VNI8200XPTR Power Switch ICs - Kugawa Mphamvu 8-Ch Octal HS SSR 100mA VIPower

VNI8200XP ndi dalaivala wa 8-channel monolithic wokhala ndi mawonekedwe otsika kwambiri, okhala ndi mawonekedwe ophatikizika a SPI komanso magwiridwe antchito apamwamba a 100 mA micropower step-down switching regulator peak current control loop mode. IC, yodziwika muukadaulo wa STMicroelectronics ™ VIPower™, imapangidwa kuti iziyendetsa katundu wamtundu uliwonse ndi mbali imodzi yolumikizidwa pansi.

Kuchepetsa kwa tchanelo komwe kumagwira ntchito limodzi ndi kutseka kwa matenthedwe, odziyimira pawokha pa tchanelo chilichonse, ndikuziyambitsanso zokha, tetezani chipangizocho kuti zisachuluke.

Ntchito zina zophatikizika ndi: kutayika kwa chitetezo cha GND chomwe chimangozimitsa zotulutsa za chipangizocho ngati chatsekedwa pansi, kutsekedwa kwamagetsi ndi hysteresis, Power Good diagnostic yovomerezeka yovomerezeka yamagetsi yamagetsi, kutulutsa kumathandizira kutulutsa mphamvu mwachangu ON / OFF, ndi ntchito yoyang'anira yokhazikika yachitetezo cha microcontroller; chitetezo cha kutentha kwambiri kuti chiwongolere kutentha kwa kesi ya IC.

Chipangizocho chimayika cholumikizira cha waya cha SPI chokhala ndi ma 8 kapena 16-bit; kudzera pa pini yosankhidwa chipangizocho chingathenso kugwira ntchito ndi mawonekedwe ofanana.

Ntchito zonse za 8-bit ndi 16-bit SPI zimagwirizana ndi kulumikizana kwa daisy.

Mawonekedwe a SPI amalola kulamula kwa dalaivala wotulutsa pothandizira kapena kuletsa njira iliyonse yokhala ndi, mumtundu wa 16-bit, chiwongolero choyang'anira kulumikizana kwamphamvu. Zimalolanso kuwunika momwe IC siginecha ya Mphamvu Zabwino, kutentha kwambiri panjira iliyonse, kuzindikira kwa kutentha kwa IC.

Kutsekeka kwamafuta omangidwira kumateteza chip ku kutentha kwambiri komanso kufupika. Pakuchulukirachulukira, tchanelo chimazimitsa ndi ON kachiwiri pokhapokha kutentha kwa IC kutsika pansi pa malo okhazikika ndi kutentha kwa hysteresis kotero kuti kutentha kwapakati kumayendetsedwa. Ngati vutoli limapangitsa kuti kutentha kwamilandu kufikire malire a kutentha, TCSD, mayendedwe odzaza kwambiri amazimitsa ndikuyambanso, osati nthawi imodzi, ngati kutentha kwanyengo ndi mphambano kutsika pansi pa malo awo okonzanso. Ngati vuto la kubwezeretsanso matenthedwe, ma tchanelo omwe adatsatidwa samayatsidwa mpaka kutentha kwapagawo kuyambiranso. Makanema osadzaza akupitilizabe kugwira ntchito moyenera. Kutentha kwa nkhani pamwamba pa TCSD kumanenedwa kudzera pa TWARN open drain pini. Dera lamkati limapereka lipoti losasunthika lodziwika bwino la FAULT ngati chimodzi mwazinthu zotsatirazi chichitika: njira OVT (kutentha kwambiri), cheke chalephera. The Power Good diagnostic imachenjeza wolamulira kuti magetsi operekera ali pansi pa malo okhazikika. Ntchito ya watchdog imagwiritsidwa ntchito kuti izindikire kuchitika kwa cholakwika cha pulogalamu ya woyang'anira wolandila. Zozungulira za watchdog zimapanga kukonzanso kwamkati pakatha ntchito yowerengera yamkati. Kukhazikitsanso timer kwa watchdog kumatha kutheka pogwiritsa ntchito kugunda koyipa pa pini ya WD. Ntchito ya watchdog ikhoza kuyimitsidwa ndi pini yodzipereka ya WD_EN. Pini iyi imalolanso kupanga mapulogalamu osiyanasiyana owonera nthawi.

Makina oyendetsa matrix amkati a LED (mizere 4, mizati 2) amalola kuzindikira momwe zinthu zilili. Chowongolera chamagetsi chophatikizika chotsika pansi chimapereka magetsi kwa woyendetsa matrix wamkati wa LED ndi ma buffers otulutsa malingaliro ndipo atha kugwiritsidwa ntchito kupereka ma optocouplers akunja ngati pulogalamuyo ikufuna kudzipatula. Woyang'anira amatetezedwa kumayendedwe afupikitsa kapena olemetsa chifukwa cha pulse-by-pulse current malire okhala ndi chipika chowongolera pano.