ISemicon yoqobo yaMacandelo oMbane owahlukeneyo oMnandi we-STC AVR 8254 Microcontroller MCU IC TL2844BDR-8 SOP

ISemicon yoQoqo lwezoNdwebo zoMbane zoMxholo ze-STC AVR 8254 Microcontroller MCU IC TL2844BDR-8 SOP Umfanekiso okhoyo

inkcazelo emfutshane:

Thumela i-imeyile kuthi Khuphela i-Datesheet

Iinkcukacha zeMveliso

Iithegi zeMveliso

I-TL284xB kunye ne-TL384xB series ziyi-pin ehambelana nomgangatho we-TL284x kunye ne-TL384x kunye nophuculo olulandelayo.I-current-up current ichazwe ukuba yi-0.5 mA (max), ngelixa i-oscillator discharge current ihlanjululwa kwi-8.3 mA (uhlobo).Ukongezelela, ngexesha leemeko zokuvala i-undervoltage, i-output ine-voltage ye-saturation ephezulu ye-1.2 V ngelixa i-10 mA (VCC = 5 V).Umahluko omkhulu phakathi kwamalungu olu ngcelele yimiqobo ye-UVLO kunye noluhlu lwemijikelo ephezulu.Imilinganiselo ye-UVLO eqhelekileyo ye-16 V (on) kunye ne-10 V (ivaliwe) kwi-TLx842B kunye ne-TLx844B izixhobo zibenza bafaneleke ngokufanelekileyo kwizicelo ezingaxhunyiwe kwi-intanethi.Imilinganiselo eqhelekileyo ehambelanayo yezixhobo zeTLx843B kunye neTLx845B ziyi-8.4 V (on) kunye ne-7.6 V (ivaliwe).Izixhobo ze-TLx842B kunye ne-TLx843B zinokusebenza kwimijikelezo yomsebenzi esondela kwi-100%.Uluhlu lomjikelo we-0% ukuya kwi-50% lufunyanwa yi-TLx844B kunye ne-TLx845B ngokongezwa kwe-flip-flop yangaphakathi, evala imveliso kuwo wonke omnye umjikelo wewotshi. 40°C ukuya kuma-85°C.Izixhobo ze-TL384xB-series ziphawulwe ukusebenza ukusuka ku-0 ° C ukuya ku-70 ° C.

Iimpawu zeMveliso

UHLOBO	INKCAZO
Udidi	IiSekethe eziDityanisiweyo (ICs) Ujongano- CODECs
Mfr	Texas Instruments
Uthotho	-
Iphakheji	Iteyiphu & neReel (TR) Sika iTape (CT) Digi-Reel®
SPQ	250T&R
Ubume beMveliso	Iyasebenza
Uhlobo	Umsindo we-stereo
Data Interface	PCM Audio Interface
Isisombululo (Amasuntswana)	24 b
Inani lee-ADCs/DACs	2/2
Sigma Delta	Ewe
Umlinganiselo we-S/N, ii-ADCs / ii-DACs (db) isiHlophe	92/102
Uluhlu oluDynamic, ii-ADCs / iiDACs (db) isiHlophe	93/97
I-Voltage - Ukubonelela, i-Analog	2.7V ~ 3.6V
Umbane - Unikezelo, iDijithali	1.65V ~ 1.95V
Ubushushu bokusebenza	-40°C ~ 85°C
Uhlobo lokuNqamisa	INtaba engaphezulu
Ipakethe / Ityala	I-32-VFQFN eveziweyo yePad
Supplier Device Package	32-VQFN (5x5)
Inombolo yeMveliso esisiseko	TLV320

Umlawuli we-PWM

I-Pulse Width Modulation (PWM) ibhekisela ekusebenziseni imveliso yedijithali ye-microprocessor ukulawula isiphaluka se-analog kwaye yindlela yokubhala ikhowudi yedijithali inqanaba lomqondiso we-analog.Ukulawula iisekethe ze-analog ngedijithali kunokunciphisa kakhulu iindleko kunye nokusetyenziswa kwamandla kwenkqubo.Uninzi lwe-microcontroller luqukethe abalawuli be-PWM ngaphakathi kwabo.

Umgaqo

Inkcazo emfutshane yomgaqo womlawuli we-PWM
Umgaqo osisiseko wolawulo lwe-PWM usekelwe kwinto yokuba i-pulses emxinwa yomthamo wempembelelo elinganayo kunye neemilo ezahlukeneyo zinefuthe elifanayo xa zongezwa kwikhonkco kunye ne-inertia.Kukho iindlela ezahlukeneyo zokuhlela ukumodareyitha kobubanzi be-pulse, njenge-unipolar kunye ne-bipolar, i-synchronous kunye ne-asynchronous, i-modulation wave wave, kunye ne-sine wave modulation.Indlela yokulawula i-PWM ye-unipolar ithetha ukuba i-wave wave iguqulwa kuphela kwicala elinye kwisiqingatha somjikelezo, kwaye i-waveform ye-PWM iphinde iguqulwe kuphela kwicala elinye, ngelixa indlela yokulawula i-bipolar PWM itshintsha i-wave wave kumacala amabini kwisiqingatha somjikelezo. , kunye ne-PWM waveform nayo itshintshiwe kumacala amabini.Ngokuxhomekeke ekubeni isignali yomthwali ihambelaniswe nesiginali yokumodareyitha, ulawulo lwe-PWM lunokwahlulwa lube yimodulation ye-synchronous kunye ne-asynchronous modulation.Ukumodareyitha kobubanzi be-waveform yoxande luphawulwa yikholamu yobubanzi be-pulse ephumayo bububanzi obulinganayo, kwaye inokulawula kuphela inani elithile leeharmonics;Ukumodareyitha kobubanzi be-Sine waveform kuphawulwa ngumhlathi wobubanzi be-pulse, hayi ububanzi obulinganayo, ububanzi buguquka ngokomgaqo we-sine, i-wave waveform isondele kwi-sine waveform.I-Sine wave pulse wide modulation ikwabizwa ngokuba yi-SPWM.ukuvelisa ububanzi be-pulse ngokuhambelana nomqondiso wokulawula isitshixo sobu buchule.Indlela yokuthelekisa ye-waveform ye-triangular, indlela yokuthelekisa i-hysteresis loop, kunye ne-space voltage vector indlela ziqhele ukusetyenziswa.

Abalawuli bePWM

Abalawuli be-PWM ngabavelisi abaziwayo.
Ezona zidumileyo zi-Texas Instruments, Motorola, Feifei Semiconductor, Unitrode, Micro Linear, Silicon General Semiconductor, Siemens, STMicroelectronics, kunye neRoyal Philips Semiconductors eNetherlands, njl.

Malunga neMveliso

Uluhlu lwe-TL284xB kunye ne-TL384xB yolawulo lweesekethe ezidibeneyo zibonelela ngeempawu eziyimfuneko ukuphumeza i-off-line okanye i-dc-to-dc i-fixed-frequency current-mode schemes, kunye nenani elincinci lamacandelo angaphandle.Iisekethe eziphunyeziweyo zangaphakathi zibandakanya ukuvalwa kwe-undervoltage (UVLO) kunye nesalathiso esichanekileyo esilungiswe ngokuchaneka kwigalelo le-amplifier yempazamo.Ezinye iisekethe zangaphakathi zibandakanya ingqiqo yokuqinisekisa ukusebenza kwe-latched, i-pulse-width modulation (PWM) isithelekisi esikwabonelela ngolawulo lomda wangoku, kunye nenqanaba lokuphuma kwe-totem-pole eyenzelwe ukukhangela okanye ukucwilisa i-high-peak current.Inqanaba lemveliso, elilungele ukuqhuba i-N-channel MOSFETs, liphantsi xa likwi-off state.
I-TL284xB kunye ne-TL384xB series ziyi-pin ehambelana nomgangatho we-TL284x kunye ne-TL384x kunye nophuculo olulandelayo.I-current-up current ichazwe ukuba yi-0.5 mA (max), ngelixa i-oscillator discharge current ihlanjululwa kwi-8.3 mA (uhlobo).Ukongezelela, ngexesha leemeko zokuvala i-undervoltage, i-output ine-voltage ye-saturation ephezulu ye-1.2 V ngelixa i-10 mA (VCC = 5 V).
Umahluko omkhulu phakathi kwamalungu olu ngcelele yimiqobo ye-UVLO kunye noluhlu lwemijikelo ephezulu.Imilinganiselo ye-UVLO eqhelekileyo ye-16 V (on) kunye ne-10 V (ivaliwe) kwi-TLx842B kunye ne-TLx844B izixhobo zibenza bafaneleke ngokufanelekileyo kwizicelo ezingaxhunyiwe kwi-intanethi.Imilinganiselo eqhelekileyo ehambelanayo yezixhobo zeTLx843B kunye neTLx845B ziyi-8.4 V (on) kunye ne-7.6 V (ivaliwe).Izixhobo ze-TLx842B kunye ne-TLx843B zinokusebenza kwimijikelezo yomsebenzi esondela kwi-100%.Uluhlu lomjikelo we-0% ukuya kwi-50% lufunyanwa yi-TLx844B kunye ne-TLx845B ngokongezwa kwe-flip-flop yangaphakathi, evala imveliso kuwo wonke omnye umjikelo wewotshi. 40°C ukuya kuma-85°C.Izixhobo ze-TL384xB-series ziphawulwe ukusebenza ukusuka ku-0 ° C ukuya ku-70 ° C.

Ngaphambili: TLV320AIC3101IRHBR uMgangatho oPhezulu oMtsha kunye neyoqobo ye-IC ye-IC eDityanisiweyo yoMxholo woMbane weSekethe kwisitokhwe

Okulandelayo: Spot electronic IC chip TL431BIDBZR isekethe edityanisiweyo yeVoltage References

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