Thandizani ndemanga ya BOM Yatsopano Yoyamba Yophatikizidwa Circuit LP8867QPWPRQ1
Makhalidwe a Zamalonda
| TYPE | DESCRIPTION | SANKHANI |
| Gulu | Magawo Ophatikizana (ICs) |
|
| Mfr | Texas Instruments |
|
| Mndandanda | Magalimoto, AEC-Q100 |
|
| Phukusi | Tape & Reel (TR) Dulani Tepi (CT) Digi-Reel® |
|
| Mkhalidwe wa Zamalonda | Yogwira |
|
| Mtundu | DC DC Regulator |
|
| Topology | SEPIC, Step-Up (Boost) |
|
| Masinthidwe Amkati | Inde |
|
| Chiwerengero cha Zotuluka | 3 |
|
| Voltage - Supply (Mphindi) | 4.5V |
|
| Voltage - Supply (Max) | 45v ndi |
|
| Voltage - Kutulutsa | 6V ~ 45V |
|
| Zamakono - Zotulutsa / Channel | 120mA |
|
| pafupipafupi | 300kHz ~ 2.2MHz |
|
| Kuthima | Zithunzi za PWM |
|
| Mapulogalamu | Magalimoto, Backlight |
|
| Kutentha kwa Ntchito | -40°C ~ 125°C (TA) |
|
| Mtundu Wokwera | Surface Mount |
|
| Phukusi / Mlandu | 20-PowerTSSOP (0.173", 4.40mm M'lifupi) |
|
| Phukusi la chipangizo cha Supplier | 20-HTSSOP |
|
| Nambala Yoyambira Yogulitsa | Chithunzi cha LP8867 | |
| SPQ | 2000PCS |
Zithunzi za LP8867-Q1
- AEC-Q100 Oyenerera kugwiritsa ntchito magalimoto:
- Kutentha kwa chipangizo giredi 1:
- -40°C mpaka +125°C, TA
- Chitetezo chogwira ntchito
- Zolemba zomwe zilipo kuti zithandizire kupanga dongosolo lachitetezo
- 3-, 4-Channel 120-mA masinki apano
- Kuwala kwakukulu kwa 10 000: 1 pa 100 Hz
- Zofananira 1% (zofanana)
- Chingwe cha LED chilipo mpaka 120 mA panjira
- Zotulutsa zimatha kuphatikizidwa kunja kuti zikhale zapamwamba pa chingwe
- Integrated boost ndi SEPIC converter ya LED chingwe mphamvu
- Kuyika kwamagetsi ogwiritsira ntchito 4.5 V mpaka 40 V
- Kutulutsa mphamvu mpaka 45 V
- Integrated 3.3-A Switch FET
- Kusintha pafupipafupi 300 kHz kupita ku 2.2 MHz
- Kusintha kolowera kalunzanitsidwe
- Kufalikira kwa sipekitiramu kwa EMI yotsika
- Kuzindikira zolakwika ndi chitetezo
- Kutulutsa kolakwika
- Kulowetsa magetsi OVP, UVLO ndi OCP
- Limbikitsani block SW OVP ndi kutulutsa kwa OVP
- Kuzindikira kwachidule kwa LED kotseguka komanso kwakanthawi kochepa
- Kuwongolera kwa Power-Line FET poteteza mabasi a batri
- Kuchepetsa kwamakono kwa LED ndi sensor yakunja ya kutentha
- Kutseka kwamafuta
Chithunzi cha LP8867-Q1
LP8867-Q1, LP8869-Q1 ndi magalimoto ophatikizika kwambiri, otsika EMI, osavuta kugwiritsa ntchito dalaivala wa LED wokhala ndi chosinthira cha DC-DC.Chosinthira cha DC-DC chimathandizira magwiridwe antchito a boost ndi SEPIC.Chipangizocho chili ndi masinki anayi kapena atatu olondola kwambiri omwe amatha kuphatikizidwa kuti akhale ndi luso lamakono.
Chosinthira cha DC-DC chimakhala ndi zowongolera zotulutsa magetsi kutengera ma voliyumu akutsogolo a LED.Izi zimachepetsa mphamvu yogwiritsira ntchito mphamvu mwa kusintha magetsi kuti akhale otsika kwambiri muzochitika zonse.Pakuti EMI kuchepetsa DC-DC amathandiza sipekitiramu kufalitsa kwa kusintha pafupipafupi ndi kalunzanitsidwe kunja ndi odzipereka pini.Mafupipafupi osinthika osinthika amalola LP886x-Q1 kupewa kusokonezeka kwa gulu lomvera pafupipafupi.
Ma voliyumu olowera a LP886x-Q1 amachokera ku 4.5 V mpaka 40 V kuti athandizire kuyimitsidwa kwamagalimoto ndikuyimitsa katundu.LP886x-Q1 imaphatikiza zinthu zambiri zowunikira zolakwika.
