Spot electronic IC chip TL431BIDBZR e kopantsoeng potoloho ea Voltage References BOM SERVICE RELIABLE SUPPLIER
Lisebelisoa tsa TL431 le TL432 ka bobeli li fanoa ka limaraka tse tharo, ka mamello ea pele (ho 25°C) ea 0.5%, 1%, le 2%, bakeng sa B, A, le kereiti e tloaelehileng, ka ho latellana.Ho feta moo, ho hoholeha ho tlase ho bapisoa le mocheso ho netefatsa botsitso bo botle holim'a mefuta eohle ea mocheso.
Lisebelisoa tsa TL43xxC li khetholloa bakeng sa ts'ebetso ho tloha ho 0 ° C ho ea ho 70 ° C, lisebelisoa tsa TL43xxI li khetholloa bakeng sa ts'ebetso ho tloha -40 ° C ho ea ho 85 ° C, 'me lisebelisoa tsa TL43xxQ li khetholloa ho sebetsa ho tloha -40 ° C ho ea ho 125 ° C. .
Litšobotsi tsa Sehlahisoa
| MOFUTA | TLHALOSO |
| Sehlopha | Lipotoloho tse Kopantsoeng (ICs) PMIC - Reference Voltage |
| Mfr | Lisebelisoa tsa Texas |
| Mfr | Lisebelisoa tsa Texas |
| Letoto | - |
| Sephutheloana | Theipi le Reel (TR) Seha Tape (CT) Digi-Reel® |
| SPQ | 250T&R |
| Boemo ba Sehlahiswa | E sebetsa |
| Mofuta oa Litšupiso | Shunt/ |
| Mofuta oa Sephetho | E ka fetoha |
| Voltage - Output (Min/Fixed) | 2.495V |
| Voltage - Output (Boholo) | 36 V |
| Hajoale - Sephetho | 100 mA |
| Mamello | ±0.5% |
| Mocheso Coefficient | - |
| Lerata - 0.1Hz ho 10Hz | - |
| Lerata - 10Hz ho 10kHz | - |
| Voltage - Kenyeletso | - |
| Hajoale - Phepelo | - |
| Hona joale - Cathode | 700µA |
| Mocheso oa ho sebetsa | -40°C ~ 85°C (TA) |
| Mofuta oa ho Beha | Thaba e kaholimo |
| Sephutheloana / Taba | TO-236-3, SC-59, SOT-23-3 |
| Sephutheloana sa Sesebelisoa sa Bafani | SOT-23-3 |
| Nomoro ea Sehlahisoa sa Motheo | TL431 |
Phello
Karolo ea li-voltage reference chips.
Ka har'a sebaka se lekantsoeng sa ts'ebetso ea hajoale, ho nepahala ha sesebelisoa sa mohloli oa motlakase oa litšupiso (ho kheloha ha boleng ba motlakase, ho hoholeha, sekhahla sa tokiso ea hajoale, le li-parameter tse ling tsa sesupo) li betere ho feta diode e tloaelehileng ea taolo ea zen kapa regulator ea li-terminal tse tharo, ka hona e sebelisoa tlhokong ea voltage ea litšupiso tse nepahetseng haholo joalo ka motlakase oa litšupiso, hangata bakeng sa A/D, D / A, le mohloli oa motlakase o nepahetseng haholo, empa hape le lipotoloho tse ling tsa tlhahlobo ea motlakase le tsona li sebelisa mohloli oa matla a litšupiso.
Karolelano
Sehlopha sa li-voltage reference chips.
Ho ea ka tšupiso ea kahare, sebopeho sa tlhahiso ea motlakase se fapane, referense ea motlakase e arotsoe ka referense ea voltage ea bandgap le referense ea voltage regulator mekhahlelo e 'meli.Band gap voltage reference structure is a front-biased PN junction le voltage e amanang le VT (thermal potential) ka letoto, ho sebelisa mocheso o mobe oa motsoako oa PN le mocheso o motle oa VT offset ho finyella matšeliso a mocheso.Sebopeho sa regulator voltage regulator ke letoto la khokahanyo ea sub-surface breakdown regulator le PN junction, ho sebelisa coefficient e ntle ea mocheso oa molaoli le mocheso o fosahetseng oa motsoako oa PN ho hlakola matšeliso a mocheso.Ho senyeha ha bokaholimo ho thusa ho fokotsa lerata.Matla a referense a referense ea li-tube voltage a phahame (hoo e ka bang 7V);matla a referense a referense ea voltage ea bandgap a tlase, ka hona ea morao-rao e sebelisoa haholo moo ho hlokahalang li-voltages tse tlase.
Ho ipapisitse le sebopeho sa ts'ebeliso ea kantle, litšupiso tsa voltage li arotsoe ka mekhahlelo e 'meli: letoto le le ts'oanang.Ha e sebelisoa, litšupiso tsa li-voltage tsa letoto li tšoana le lisebelisoa tsa motlakase tse laoloang ke li-terminal tse tharo, moo motlakase oa referense o hokahantsoeng ka letoto le mojaro;litšupiso tsa motlakase oa parallel li tšoana le li-voltage regulator, moo motlakase oa referense o hokahantsoeng ka ho bapa le mojaro.Ka bobeli litšupiso tsa band gap voltage le litšupiso tsa li-tube voltage li ka sebelisoa litlhophisong tsena tse peli.Monyetla oa litšupiso tsa li-voltage tsa letoto ke hore li hloka feela phepelo ea ho kenya letsoho ho fana ka lebelo le khutsitseng la chip le ho fana ka mojaro oa hona joale ha mojaro o le teng;litšupiso tsa motlakase tse tsamaisanang li hloka hore sete ea leeme ea hajoale e be kholo ho feta kakaretso ea nako e khutsitseng ea chip le boholo ba moroalo oa hajoale 'me ha lia lokela lits'ebetso tsa motlakase o tlase.Melemo ea litšupiso tsa motlakase oa parallel ke hore li na le leeme la hajoale, li khona ho sebetsana le mefuta e mengata e fapaneng ea li-voltages, 'me li loketse ho sebelisoa e le litšupiso tsa motlakase tse emisitsoeng.
Khetho
Khetho ea li-series voltage reference chip le parallel voltage reference chip
Letoto la li-voltage reference li na le li-terminals tse tharo: VIN, VOUT, le GND, tse ts'oanang le molaoli oa mola, empa ka tlhahiso e tlase ea hona joale le ho nepahala ho holimo haholo.Lits'oants'o tsa li-voltage tsa Series li hokahane ka mokhoa o hlophisitsoeng letotong le mojaro (setšoantšo sa 1) 'me li ka sebelisoa e le sehanyetsi se laoloang ke motlakase se pakeng tsa liteishene tsa VIN le VOUT.Ka ho fetola ho hanyetsa ha eona ka hare, phapang pakeng tsa boleng ba VIN le ho theoha ha motlakase ho pholletsa le mohanyetsi oa ka hare (ho lekana le motlakase oa boitsebiso ho VOUT) o bolokiloe o tsitsitse.Kaha hona joale ho hlokahala ho hlahisa ho theoha ha motlakase, sesebelisoa se hloka ho hula palo e nyane ea hona joale e khutsitseng ho netefatsa taolo ea motlakase ntle le mojaro.Litšupiso tsa li-voltage tse amanang le Series li na le litšobotsi tse latelang.
- Matla a phepelo (VCC) a tlameha ho ba holimo ho lekana ho etsa bonnete ba hore motlakase o theoha ka har'a li-resistors tse ka hare, empa motlakase o phahameng haholo o ka senya sesebelisoa.
- Sesebelisoa le sephutheloana sa sona se tlameha ho khona ho senya matla a letoto la li-tube regulator.
- Ha ho na moroalo, matla a le mong feela a felisitsoeng ke matla a khutsitseng a referense ea voltage.
- Litefiso tsa li-voltage tsa Series hangata li na le liphoso tsa qalong le li-coefficients tsa mocheso ho feta litšupiso tsa motlakase tse tšoanang.
Referense ea motlakase e tšoanang e na le li-terminals tse peli: OUT le GND.E tšoana ka molao le diode ea taolo ea motlakase empa e na le litšobotsi tse betere tsa taolo ea motlakase, e ts'oanang le diode ea taolo ea motlakase e hlokang mohanyetsi oa kantle mme e sebetsa ka ho tsamaisana le mojaro (Setšoantšo sa 2).The parallel voltage reference e ka sebelisoa e le mohloli oa hona joale o laoloang ke motlakase o hokahantsoeng pakeng tsa OUT le GND, ka ho fetola motlakase oa ka hare e le hore phapang pakeng tsa motlakase oa phepelo le ho theoha ha motlakase ho pholletsa le resistor R1 (e lekanang le motlakase oa referense ho OUT) e lule e le teng. tsitsitseng.Ka tsela e 'ngoe, referense ea mofuta oa parallel voltage e boloka motlakase o sa feleng ho OUT ka ho boloka kakaretso ea mojaro oa hona joale le oa hona joale o phallang ka har'a referense ea voltage kamehla.Litšupiso tsa mofuta o tšoanang li na le litšobotsi tse latelang.
- Ho khethoa ha R1 e loketseng ho netefatsa hore litlhoko tsa motlakase lia fihlelleha 'me referense ea mofuta o tšoanang oa motlakase ha e na moeli holim'a boholo ba motlakase oa phepelo.
- Boholo ba hajoale bo fanoeng ke phepelo bo ikemetse ho mojaro le phepelo ea hajoale e phallang ka har'a mojaro mme referense e hloka ho hlahisa phokotseho e loketseng ea motlakase ho pholletsa le resistor R1 ho boloka motlakase oa OUT o sa feleng.
- Joalo ka lisebelisoa tse bonolo tsa 2-terminal, litšupiso tsa motlakase tse tšoanang li ka hlophisoa hore e be lipotoloho tse ncha tse kang li-electro voltage regulator, lilaoli tsa fatše tse phaphametseng, li-circuits tse fokotsang, le li-circuits tse fokotsang.
- Litšupiso tsa "parallel voltage" hangata li na le ts'ebetso e tlase ho feta litšupiso tsa motlakase oa letoto.
Hang ha liphapang lipakeng tsa letoto le litšupiso tsa motlakase tse tšoanang li utloisisoa, sesebelisoa se loketseng ka ho fetesisa se ka khethoa bakeng sa ts'ebeliso e itseng.Ho fumana sesebelisoa se loketseng ka ho fetisisa, ho molemo ho nahana ka litšupiso tsa letoto le tse tšoanang.Hang ha li-parameter tsa mefuta ena ka bobeli li se li baloa ka ho khetheha, mofuta oa sesebelisoa o ka khethoa 'me mekhoa e meng ea matla e fanoa mona.
- Haeba ho hlokahala bonnete ba pele bo kaholimo ho 0.1% le tekanyo ea mocheso ea 25ppm, ho lokela hore ho khethoe referense ea mofuta oa motlakase ka kakaretso.
- Haeba ho hlokahala hore ho sebelisoe motlakase o tlaase ka ho fetisisa, joale ho lokela ho khethoa referense ea motlakase e tšoanang.
- Tlhokomelo e tlameha ho nkuoa ha ho sebelisoa litšupiso tsa motlakase tse tšoanang tse nang le li-voltage tse pharalletseng kapa meroalo e meholo e matla.Etsa bonnete ba hore u bala boleng bo lebelletsoeng ba matla a felisitsoeng, a ka bang holimo haholo ho feta litšupiso tsa "voltage" tse nang le ts'ebetso e ts'oanang (sheba mohlala o ka tlase).
- Bakeng sa lits'ebetso moo motlakase oa phepelo o kaholimo ho 40V, referense ea motlakase e ts'oanang e ka ba eona feela khetho.
- Lits'oants'o tsa motlakase o tšoanang hangata li nahanoa ha ho hahuoa lilaoli tse mpe tsa motlakase, lilaoli tsa fatše tse phaphametseng, li-circuits kapa li-circuits tse fokotsang.
Mabapi le Sehlahisoa
TL431LI / TL432LI ke mefuta e meng ea pin-to-pin ho feta TL431 / TL432.TL43xLI e fana ka botsitso bo betere, mocheso o tlase oa mocheso (VI(dev)), le litšupiso tse tlase (Iref) bakeng sa ho nepahala ha sistimi.
Lisebelisoa tsa TL431 le TL432 ke li-terminal tse tharo tse fetolehang tsa shunt, tse nang le botsitso bo itseng ba mocheso holim'a mocheso o sebetsang oa likoloi, oa khoebo le oa sesole.Motlakase oa motlakase o ka behoa ho boleng leha e le bofe pakeng tsa Vref (hoo e ka bang 2.5 V) le 36 V, e nang le lihanyetsi tse peli tse ka ntle.Lisebelisoa tsena li na le ts'ebetso e tloaelehileng ea tlhahiso ea 0.2 Ω.Active output circuitry e fana ka tšobotsi e matla haholo ea ho bulela, e etsa hore lisebelisoa tsena li nkele sebaka se setle bakeng sa diode tsa Zener lits'ebetsong tse ngata, joalo ka taolo ea onboard, phepelo ea motlakase e feto-fetohang, le phepelo ea motlakase e fetohang.Sesebelisoa sa TL432 se na le ts'ebetso e ts'oanang hantle le lintlha tsa motlakase joalo ka sesebelisoa sa TL431, empa se na le li-pinouts tse fapaneng bakeng sa liphutheloana tsa DBV, DBZ, le PK.
Lisebelisoa tsa TL431 le TL432 ka bobeli li fanoa ka limaraka tse tharo, ka mamello ea pele (ho 25°C) ea 0.5%, 1%, le 2%, bakeng sa B, A, le kereiti e tloaelehileng, ka ho latellana.Ho feta moo, ho hoholeha ho tlase ho bapisoa le mocheso ho netefatsa botsitso bo botle holim'a mefuta eohle ea mocheso.
Lisebelisoa tsa TL43xxC li khetholloa bakeng sa ts'ebetso ho tloha ho 0 ° C ho ea ho 70 ° C, lisebelisoa tsa TL43xxI li khetholloa bakeng sa ts'ebetso ho tloha -40 ° C ho ea ho 85 ° C, 'me lisebelisoa tsa TL43xxQ li khetholloa ho sebetsa ho tloha -40 ° C ho ea ho 125 ° C. .
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