Sabo da Na asali a cikin TCAN1042VDRQ1 Abubuwan Wutar Lantarki Haɗaɗɗen Da'irar Ics Asalin 1-7 Aiki Daya Tasha BOM Jerin Sabis
Halayen Samfur
| TYPE | BAYANI |
| Kashi | Haɗin kai (ICs) |
| Mfr | Texas Instruments |
| Jerin | Mota, AEC-Q100 |
| Kunshin | Tape & Reel (TR) Yanke Tape (CT) Digi-Reel® |
| SPQ | 2500 T&R |
| Matsayin samfur | Mai aiki |
| Nau'in | Transceiver |
| Yarjejeniya | CANbus |
| Adadin Direbobi/Masu karɓa | 1/1 |
| Duplex | - |
| Adadin Bayanai | 5 Mbps |
| Voltage - Samfura | 4.5 ~ 5.5V |
| Yanayin Aiki | -55°C ~ 125°C |
| Nau'in hawa | Dutsen Surface |
| Kunshin / Case | 8-SOIC (0.154 "Nisa 3.90mm) |
| Kunshin Na'urar Mai bayarwa | 8-SOIC |
| Lambar Samfurin Tushen | Saukewa: TCAN1042 |
Wannan dangin transceiver na CAN ya dace da daidaitaccen Layer na zahiri na ISO 1189-2 (2016) CAN mai saurin sauri.An ƙera duk na'urori don amfani a cibiyoyin sadarwar CAN FD tare da ƙimar bayanai har zuwa 2Mbps (megabits a sakan daya).An tsara na'urorin da ke da suffix na "G" don cibiyoyin sadarwa na CAN FD tare da ƙimar bayanai har zuwa 5Mbps, kuma na'urorin da ke da "V" suffix suna da ikon shigar da wutar lantarki don jujjuya matakin I/O (don saita mashigin fil ɗin shigarwa da matakin fitarwa na RDX. ).Jerin yana fasalta yanayin jiran aiki mara ƙarfi da buƙatun farkawa mai nisa.Bugu da ƙari, duk na'urori sun haɗa da yawan fasalulluka na kariya don inganta na'urar da kwanciyar hankali na CAN.
Wannan dangin transceiver na CAN ya dace da daidaitaccen Layer na zahiri na ISO 1189-2 (2016) CAN mai saurin sauri.An ƙera duk na'urori don amfani a cibiyoyin sadarwar CAN FD tare da ƙimar bayanai har zuwa 2Mbps (megabits a sakan daya).An tsara na'urorin da ke da suffix na "G" don cibiyoyin sadarwa na CAN FD tare da ƙimar bayanai har zuwa 5Mbps, kuma na'urorin da ke da "V" suffix suna da ikon shigar da wutar lantarki don jujjuya matakin I/O (don saita mashigin fil ɗin shigarwa da matakin fitarwa na RDX. ).Jerin yana fasalta yanayin jiran aiki mara ƙarfi da buƙatun farkawa mai nisa.Bugu da ƙari, duk na'urori sun haɗa da wasu fasalulluka na kariya don inganta zaman lafiyar na'urar da CAN.
Menene transceiver na CAN?
A CAN transceiver ne 232- ko 485-kamar mai canzawa guntu wanda babban aikinsa shine canza siginar TTL na mai sarrafa CAN zuwa siginar banbanta na bas ɗin CAN.
Menene alamun TTL mai sarrafawa?
Masu kula da CAN na yau gabaɗaya an haɗa su tare da MCU kuma suna aikawa da karɓar siginar TTL sune siginar MCU (babba ko ƙasa).
A baya can akwai masu sarrafa CAN daban da kumburin hanyar sadarwa na CAN zai ƙunshi guntu guda uku: MCU guntu, mai sarrafa CAN, da CAN transceiver.Yanzu shine biyu na farko da aka haɗa tare (duba hoto a farkon labarin).
Halayen shigarwa
Don keɓantacce na CAN transceivers, shigarwar tana nufin galibin halayen shigarwa a gefen mai sarrafa CAN na haɗin, wanda ya ƙunshi shigar da wutar lantarki da shigar da sigina.
Dangane da ƙarfin wutar lantarki na CAN na mai sarrafawa za a iya zaɓin 3.3V ko 5V mai ƙarfi na CAN.Matsakaicin shigarwa na al'ada na keɓantaccen tsarin CAN shine VCC ± 5%, galibi la'akari da cewa ana iya kiyaye matakin bas ɗin CAN a cikin kewayon ƙimar ƙima da kuma yin aikin guntu na CAN na biyu a kusa da wutar lantarki na ƙima.
Don kwakwalwan kwakwalwan kwamfuta daban-daban na CAN transceiver, finin VIO na guntu yana buƙatar haɗa shi zuwa ƙarfin tunani iri ɗaya kamar matakin siginar TXD don dacewa da matakin siginar, ko kuma idan babu fil ɗin VIO, yakamata a kiyaye matakin siginar daidai da VCC. .Lokacin amfani da keɓantaccen jerin CTM transceivers ya zama dole don dacewa da matakin siginar TXD tare da ƙarfin samar da wutar lantarki, watau 3.3V daidaitaccen mai sarrafa CAN ko 5V daidaitaccen mai sarrafa CAN.
Siffofin watsawa
Siffofin watsawa na mai karɓar CAN sun dogara ne akan sigogi uku: watsa jinkiri, karɓar jinkiri, da jinkirin sake zagayowar.
Lokacin zabar CAN transceiver muna ɗauka cewa ƙaramin ma'aunin jinkiri ya fi kyau, amma menene fa'idodin ƙaramin jinkirin watsawa ya kawo kuma wadanne abubuwa ne ke iyakance jinkirin watsawa a cikin hanyar sadarwar CAN?
A cikin ka'idar CAN, kumburin aikawa yana aika bayanai ta hanyar TXD yayin da RDX ke sa ido kan jihar bas.Idan bit na duba RDX bai dace da abin da ake watsawa ba, kumburin yana gano ɗan kuskure.Idan abin da ake sa ido a filin sasantawa bai dace da ainihin watsawa ba, kumburin yana daina watsawa, watau akwai nodes da yawa akan bas ɗin da ke aika bayanai a lokaci guda kuma ba a ba da kumburin fifikon watsa bayanai ba.
Hakazalika, a cikin duka duban bayanai da raƙuman amsa ACK, ana buƙatar RDX don samun matsayin bayanan bas ɗin a cikin ainihin-lokaci.Misali, a cikin sadarwar hanyar sadarwa ta al'ada, ban da rashin daidaituwa na kumburi, don dogaro da dogaro da amsawar ACK, ya zama dole don tabbatar da cewa an canja wurin ACK bit zuwa rajistar RDX na mai sarrafawa a cikin wani ɗan lokaci, in ba haka ba, kumburin aika zai kasance. gano kuskuren amsa.Saita matsayin samfur zuwa 70% a 1Mbps.Sannan mai sarrafa zai yi samfurin ACK bit a kashi 70% daga farkon lokacin ACK bit, watau jinkirin sake zagayowar duk hanyar sadarwar CAN ya zama ƙasa da 700ns, daga lokacin da TXD ya aika, har zuwa ACK. Ana karɓar bit a RDX.
A cikin keɓantaccen hanyar sadarwar CAN, wannan siga an ƙaddara shi ne ta hanyar jinkirin keɓewa, jinkirin direban CAN, da tsayin kebul.Ƙananan lokacin jinkiri, don haka, yana taimakawa wajen yin samfurin ACK raƙuman dogaro da dogaro da ƙara tsawon bas ɗin.Hoto 2 yana nuna martanin ACK na nodes guda biyu suna sadarwa ta amfani da mai ɗaukar hoto na CTM1051KAT.Yawancin lokacin jinkiri da ke tattare da transceiver shine kusan 120ns.
