Kupu Whakataki
He wāhanga nui, he wāhanga nui hoki o te rihi te maramara kawa. Koia te kawenga mō te whakawhitiwhiti kōrero ki te taputapu hono, he rite ki te piriti e hono ana i te taputapu. Ko te pumau o te maramara kawa he mea nui ki te wheako me te pono o te utu tere.
Nō nā tata nei, i whakarewahia e Rockchip tētahi maramara kawa RK838 me te matua Cortex-M0 kua hangaia ki roto, e tautoko ana i te utu tere tauranga-rua USB-A me USB-C, e tautoko ana i te PD3.1, UFCS me ngā kawa utu tere maha kei te mākete, ā, ka taea te whakatutuki i te mana utu teitei rawa atu ko te 240W, e tautoko ana i te ngaohiko pumau tino tika me te whakahaere iahiko pumau me te iti rawa o te kai hiko tūtatari.
Maramara Rockchip RK838
Ko te Rockchip RK838 he maramara kawa utu tere e whakauru ana i te USB PD3.1 me te matua kawa UFCS, he tauranga USB-A me te tauranga USB-C, e tautoko ana i te putanga takirua A+C, ā, e tautoko ana ngā hongere e rua i te kawa UFCS. Tau tiwhikete UFCS: 0302347160534R0L-UFCS00034.
Ka whakamahia e te RK838 te hoahoanga MCU, ka whakauruhia te matua Cortex-M0, te wāhi rokiroki rama kaha-nui 56K, te wāhi SRAM 2K hei whakatutuki i te PD me ētahi atu kawa motuhake, ā, ka taea e ngā kaiwhakamahi te whakatutuki i te rokiroki waehere maha-kawa me ngā mahi tiaki ritenga.
Mō te utu tere kaha-teitei, kāore e taea te wehe atu i te whakahaere ngaohiko tino tika. Ka tautoko a RK838 i te putanga ngaohiko pumau o te 3.3-30V, ā, ka taea te whakatutuki i te tautoko iahiko pumau o te 0-12A. Ina kei roto te iahiko pumau i te 5A, he iti iho te hapa i te ±50mA.
Kei roto hoki i te RK838 ngā mahi tiaki whānui, tae atu ki ngā pine CC1/CC2/DP/DM/DP2/DPM2 e tautoko ana i te ngaohiko ātete 30V, ka taea te ārai i ngā raina raraunga kua pakaru kei kino te hua, ā, ka tautoko i te whakaweto tere o te putanga i muri i te ngaohiko nui. Kei roto hoki i te maramara he tiaki iahiko nui, he tiaki iahiko nui, he tiaki iahiko iti, me te tiaki iahiko wera nui hei whakarite i te whakamahinga haumaru.
Wā tuku: Mei-09-2023