsa LTM8042/LTM8042-1
| DC1511A-A LTM8042 | DC1511A-B LTM8042-1 | ||
| KEKETSO TLHOKOMELOTAGE (BSTIN/BKLED– HO GND) | LED STRING TLHOKOMELOTAGE (LED+ TSA GND) | KEKETSO TLHOKOMELOTAGE (BSTIN/BKLED– HO GND) | LED STRING TLHOKOMELOTAGE (LED+ TSA GND) |
| 5V ho isa ho 5.8V | 6V ho isa ho 9V | 3.2V ho isa ho 7V | 8V ho isa ho 12V |
| 6.4V ho isa ho 7.7V | 8V ho isa ho 12V | 4.1V ho isa ho 10V | 12V ho isa ho 16V |
| 8.6V ho isa ho 11.3V | 12V ho isa ho 16V | 4.8V ho isa ho 12.3V | 15V ho isa ho 21V |
| 11.3V ho isa ho 13.8V | 15V ho isa ho 21V | 5.8V ho isa ho 15V | 18V ho isa ho 24V |
| 13.4V ho isa ho 16.5V | 18V ho isa ho 24V | 8.5V ho isa ho 20.8V | 24V ho isa ho 32V |
| 20.5V ho isa ho 22.5V | 24V ho isa ho 32V | ||
3. Hokela terminal ea PWM. Haeba PWM e sa sebelisoe, hokela PWM mohloling oa 5V kapa ho phallo ea molumotage. PWM e tlameha ho huleloa holimo kapa li-LED li tla lula li tima.
4. Bulela phepelo ea motlakase e kenang.
5. Ela hloko khoele ea LED e mathang hona joale.
6. Bakeng sa ho fifala ha PWM, hokela PWM 100Hz kapa leqhubu la maqhubu a phahameng ho terminal ea PWM.
7. Ela hloko phokotso ea khanya thapong ea LED ka ho fetola potoloho ea mosebetsi oa lets'oao la PWM.
Ho sebelisa DC1511A ho topology ea buck-boost mode, etsa liphetoho tse latelang ts'ebetsong.
- Mohato oa 1, hokela cathode ea khoele ea LED ho BSTIN/BKLED- The LED forward vol.tage ka ba kholo ho feta bophahamo ba modumotage bakeng sa buck-boost mode.
- Mothating oa 2, sheba lethathamo la lisebelisoa tsa ts'ebeliso ea li-buck-boost tsa database. Preset the DC input voltage ka hare ho tlhahiso e khothaletsoang ea voltage range bakeng sa phallo e nepahetseng ea molumotage le hona joale ea LED
Ho sebelisa DC1511A ka mokhoa oa buck (step-down) topology, etsa liphetoho tse latelang ts'ebetsong.
- Tlosa jumper ea 0Ω sebakeng sa R8 ebe u kenya jumper sebakeng sena se khutsufatsa VCC, TGEN le RUN pin/terminals ho BSTOUT/BKIN sebakeng sa BSTIN/BKLED–.
- Mohato oa 1, hokela cathode ea khoele ea LED ho BSTIN/BKLED- The LED forward vol.tage tlameha ho ba ka tlase ho bophahamo ba modumotage bakeng sa mokhoa oa buck.
Mohato oa 2, hokela phepelo ea motlakase ho BSTOUT/ BKIN le GND. Sheba lethathamong la lintlha tsa tšebeliso ea li-buck mode. Preset the DC input voltage ka hare ho tlhahiso e khothaletsoang ea voltage range bakeng sa phallo e nepahetseng ea molumotage le hona joale ea khoele ea LED.
TSELA E QALANG HO QALA
Setšoantšo sa 1. Tlhophiso e Loketseng ea Thepa ea Tekanyo (Boost Topology)
Setšoantšo sa 2. DC1511A-A Effective vs VIN Boost Operation, 16.7V ho 1A LED String
Setšoantšo sa 3. DC1511A-B Katleho vs Ts'ebetso ea VIN Boost, 24.8V ho 350mA LED String
MOKHOA OA DEMO DC1511A
MAHLOMOLA LEROTHA
LTM8042EV
| ITEM | QTY | TŠEBELETSO | KAROLO TLHALOSO | MOHLAHLI/KAROLO YA KAROLO |
Likarolo tse Hlokehang tsa Potoloho
| 1 | 1 | C1 | Cap., X5R, 4.7µF, 50V, 20%, 1206 | Taiyo Yuden UMK316BJ475ML-T |
| 2 | 1 | C2 | Cap., X5R, 10µF, 50V, 20%, 1210 | Taiyo Yuden UMK325BJ106MM-T |
| 3 | 1 | C4 | Cap., X7R, 0.01µF, 25V, 10%, 0603 | Tlhaloso: AVX 06033C103KAT2A |
| 4 | 1 | RT | Res., Chip, 30.1k, 0.06W, 1%, 0603 | Tlhaloso: NIC NRC06F3012TRF |
| 5 | 1 | U1 | IC, Mokhanni oa LED, LGA (77), 15mm × 9mm × 4.32mm | Linear Technology Corporation LTM8042EV |
Likarolo tse ling tsa Potoloho ea Boto ea Demo
| 1 | 1 | C3 | Cap., X5R, 1µF, 50V, 20%, 1206 | Tlhaloso: TDK C3216X5R1H105M |
| 2 | 0 | C5 (OPT) | Khaolo, 1206 | |
| 3 | 0 | RADJ, R2, R3, R5, R7 (OPT) | Res., 0603 | |
| 4 | 1 | RSYNC | Res., Chip, 100k, 0.06W, 5%, 0603 | Tlhaloso: NIC NRC06J104TRF |
| 5 | 2 | R1, R6 | Res./Jumper, Chip, 0Ω, 1/16W, 1A, 0603 | Vishay CRCW06030000Z0EA |
| 6 | 0 | R4 (OPT) | Res., 1206 | |
| 7 | 1 | R8 | Res./Jumper, Chip, 0Ω, 1/4W, 1A, 1206 | Vishay CRCW12060000ZOEA |
| 8 | 1 | M1 | P-Channel MOSFET, 40V, SOT-23 | Vishay Si2319DS-T1-E3 #PBF |
Hardware, bakeng sa Boto ea Demo Feela
| 1 | 13 | E1, E2, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13 | Turret, Testpoint 0.094 ″ | Mill-Max 2501-2-00-80-00-00-07-0 |
LTM8042EV-1
| ITEM | QTY | TŠEBELETSO | KAROLO TLHALOSO | MOHLAHLI/KAROLO YA KAROLO |
Likarolo tse Hlokehang tsa Potoloho
| 1 | 1 | C1 | Cap., X5R, 2.2µF, 50V, 20%, 1206 | Taiyo Yuden UMK316BJ225MD-T |
| 2 | 1 | C2 | Cap., X5R, 10µF, 50V, 20%, 1210 | Taiyo Yuden UMK325BJ106MM-T |
| 3 | 1 | C4 | Cap., X7R, 0.01µF, 25V, 10%, 0603 | Tlhaloso: AVX 06033C103KAT2A |
| 4 | 1 | RT | Res., Chip, 16.9k, 0.06W, 1%, 0603 | Tlhaloso: Vishay CRCW060316K9FKEA |
| 5 | 1 | U1 | IC, Mokhanni oa LED, LGA (77), 15mm × 9mm × 4.32mm | Linear Technology Corporation LTM8042EV-1 |
Likarolo tse ling tsa Potoloho ea Boto ea Demo
| 1 | 1 | C3 | Cap., X5R, 1µF, 50V, 20%, 1206 | Tlhaloso: TDK C3216X5R1H105M |
| 2 | 0 | C5 (OPT) | Khaolo, 1206 | |
| 3 | 0 | RADJ, R2, R3, R5, R7 (OPT) | Res., 0603 | |
| 4 | 1 | RSYNC | Res., Chip, 100k, 0.06W, 5%, 0603 | Tlhaloso: NIC NRC06J104TRF |
| 5 | 2 | R1, R6 | Res./Jumper, Chip, 0Ω, 1/16W, 1A, 0603 | Vishay CRCW06030000Z0EA |
| 6 | 0 | R4 (OPT) | Res., 1206 | |
| 7 | 0 | R8 | Res./Jumper, Chip, 0Ω, 1/4W, 1A, 1206 | Vishay CRCW12060000ZOEA |
| 8 | 1 | M1 | P-Channel MOSFET, 40V, SOT-23 | Vishay Si2319DS-T1-E3 #PBF |
Hardware, bakeng sa Boto ea Demo Feela
| 1 | 13 | E1, E2, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13 | Turret, Testpoint, 0.094 ″ | Mill-Max 2501-2-00-80-00-00-07-0 |
SETSEKI SEKEMO
Lintlha tse fanoeng ke Linear Technology Corporation ho lumeloa hore li nepahetse ebile lia tšepahala. Leha ho le joalo, ha ho boikarabelo bo nkoang bakeng sa tšebeliso ea eona. Linear Technology Corporation ha e fane ka tlhahiso ea hore khokahano ea li-circuits tsa eona joalo ka ha e hlalositsoe mona e ke ke ea hatakela litokelo tse teng tsa patent.
LEBOTO LA POTSO TSEBISO
Linear Technology Corporation (LTC) e fana ka lihlahisoa tse kentsoeng tlas'a tse latelang JOALOKAHA maemo:
Setsi sena sa boto ea lipontšo (DEMO BOARD) se rekisoang kapa se fanoang ke Linear Technology se reretsoe ho sebelisoa TS'OETSOE KAPA TS'ELISO MORERO FEELA 'me ha e fanoe ke LTC bakeng sa tšebeliso ea khoebo. Ka hona, DEMO BOARD e ka 'na ea se ke ea phethahala ho latela moralo o hlokoang, oa ho bapatsa, le/kapa oa ts'ireletso o amanang le tlhahiso, ho kenyeletsoa empa ho sa lekanyetsoe mehato ea polokeho ea sehlahisoa eo hangata e fumanoang thepa e felileng ea khoebo. Joalo ka mohlala, sehlahisoa sena ha se oele ka har'a taelo ea European Union mabapi le khokahano ea motlakase, ka hona se ka fihlela kapa se se ke sa fihlela litlhoko tsa tekheniki tsa taelo, kapa melaoana e meng.
Haeba sesebelisoa sena sa tlhahlobo se sa fihlelle litemoso tse boletsoeng ho bukana ea DEMO BOARD, thepa e ka khutlisoa nakong ea matsatsi a 30 ho tloha ka letsatsi la thomello bakeng sa puseletso e felletseng. TIISETSO E FETILENG FELA KE TIISETSO E KHETHEHILENG E ETSOANG KE MOREKI HO MOREKI MAMETLETO TSA LITIISETSO TSE LING TSOHLE, TSE HLAHANG, TSE BONANG, KAPA MOLAO, HO kenyeletsoa TIISETSO EFE KAPA EFE EA THEKISO KAPA HO LOKELA MOSEBETSI OA MANG KAPA MANG. KA NTLE HO BOKGONG TSA TLOTLISO ENA, HA HO MOKHATLO OO O TLA IKARABELLA O MONG MABANG LE LITšenyo life kapa life tse sa tobang, tse KHETHEHILENG, TSA DITIRO, KAPA TSE LATELANG.
Mosebedisi o nka boikarabelo bohle le boikarabelo ba ho tshwara thepa ka tsela e nepahetseng le e bolokehileng. Ho feta moo, mosebelisi o lokolla LTC litletlebong tsohle tse hlahisoang ke ho sebetsana kapa ho sebelisoa ha thepa. Ka lebaka la kaho e bulehileng ea sehlahisoa, ke boikarabello ba mosebelisi ho nka mehato efe kapa efe e nepahetseng mabapi le ho tsoa ha electrostatic. Hape hlokomela hore lihlahisoa tse mona li kanna tsa se be tumellanong le melao kapa setifikeiti sa setsi (FCC, UL, CE, joalo-joalo).
Ha ho Laesense e fanoang tlas'a tokelo efe kapa efe ea patent kapa thepa e 'ngoe ea mahlale. LTC ha e nke e le molato bakeng sa thuso ea likopo, moralo oa sehlahisoa sa moreki, ts'ebetso ea software, kapa tlolo ea molao ea litokelo tsa molao kapa litokelo tse ling tsa thepa ea mahlale tsa mofuta ofe kapa ofe.
LTC hajoale e fana ka litšebeletso tse fapaneng tsa bareki bakeng sa lihlahisoa ho pota lefatše, ka hona ts'ebetso ena ha e khethehe.
Ka kopo bala bukana ea DEMO BOARD pele u sebetsana le sehlahisoa. Batho ba sebetsanang le sehlahisoa sena ba tlameha ho ba le koetliso ea elektronike le ho boloka litekanyetso tse ntle tsa laboratori. Ho sebelisa kelello hoa khothaletsoa.
Tsebiso ena e na le tlhaiso-leseling ea bohlokoa ea polokeho mabapi le mocheso le voltages. Bakeng sa mathata a mang a polokeho, ka kopo ikopanye le moenjiniere oa lisebelisoa oa LTC.
Aterese ea poso:
Linear Technology 1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
Bala haholoanyane ka Bukana ena & Khoasolla PDF:
Litokomane / Lisebelisoa
 |
LINEAR TECHNOLOGY LTM8042 LED Driver Module [pdf] Litaelo LTM8042, LTM8042-1, LTM8042 LED Driver Module, LTM8042, LED Driver Module |
