Gulu laukadaulo la Slkor limachokera ku Tsinghua University. Kampaniyi ndi kampani yapamwamba kwambiri padziko lonse yomwe idapanga zida zamagetsi za silicon carbide koyambirira ndipo yakula kukhala kampani yophatikiza kafukufuku ndi chitukuko, kapangidwe, malonda, ndi ntchito zaukadaulo, ndi chikhalidwe chophatikiza, chotseguka, komanso chatsopano chamakampani.SLKORKampaniyo yadziwika padziko lonse lapansi komanso yatchuka, ndipo yapeza ISO9001, RoHS, REACH, California 65, ndi ziphaso zina.

 

Slkor ili ndi mabungwe ofufuza ndi chitukuko ku Beijing ndi Suzhou, ndipo likulu lake ku Shenzhen lili ndi labotale ndi nyumba yosungiramo zinthu zakale. Zinthu zazikuluzikulu zikuphatikizapo magulu atatu akuluakulu: ma diode ndi ma transistors, zipangizo zamagetsi, ndi ma chips oyendetsera magetsi. Zinthu zatsopano monga Hall sensors, ADCs, BMS, ma optocouplers othamanga kwambiri, ndi ma crystal oscillators zikuyambitsidwa pang'onopang'ono. Zinthuzi zimagwiritsidwa ntchito m'mafoni a m'manja, ma laputopu, maloboti, zida zamagetsi, telematics, zinthu za digito za 3C, AIoT, ndi mafakitale ena, mogwirizana ndi ogwirizana nawo padziko lonse lapansi oposa 10,000!

 

"Slkor Micro Chips Driven Future". Webusaiti yovomerezeka ya Slkor yamangidwa kukhala nsanja ya anzawo a semiconductor kuti aphunzire ndikugawana malingaliro, ndikupanga chilengedwe cha mafakitale mu intaneti kuti chithandizire ntchito ndi chitukuko cha kampaniyo. Masomphenya a kampaniyo ndi akuti patatha zaka 30 akugwira ntchito mosalekeza, ogwira nawo ntchito apanga Slkor "bizinesi yotsogola mumakampani a semiconductor"!

 

1.1 Dzina: Slkor DW03 Lithium Battery Protection Application Solution

1.2 Kugwiritsa Ntchito: Phukusi la batire la lithiamu-ion la selo imodzi; phukusi la batire la lithiamu polymer

 

2. Chip iyi imabwera mu phukusi la SOT23-5.

 

2.1 Zinthu Zogulitsa

Chogulitsa cha DW03 ndi njira yolumikizirana kwambiri yotetezera mabatire a lithiamu-ion/lithium polymer omwe amachajidwanso ndi selo imodzi. DW03 ili ndi MOSFET yamphamvu kwambiri, ma circuits ozindikira ma voltage olondola kwambiri, ndi ma circuits ochedwa.

 

DW03 imapereka ntchito zonse zofunika zotetezera batire monga kukweza mphamvu, kutulutsa mphamvu mopitirira muyeso, kukweza mphamvu, ndi kufupika kwa magetsi, ndi mphamvu zochepa kwambiri panthawi yogwira ntchito. Chip iyi si yongopangidwira mafoni am'manja okha komanso ndi yoyenera mitundu yonse ya zinthu zomwe zimafuna mabatire otha kubwezeretsanso lithiamu-ion kapena lithiamu polymer kuti apereke mphamvu kwa nthawi yayitali.

 

2.2

DW03 imayang'anira magetsi a batri ndi magetsi, ndipo imateteza batri ya lithiamu yotha kubwezeretsedwanso ya selo imodzi kuti isawonongeke chifukwa cha magetsi ochulukirapo, magetsi ochulukirapo, magetsi ochulukirapo, magetsi ochulukirapo, ndi magetsi afupi pochotsa chojambulira kapena katundu. Dongosololi lili ndi dera losavuta lakunja. MOSFET ili mkati, yokhala ndi kukana kofanana kwa 65mΩ.

 

3.1 Kuzindikira chojambulira; Ntchito yochaja batire ya 0V; nthawi yochedwetsa yokhazikika mkati; kuzindikira mphamvu yamagetsi yolondola kwambiri.

3.2 Mphamvu yotsika yoziziritsa: Mphamvu yogwira ntchito yanthawi zonse: 2.8uA; Mphamvu yoyimirira: 1.5uA; RoHS ndi yogwirizana ndi malamulo opanda lead.

 

4. Kugwiritsa Ntchito Chitetezo cha Batri ya Slkor DW03 Lithium mu Yankho la Electric Shaver:

 

Chithunzi 1

 

Chithunzi 2

 

Chithunzi 3

 

5. Mfundo Yogwiritsira Ntchito

 

Chitetezo cha batire ya lithiamu ya selo imodzi ya Slkor DW03. DW03 ili ndi MOSFET yamphamvu kwambiri, ma circuits ozindikira ma voltage molondola kwambiri, ndi ma circuits ochedwa, ndipo imagwiritsidwa ntchito kwambiri m'zida zazing'ono zapakhomo. Mu circuit yogwiritsira ntchito shaver yomwe yawonetsedwa pachithunzichi, USB Type-C imapereka mphamvu yochajira batire ya lithiamu ya selo imodzi. Pakuchajira, doko la ADC I/O la MCU limasonkhanitsa ma voltage ochajira ndikuwonetsa mulingo wa batire pa chubu cha digito. Dera lochajira limapangidwa ndi Slkor SL4056 charging management ndi ma circuits osavuta a peripheral. Mu gawo la motor drive, Slkor 3400 MOSFET imagwiritsidwa ntchito, ndipo doko la MCU I/O limasonkhanitsa ma key signals kuti liwongolere kuyatsa/kuzima kwa mota. DRV ndi chizindikiro cha gate drive. MCU ikazindikira kuti kiyi yakanikiza, DRV imatulutsa mulingo wapamwamba ndipo shaver imayamba kuzungulira.

 

5.1 Chithunzi 1 ndi dera lothandizira la MCU kuti lisonkhanitse batire ya lithiamu. Dziwani kuti DW03 imalumikizana ndi malo abwino a batire ya lithiamu kudzera mu resistor ya 100R, pin 2 ya chip imalumikizana ndi malo oipa a batire ya lithiamu, ndipo ma pin 4 ndi 5 amalumikizana ndi GND. Ogwiritsa ntchito amatha kutsatira zofunikira kuti apange ndikumanga mosavuta dera loteteza batire ya lithiamu-ion ya selo limodzi.

 

DW03 imateteza batire ya lithiamu yotha kubwezeretsedwanso ya selo imodzi ku kuwonongeka chifukwa cha mphamvu yowonjezera, mphamvu yowonjezera, mphamvu yowonjezera, mphamvu yowonjezera, ndi dera lalifupi. Ngati palibe zinthu zachilendo zomwe zapezeka, transistor yotulutsa imakhalabe yoyatsidwa, ndipo kuyatsa ndi kutulutsa kumatha kusinthana momasuka. Izi zimatchedwa njira yachizolowezi yogwirira ntchito. Pa nthawi yanthawi yotulutsa, pamene mphamvu ya batire imatsika pansi pa mphamvu yowonjezera (VDL) ndipo nthawiyo imafika kapena kupitirira nthawi yozindikira kuchedwa kwa mphamvu yowonjezera (TDL), DW03 imachotsa batire pa katundu ndikuyimitsa kutulutsa.

 

Izi zimatchedwa mkhalidwe wamagetsi otulutsa mphamvu zambiri. Munthawi yanthawi zonse yogwirira ntchito, pamene mphamvu yotulutsa mphamvu ili yofanana kapena yoposa mtengo woikika (voltage ya VM ndi yofanana kapena yoposa mphamvu yozindikira mphamvu zambiri) ndipo nthawiyo ikafika nthawi yozindikira mphamvu zambiri, DW03 imazimitsa FET yotulutsa mphamvu ndikuyimitsa kutulutsa mphamvu. Izi zimatchedwa mkhalidwe wamagetsi otulutsa mphamvu zambiri. Pa nthawi yanthawi zonse yochaja, ngati mphamvu ya VM yatsika pansi pa mphamvu yozindikira mphamvu (VCHA) ndipo nthawiyo yapitirira nthawi yozindikira mphamvu zambiri (TCU), DW03 imazimitsa mphamvu yamagetsi ya FET ndikuyimitsa kuchaja. Izi zimatchedwa kuzindikira mphamvu zosazolowereka, ndi zina zotero.

 

5.2 Mu Chithunzi 2, ma TVS ozungulira mbali zonse ziwiri oteteza ma surge ndi Slkor SMF5.0CA, okhala ndi VRWM voltage ya 5.0V komanso mphamvu yabwino kwambiri yolumikizira, okhala ndi mphamvu yayikulu yothamanga ya 200W pansi pa 10/1000 µs waveform. Q2 ndi Q4 zonse ndi ma Slkor MOSFET. MCU imalola kuti ma signali a Q2 ayatse Q4, ndipo Q4 ikayamba kugwira ntchito, Type-C imatulutsa VCC yamagetsi kuti ipatse mphamvu katunduyo.

 

5.3 Mu Chithunzi 3, D4 ndi D5 amagwira ntchito makamaka ngati batire ndi mtundu wa magetsi osinthira magetsi. Pamene chojambulira chatsegulidwa, batire ya lithiamu imapereka mphamvu. D4 ndi D5 ndi ma diode a Slkor 1N5819WT Schottky, okhala ndi mphamvu yobwerera m'mbuyo ya 1uA, mphamvu yamagetsi ya 40V, mphamvu yayikulu yopita patsogolo ya 1A, ndi kutsika kwamagetsi otsika kutsogolo, zomwe zimapangitsa kuti zikhale zoyenera kwambiri pakugwiritsa ntchito mphamvu yotsika monga ma MCU.

 

6. Chidziwitso cha tebulo la Slkor DW03 Lithium Battery Protection Application BOM ndi motere:

 

Slkor Semiconductor imapatsa makasitomala ndi ogulitsa zinthu zatsopano mosavuta pansi pa dzina la "Slkor", imalimbitsa chithandizo chaukadaulo kwa makasitomala, ndipo imapereka zambiri mwatsatanetsatane za malonda. Chonde funsani antchito athu kuti mudziwe zambiri.