Integrated Circuit Electronics Supplier Watsopano komanso Woyambirira mu Stock Bom Service TPS22965TDSGRQ1
Makhalidwe a Zamalonda
| TYPE | DESCRIPTION |
| Gulu | Magawo Ophatikizana (ICs) |
| Mfr | Texas Instruments |
| Mndandanda | Magalimoto, AEC-Q100 |
| Phukusi | Tape & Reel (TR) Dulani Tepi (CT) Digi-Reel® |
| SPQ | 3000 T&R |
| Mkhalidwe wa Zamalonda | Yogwira |
| Sinthani Mtundu | General Cholinga |
| Chiwerengero cha Zotuluka | 1 |
| Chiyerekezo - Zolowetsa:Zotuluka | 1:1 |
| Kukonzekera kwa Zotulutsa | Mbali Yapamwamba |
| Mtundu Wotulutsa | N-Channel |
| Chiyankhulo | Yatsani/Kuzimitsa |
| Voltage - Katundu | 2.5V ~ 5.5V |
| Voltage - Supply (Vcc/Vdd) | 0.8V ~ 5.5V |
| Zapano - Zotulutsa (Zambiri) | 4A |
| Rds On (Typ) | 16 mkhm |
| Mtundu Wolowetsa | Osasintha |
| Mawonekedwe | Kutulutsa Katundu, Kuwotcha Kuwongoleredwa |
| Chitetezo cha Mphamvu | - |
| Kutentha kwa Ntchito | -40°C ~ 105°C (TA) |
| Mtundu Wokwera | Surface Mount |
| Phukusi la chipangizo cha Supplier | 8-WSON (2x2) |
| Phukusi / Mlandu | 8-WFDFN Yowonekera Pad |
| Nambala Yoyambira Yogulitsa | Chithunzi cha TPS22965 |
Zosintha zonyamula katundu zimapulumutsa malo, zophatikizika zamagetsi.Ma switch awa atha kugwiritsidwa ntchito 'kudula' ma subsystems omwe ali ndi njala yamagetsi (akakhala mu standby) kapena kuwongolera potengera katundu kuti athandizire kusanja mphamvu.Kusintha kwa katundu kunapangidwa pamene mafoni a m'manja adatchuka;popeza mafoni amawonjezera magwiridwe antchito, amafunikira ma board ozungulira okwera kwambiri ndipo malo adasowa.Ma switch ophatikizika amathetsa vutoli: kubwezera malo a board kwa wopanga ndikuphatikiza magwiridwe antchito ambiri.
Kodi ubwino wa chosinthira chophatikizira chophatikizana ndi chiyani poyerekeza ndi dera lozungulira?
Njira yothetsera vutoli imakhala ndi P-channel metal oxide semiconductor field effect transistor (MOSFET), N-channel MOSFET, ndi kukoka mmwamba resistor.Ngakhale iyi ndi njira yotsimikiziridwa yosinthira njanji zamagetsi, ili ndi phazi lalikulu.Mayankho ophatikizika ambiri tsopano akupezeka, monga ma switch switch ngati Texas Instruments TPS22915 - ali ndi zopondapo zosakwana 1mm2!Chithunzi 2 chikuwonetsa kuyerekezera kwa kasitomala m'modzi ndi yankho la TI, lomwe lidathandizira TPS22968 kuchepetsa kupondaponda kwake ndi 80% ndikuphatikiza zinthu zambiri monga kugwedezeka koyendetsedwa ndi kutulutsa mwachangu.
Chifukwa chiyani ndikufunika kupha kolamulidwa?
Ma switch onse a TI ali ndi kusinthasintha kowongolera kuti achepetse kuthamangitsidwa, komwe kumadziwikanso kuti 'ntchito yoyambira yofewa.Powonjezera pang'onopang'ono kuchuluka kwa ma capacitor ake otulutsa, kusinthana kwa katundu kumalepheretsa "kutsika" voteji chifukwa cha kuthamangitsidwa mwachangu kwa ma capacitor onyamula.Kuti mumve zambiri za kuchepetsa kuthamangitsidwa kwapano, chonde werengani cholembera: "Kuwongolera Inrush Yapano".
Kodi Kutulutsa Mwachangu Ndi Chiyani?
Ntchito yotulutsa mwachangu, yomwe imapezeka pamasinthidwe ambiri, imatsimikizira kuti katundu wolumikizidwa kapena wolemala samayandama.Monga tawonera pachithunzi 3 pamwambapa, kulowetsa kotsika kwa 'on' kumazimitsa tchanelo ndikuyatsa discharge field effect transistor (FET) kudzera pa inverter.Izi zimapanga njira yochokera ku VOUT kupita ku GND, kuwonetsetsa kuti katunduyo akhoza kubwezeredwa mwachangu kumalo odziwika a 0V 'off'.
