LINEAR TECHNOLOGY LTM8042 LED Avetaavale Module Faatonuga
FAAMATALAGA
Fa'ata'ita'iga ta'amilosaga 1511A-A ma le 1511A-B o lo'o fa'aalia ai le LTM®8042 ma le LTM8042-1, lea e fa'auma uma ta'avale LED 1A ma le 350mA µModule. O fa'ata'ita'iga ta'amilosaga o lo'o fa'apipi'iina e fai ma fa'aolaola fa'aola, talia se voli fa'aulutage mai le 3V i le 30V ma le lagolagoina o se gaosiga e oo atu i le 32V (silasila i le Laulau 1). Ole taimi ole fesuia'iga ole 600kHz mo DC1511A-A ma le 950kHz mo DC1511A-B, ae mafai ona fetuunai e ala i le suia o le tau ole RT. faiga ma le faiga tupe (step-down). DC1511A e aofia ai a
DC1511A e faigofie ona faʻapipiʻiina e lagolago ai isi vaega, e aofia ai le PWM dimming, analog dimming, buck-boost P-channel MOSFET e manaʻomia mo le PWM dimming. O le RADJ pine/terminal voltage pulea le gaosiga o lo'o i ai nei. Voltage fa'aoga sa'o i le laina po'o le setiina e se vaeluaga e aofia ai le tetee RADJ ma le LTM8042 i totonu 2V fa'asinomaga ma le divider resistor. Tatala LED ova voltage aofia ai foi le puipuiga. Fa'afeso'ota'i le fa'amaumauga LTM8042/ LTM8042-1 mo nisi fa'amatalaga ile fa'aoga tatau pe fa'alelei le matagaluega.
Fuafuaga files mo lenei laupapa matagaluega o loo maua i http://www.linear.com/demo
L, LT, LTC, LTM, µModule, Linear Technology ma le Linear logo o fa'ailoga fa'amaufa'ailoga a le Linear Technology Corporation. O isi fa'ailoga tau fefa'ataua'iga uma o meatotino a latou tagata e ona.
AOTELEGA O GALUEGA O fa'amatalaga o lo'o i le TA = 25°C
| PARAMETER | TUUIGA/FAATUATUA | TULAGA |
| Sao Voltage Va'aiga, VIN (BSTIN) | 3V i le 30V (Silasila i le Laulau 1) | |
| ILED | DC1511A-A (LTM8042) DC1511A-B (LTM8042-1)
Ole Fa'agata ole taimi e ono mana'omia i lalo ole VIN, VOUT, Fa'atele ma Tulaga vevela |
1A
350mA |
| Suiga Auala | RT = 30.1k (DC1511A-A) RT = 16.9k (DC1511A-B) | 600kHz 950kHz |
| Avanoa Maualuga Voltage (Tatala LED Voltage) | 36V | |
| Lelei | VIN = 12V, VLED = 16.7V, ILED = 1A
VIN = 12V, VLED = 24.8V, ILED = 350mA |
91.5% (Silasila i le Ata 2)
89% (Silasila i le Ata 3) |
ATA PAPA
Vave Amata Taualumaga
Faʻaaliga faʻataʻitaʻiga 1511A e faigofie ona faʻatulagaina e iloilo ai le faʻatinoga o le LTM8042EV/LTM8042EV-1. Va'ai i le Ata 1 mo le fa'atulagaina o meafaigaluega e fua ai ma mulimuli i le fa'agasologa o lo'o i lalo mo le fa'aleleia (step-up) topology.
- Faʻafesoʻotaʻi se manoa o LED ma vol i lumatage 32V pe itiiti, ae sili atu nai lo le voltage, i le LED + (LED anode) ma le GND (LED cathode) pito i luga o le PCB, e pei ona faaalia i le Ata 1.
- Pe a tape le paoa, fa'afeso'ota'i le sapalai o le paoa fa'aulu i le BSTIN/BKLED- ma le GND fa'amau i totonu o laina fa'amaoti i le Laulau 1. Fa'atonu le DC input voltagu i totonu o le voltagu laina mo le talafeagai agai i luma voltage o le manoa LED.
Fuafuaga 1. Tulaga Fa'aofi mo Fa'agaioiga Lelei (Silasila i le
LTM8042/LTM8042-1 Pepa Fa'amaumauga)
| DC1511A-A LTM8042 | DC1511A-B LTM8042-1 | ||
| INPUT VOLTAGE (BSTIN/BKLED– TO GND) | LED STRING VOLTAGE (LED+ IA GND) | INPUT VOLTAGE (BSTIN/BKLED– TO GND) | LED STRING VOLTAGE (LED+ IA GND) |
| 5V i le 5.8V | 6V i le 9V | 3.2V i le 7V | 8V i le 12V |
| 6.4V i le 7.7V | 8V i le 12V | 4.1V i le 10V | 12V i le 16V |
| 8.6V i le 11.3V | 12V i le 16V | 4.8V i le 12.3V | 15V i le 21V |
| 11.3V i le 13.8V | 15V i le 21V | 5.8V i le 15V | 18V i le 24V |
| 13.4V i le 16.5V | 18V i le 24V | 8.5V i le 20.8V | 24V i le 32V |
| 20.5V i le 22.5V | 24V i le 32V | ||
3. Faʻafesoʻotaʻi le laina PWM. Afai e le'o fa'aogaina le PWM, fa'afeso'ota'i le PWM i se puna 5V po'o le voltagu. O le PWM e tatau ona toso maualuga pe o le a tumau pea le LED.
4. Fa'aola le sapalai eletise ulufale.
5. Mata'ituina le manoa o le LED o lo'o fa'agaoioia i le fa'atonuina o le LED.
6. Mo le PWM fa'apouliuli, fa'afeso'ota'i le PWM 100Hz po'o le maualuga ole fa'ailoga fa'alava ile laina ole PWM.
7. Mataʻituina le faʻaitiitia o le susulu i le manoa LED e ala i le fesuiaʻiina o le taamilosaga tiute o le faailo PWM.
Mo le fa'aogaina o le DC1511A i se fa'aoga fa'a-buck-boost mode, fai suiga nei i le fa'agasologa.
- I le laasaga 1, faʻafesoʻotaʻi le cathode o le manoa LED i le BSTIN / BKLED- Le LED agai i luma voltage atonu e sili atu nai lo le voltage mo le faiga fa'aopoopo.
- I le Laasaga 2, va'ai ile laulau fa'amatalaga talosaga mo fa'amatalaga buck-boost mode. Fa'atulaga le DC input voltagu i totonu o le voltagu laina mo le talafeagai agai i luma voltage ma le taimi nei o le LED
Mo le fa'aogaina o le DC1511A i se fa'asologa o mea (step-down) topology, fai suiga nei i le fa'agasologa.
- Ave'ese le osooso 0Ω i le nofoaga R8 ae fa'apipi'i le osooso i le nofoaga E fa'apuupuu le VCC, TGEN ma RUN pine/terminal ile BSTOUT/BKIN nai lo le BSTIN/BKLED–.
- I le laasaga 1, faʻafesoʻotaʻi le cathode o le manoa LED i le BSTIN / BKLED- Le LED agai i luma voltage tatau ona itiiti ifo nai lo le voltage mo le faiga tupe.
I le Laasaga 2, fa'afeso'ota'i le sapalai eletise fa'aulu ile BSTOUT/ BKIN ma le GND. Va'ai ile laulau fa'amatalaga talosaga mo le fa'asologa o fa'amaumauga. Fa'atulaga le DC input voltagu i totonu o le voltagu laina mo le talafeagai agai i luma voltage ma le taimi nei o le manoa LED.
Vave Amata Taualumaga
Fa'ata 1. Fa'atonu Mea Fa'atatauga Sa'o (Boost Topology)
Ata 2. DC1511A-A Lelei vs VIN Boost Operation, 16.7V i le 1A LED String
Ata 3. DC1511A-B Lelei vs VIN Boost Operation, 24.8V i le 350mA LED String
TOTOGI LELEI DC1511A
VAEGA VAEGA
LTM8042EV
| MEA | QTY | TUSI | VAEGA FAAMATALAGA | FAITAU / VAEGA NUMERA |
Vaega Fa'aliko Manaomia
| 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 | AVX 06033C103KAT2A |
| 4 | 1 | RT | Res., Chip, 30.1k, 0.06W, 1%, 0603 | NIC NRC06F3012TRF |
| 5 | 1 | U1 | IC, Avetaavale LED, LGA (77),15mm × 9mm × 4.32mm | Linear Technology Corporation LTM8042EV |
Vaega Fa'aopoopo a le Komiti Fa'atino Fa'aaliga
| 1 | 1 | C3 | Cap., X5R, 1µF, 50V, 20%, 1206 | TDK C3216X5R1H105M |
| 2 | 0 | C5 (OPT) | Cap., 1206 | |
| 3 | 0 | RADJ, R2, R3, R5, R7 (OPT) | Res., 0603 | |
| 4 | 1 | RSYNC | Res., Chip, 100k, 0.06W, 5%, 0603 | NIC NRC06J104TRF |
| 5 | 2 | R1, R6 | Res./Susu, Chip, 0Ω, 1/16W, 1A, 0603 | Vishay CRCW06030000Z0EA |
| 6 | 0 | R4 (OPT) | Res., 1206 | |
| 7 | 1 | R8 | Res./Susu, Chip, 0Ω, 1/4W, 1A, 1206 | Vishay CRCW12060000ZOEA |
| 8 | 1 | M1 | P-Ala MOSFET, 40V, SOT-23 | Vishay Si2319DS-T1-E3 #PBF |
Meafaigaluega, mo Na'o le Komiti Fa'aaliga
| 1 | 13 | E1, E2, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13 | Turret, Su'ega 0.094″ | Mill-Max 2501-2-00-80-00-00-07-0 |
LTM8042EV-1
| MEA | QTY | TUSI | VAEGA FAAMATALAGA | FAITAU / VAEGA NUMERA |
Vaega Fa'aliko Manaomia
| 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 | AVX 06033C103KAT2A |
| 4 | 1 | RT | Res., Chip, 16.9k, 0.06W, 1%, 0603 | Vishay CRCW060316K9FKEA |
| 5 | 1 | U1 | IC, Avetaavale LED, LGA (77),15mm × 9mm × 4.32mm | Linear Technology Corporation LTM8042EV-1 |
Vaega Fa'aopoopo a le Komiti Fa'atino Fa'aaliga
| 1 | 1 | C3 | Cap., X5R, 1µF, 50V, 20%, 1206 | TDK C3216X5R1H105M |
| 2 | 0 | C5 (OPT) | Cap., 1206 | |
| 3 | 0 | RADJ, R2, R3, R5, R7 (OPT) | Res., 0603 | |
| 4 | 1 | RSYNC | Res., Chip, 100k, 0.06W, 5%, 0603 | NIC NRC06J104TRF |
| 5 | 2 | R1, R6 | Res./Susu, Chip, 0Ω, 1/16W, 1A, 0603 | Vishay CRCW06030000Z0EA |
| 6 | 0 | R4 (OPT) | Res., 1206 | |
| 7 | 0 | R8 | Res./Susu, Chip, 0Ω, 1/4W, 1A, 1206 | Vishay CRCW12060000ZOEA |
| 8 | 1 | M1 | P-Ala MOSFET, 40V, SOT-23 | Vishay Si2319DS-T1-E3 #PBF |
Meafaigaluega, mo Na'o le Komiti Fa'aaliga
| 1 | 13 | E1, E2, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13 | Turret, Su'ega, 0.094″ | Mill-Max 2501-2-00-80-00-00-07-0 |
FAʻAMATALAGA AOTELEGA
O fa'amatalaga tu'uina mai e le Linear Technology Corporation e talitonuina e sa'o ma fa'atuatuaina. Ae ui i lea, e leai se matafaioi e faʻaaogaina mo lona faʻaaogaina. Linear Technology Corporation e leai se fa'aaliga e fa'apea o le feso'ota'iga o ana matagaluega e pei ona fa'amatalaina i totonu o le a le solia ai aia tatau pateni o iai.
FA'AALIGA FA'AALIGA FA'AALIGA TAUA
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LINEAR TECHNOLOGY LTM8042 LED Avetaavale Module [pdf] Faatonuga LTM8042, LTM8042-1, LTM8042 LED Avetaavale Module, LTM8042, LED Avetaavale Module |
