Semicon Umwimerere Wubwoko Bwinshi bwa Electronics Ibigize STC AVR 8254 Microcontroller MCU IC TL2844BDR-8 SOP

ibisobanuro bigufi:

Ibicuruzwa birambuye

Ibicuruzwa

Urukurikirane rwa TL284xB na TL384xB ni pin ihuza na TL284x isanzwe na TL384x hamwe nibikurikira.Imiyoboro yo gutangira isobanurwa ko ari 0.5 mA (max), mugihe imiyoboro ya oscillator isohoka kugeza kuri 8.3 mA (ubwoko).Mubyongeyeho, mugihe cyo gufunga munsi ya volvoltage, ibisohoka bifite voltage ntarengwa ya 1.2 V mugihe urohama mA 10 (VCC = 5 V).Itandukaniro rikomeye hagati yabanyamuryango buruhererekane ni urwego rwa UVLO ninshingano ntarengwa -cyiciro.Ubusanzwe UVLO irenga 16 V (kuri) na 10 V (kuzimya) kubikoresho bya TLx842B na TLx844B bituma bihuza neza nibisabwa kumurongo.Ibipimo bisanzwe bihuye kubikoresho bya TLx843B na TLx845B ni 8.4 V (kuri) na 7.6 V (kuzimya).Ibikoresho bya TLx842B na TLx843B birashobora gukora kumasoro yegera 100%.Urwego rwinshingano zingana na 0% kugeza kuri 50% zibonwa na TLx844B na TLx845B hiyongereyeho flip-flop y'imbere, ihagarika ibisohoka mubindi bihe byose by'isaha. Ibikoresho bya TL284xB birangwa no gukora kuva - 40 ° C kugeza kuri 85 ° C.Ibikoresho bya TL384xB birangwa no gukora kuva 0 ° C kugeza 70 ° C.

Ibiranga ibicuruzwa

UBWOKO	GUSOBANURIRA
Icyiciro	Inzira zuzuye (IC) Imigaragarire - CODECs
Mfr	Ibikoresho bya Texas
Urukurikirane	-
Amapaki	Tape & Reel (TR) Kata Tape (CT) Digi-Reel®
SPQ	250T & R.
Imiterere y'ibicuruzwa	Bikora
Andika	Stereo Audio
Imigaragarire yamakuru	Isohora rya PCM
Icyemezo (Bits)	24 b
Umubare wa ADCs / DACs	2/2
Sigma Delta	Yego
Ikigereranyo cya S / N, ADCs / DACs (db) Ubwoko	92/102
Urwego rudasanzwe, ADCs / DACs (db) Ubwoko	93/97
Umuvuduko - Gutanga, Kugereranya	2.7V ~ 3.6V
Umuvuduko - Gutanga, Digitale	1.65V ~ 1.95V
Gukoresha Ubushyuhe	-40 ° C ~ 85 ° C.
Ubwoko bwo Kuzamuka	Umusozi
Ipaki / Urubanza	32-VFQFN Yerekanwe Pad
Ibikoresho byo gutanga ibikoresho	32-VQFN (5x5)
Umubare wibicuruzwa shingiro	TLV320

Umugenzuzi wa PWM

Impinduka z'ubugari bwa pulse (PWM) bivuga gukoresha ikoreshwa rya digitale ya microprocessor kugirango igenzure uruziga kandi ni uburyo bwo kubara imibare urwego rwikimenyetso.Kugenzura ibizunguruka bisa muburyo bwa digitale birashobora kugabanya cyane ikiguzi nogukoresha ingufu za sisitemu.Microcontrollers nyinshi zirimo PWM igenzura muri zo.

Ihame

Ibisobanuro muri make byihame ryumugenzuzi wa PWM
Ihame ryibanze ryo kugenzura PWM rishingiye ku kuba impiswi zifunganye zingana zingana zingana hamwe nuburyo butandukanye bigira ingaruka zimwe iyo byongewe kumurongo hamwe nubusembure.Hariho uburyo butandukanye bwo gutondekanya ubugari bwa pulse, nka unipolar na bipolar, guhuza hamwe no kudahuza, guhinduranya urukiramende, hamwe na sine wave modulation.Uburyo bwo kugenzura unipolar PWM bivuze ko umuraba wabatwara uhindurwa gusa mucyerekezo kimwe cyigice cyizunguruka, kandi imiyoboro ya PWM nayo ihinduka mugice kimwe gusa, mugihe uburyo bwo kugenzura bipolar PWM ihindura umurongo wabatwara mubyerekezo bibiri mugice cyakabiri , na PWM yumurongo nayo yahinduwe mubyerekezo bibiri.Ukurikije niba ibimenyetso byabatwara bihujwe nikimenyetso cyo guhindura, igenzura rya PWM rishobora kugabanywa muburyo bwo guhuza hamwe no guhinduranya ibintu.Urukiramende rwerekana impagarike yubugari burangwa no gusohora impiswi yubugari bwinkingi zingana, kandi irashobora kugenzura gusa umubare runaka uhuza;Sine waveform pulse ubugari modulasiyo irangwa nibisohoka pulse ubugari bwinkingi, ntabwo ubugari bungana, ubugari burahinduka ukurikije amategeko ya sine, ibisohoka byahindutse hafi ya sine waveform.Sine wave pulse ubugari modulation nayo yitwa SPWM.kubyara ubugari bwa pulse ukurikije ibimenyetso byo kugenzura nurufunguzo rwubuhanga.Uburyo bwa triangulaire yo kugereranya uburyo, uburyo bwo kugereranya hystereze, hamwe nuburyo bwa voltage vector uburyo bukoreshwa.

Abagenzuzi ba PWM

Abagenzuzi ba PWM bazwi cyane mubakora.
Ibyamamare ni ibikoresho bya Texas, Motorola, Feifei Semiconductor, Unitrode, Micro Linear, Semiconductor ya Silicon General, Siemens, STMicroelectronics, na Semiconductor ya Royal Philips mu Buholandi, nibindi.

Ibyerekeye Ibicuruzwa

TL284xB na TL384xB y'uruhererekane rwo kugenzura imiyoboro ihuriweho itanga ibintu bikenewe kugirango dushyire mu bikorwa umurongo utari umurongo cyangwa dc-kuri-dc igenamigambi-yuburyo bugenzurwa na gahunda, hamwe numubare muto wibigize hanze.Imirongo yashyizwe mubikorwa imbere harimo gufunga amashanyarazi (UVLO) hamwe nibisobanuro bitondekanye neza kugirango bibe byuzuye muburyo bwo kwinjiza amakosa.Izindi nzitizi zimbere zirimo logique kugirango yizere ko ikora neza, igereranya rya pulse-ubugari (PWM) igereranya nayo itanga imipaka igarukira, hamwe na totem-pole isohoka igenewe inkomoko cyangwa kurohama hejuru.Ibisohoka ibyiciro, bikwiranye no gutwara N-umuyoboro MOSFETs, ni hasi iyo iri muri reta.
Urukurikirane rwa TL284xB na TL384xB ni pin ihuza na TL284x isanzwe na TL384x hamwe nibikurikira.Imiyoboro yo gutangira isobanurwa ko ari 0.5 mA (max), mugihe imiyoboro ya oscillator isohoka kugeza kuri 8.3 mA (ubwoko).Mubyongeyeho, mugihe cyo gufunga munsi ya volvoltage, ibisohoka bifite voltage ntarengwa ya 1.2 V mugihe urohama mA 10 (VCC = 5 V).
Itandukaniro rikomeye hagati yabanyamuryango buruhererekane ni urwego rwa UVLO ninshingano ntarengwa -cyiciro.Ubusanzwe UVLO irenga 16 V (kuri) na 10 V (kuzimya) kubikoresho bya TLx842B na TLx844B bituma bihuza neza nibisabwa kumurongo.Ibipimo bisanzwe bihuye kubikoresho bya TLx843B na TLx845B ni 8.4 V (kuri) na 7.6 V (kuzimya).Ibikoresho bya TLx842B na TLx843B birashobora gukora kumasoro yegera 100%.Urwego rwinshingano zingana na 0% kugeza kuri 50% zibonwa na TLx844B na TLx845B hiyongereyeho flip-flop y'imbere, ihagarika ibisohoka mubindi bihe byose by'isaha. Ibikoresho bya TL284xB birangwa no gukora kuva - 40 ° C kugeza kuri 85 ° C.Ibikoresho bya TL384xB birangwa no gukora kuva 0 ° C kugeza 70 ° C.

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