SN74CB3Q3245RGYR 100% e Ncha le ea Pele ea DC Ho ea ho DC Converter & Switching Regulator Chip
Litšobotsi tsa Sehlahisoa
| MOFUTA | TS'OANELO |
| sehlopha | Signal switcher, multiplexer, decoder |
| moetsi | Lisebelisoa tsa Texas |
| letoto | 74CB |
| thatela | Liphutheloana tsa theipi le rolling (TR) Sephutheloana sa theipi ea insulating (CT) Digi-Reel® |
| Boemo ba sehlahisoa | E sebetsa |
| mofuta | Phetoho ea libese |
| potoloho | 8 x 1:1 |
| Potoloho e ikemetseng | 1 |
| Hajoale - Sephetho se phahameng, se tlase | - |
| Mohloli oa phepelo ea motlakase | Motlakase o le mong |
| Voltage - Phepelo ea motlakase | 2.3V ~ 3.6V |
| Mocheso oa ho sebetsa | -40°C ~ 85°C |
| Mofuta oa ho kenya | Mofuta oa sekhomaretsi sa bokaholimo |
| Sephutheloana/Ntlo | 20-VFQFN pad e pepesitsoeng |
| Morekisi karolo encapsulation | 20-VQFN (3.5x4.5) |
| Nomoro e kholo ea sehlahisoa | 74CB3Q3245 |
Kenyelletso ea Sehlahisoa
SN74CB3Q3245 ke sesebelisoa sa libese sa FET se phahameng ka ho fetesisa se sebelisang pompo ea ho tjhaja ho phahamisa motlakase oa heke ea transistor ea pass, e fanang ka khanyetso e tlase le e bataletseng ea ON-state (ron).Khanyetso e tlase le e bataletseng ea ON-state e lumella tieho e fokolang ea phatlalatso mme e ts'ehetsa ho fetoha ha seporo ho isa ho seporo likoung tsa data input/output (I/O).Sesebelisoa se boetse se na le matla a tlase a data ea I / O ho fokotsa capacitive loading le ho sotha pontšo ka bese ea data.SN74CB3Q3245 e etselitsoe ho ts'ehetsa lits'ebetso tse phahameng tsa bandwidth, e fana ka tharollo e ntlafalitsoeng ea sehokelo se loketseng likhokahano tsa marang-rang, marang-rang le lits'ebetso tsa khomphutha tse matla haholo.
SN74CB3Q3245 e hlophisitsoe joalo ka sesebelisoa sa libese sa 8-bit se nang le sephetho se le seng se nolofalletsang tlhahiso (OE\).Ha OE\ e le tlase, sesebelisoa sa libese se ON mme boema-kepe ba A bo hokahane le boema-kepe ba B, bo lumellang hore data e tsamaee lipakeng tsa likou.Ha OE\ e phahame, sesebelisoa sa libese se TLOhile 'me boemo bo phahameng ba ho itšireletsa bo teng lipakeng tsa A le B.
Sesebediswa sena se hlalositsoe ka botlalo bakeng sa lits'ebetso tsa ho theola matla a itseng ho sebelisa Ioff.Ioff circuitry e thibela tšenyo ea morao-rao ea morao-rao ka sesebelisoa ha e theohile.Sesebelisoa se na le ho itšehla thajana nakong ea ho tima motlakase.
Ho etsa bonnete ba hore boemo bo phahameng ba ho thibela matla nakong ea matla a ho nyoloha kapa ho theoha, OE \ e lokela ho tlamelloa ho VCC ka mochine o thibelang ho hula;boleng bo fokolang ba mohanyetsi bo khethoa ke bokhoni ba hona joale ba ho teba ba mokhanni.
Likarolo tsa Sehlahisoa
- Tsela ea Data e Phahameng ka ho Fetisisa (Ho fihla ho 500 MHz↑)
- E lekana le IDTQS3VH384 Sesebelisoa
- Li-I/O tse Mamellehang tsa 5-V tse nang le Sesebelisoa se Matlafalitsoeng kapa se Matlafalitsoeng
- Litlhaloso tse Tlase le tse Sephara ON-State Resistance (ron) Litšobotsi Tse Fetang Sebaka sa Ts'ebetso (ron = 4ΩTe tloaelehileng)
- Ho Fetolela Seporo ho ea ho Seporo ho Lintlha tsa I/O PortsBidirectional Data Phallo, ka Tieho ea Phatlalatso e Haufi le ZeroBokhoni bo Tlase ba Kenyeletso/Sehlahisoa bo Fokotsa ho Khopamisoa le Matšoao a Tlaase (Cio(OFF) = 3.5 pF Tloaelehileng)
- 0- ho 5-V Ho Fetola Ka 3.3-V VCC
- 0- ho 3.3-V Ho Fetola Ka 2.5-V VCC
- Maqhubu a ho Fetola ka Potlako (fOE\ = 20 MHz Max)
- Lintlha le Lisebelisoa tsa Taolo li Fana ka li-Undershoot Clamp Diode
- Tšebeliso e Tlase ea Matla (ICC = 1 mA Tloaelehileng)
- VCC Operating Range From 2.3 V ho 3.6 V
- Data I/Os Tšehetso 0 ho 5-V Maemo a Matšoao (0.8-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, 5-V)
- Litlhahiso tsa Taolo li ka tsamaisoa ke TTL kapa 5-V/3.3-V CMOS Outputs
- Ioff e ts'ehetsa ts'ebetso ea Mokhoa o sa Feleng oa Matla-Down
- Ts'ebetso ea Latch-Up e Feta 100 mA Ka JESD 78, Sehlopha sa II
- Ts'ebetso ea ESD e Lekoa ka JESD 22E ts'ehetsa Likopo tse peli tsa Digital le Analog: PCI Interface, Differential Signal Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating
- 2000-V Mohlala oa 'Mele oa Motho (A114-B, Sehlopha sa II)
- 1000-V Moetso oa Sesebelisoa se Chesitsoeng (C101)
Melemo ea Sehlahisoa
- tsamaiso ea mocheso le tšireletso ea overvoltage
Taolo ea mocheso ke phephetso e 'ngoe e kholo bakeng sa baqapi ba tjhaja ea betri.Chaja e 'ngoe le e 'ngoe e na le ho theoha ha motlakase nakong ea ho tjhaja ka lebaka la ho qhalana ha mocheso.Ho qoba ho senyeha ha betri kapa ho tima sistimi, lichaja tse ngata li sebelisa mokhoa o itseng oa ho laola ho laola mocheso.Lisebelisoa tse ncha li sebelisa mekhoa e tsoetseng pele ea ho fana ka maikutlo ho tsoela pele ho beha leihlo mocheso o shoang le ho fetola tefiso ea hona joale ka matla kapa ka lipalo ka sekhahla se lekanang le phetoho ea mocheso o tikolohong.Bohlale bona bo hahelletsoeng ka hare bo lumella chip ea tjhaja ea hajoale hore butle-butle e fokotse lebelo la ho tjhaja ho fihlela tekano ea mocheso e fihla 'me mocheso oa mocheso o emisa ho nyoloha.Theknoloji ena e lumella tjhaja hore e tswelle ho tjhaja betri ka bongata bo kgonehang ha jwale ntle le ho etsa hore sistimi e time, mme ka hona e fokotsa nako ya ho tjhaja betri.Lisebelisoa tse ngata tse ncha kajeno le tsona li tla eketsa mokhoa oa ts'ireletso ea overvoltage.
Chaja BQ25616JRTWR e fana ka likarolo tse fapaneng tsa ts'ireletso bakeng sa ho tjhaja betri le ts'ebetso ea sistimi, ho kenyeletsoa tlhahlobo ea mocheso o tlase oa mocheso oa betri, nako ea ts'ireletso ea ho tjhaja le ts'ireletso e feteletseng le ts'ireletso ea hajoale.Taolo ea mocheso e fokotsa tefiso ea hajoale ha mocheso oa mateano o feta 110 ° C.Sephetho sa STAT se tlaleha boemo ba ho tjhaja le maemo afe kapa afe a phoso.
Maemo a Kopo
Chip ea tjhaja ea betri ke ea mofuta oa chip ea taolo ea matla, mefuta ea ts'ebeliso e pharaletse haholo.Nts'etsopele ea li-chips tsa taolo ea matla ke ea bohlokoa bakeng sa ho ntlafatsa ts'ebetso ea mochini oohle, khetho ea li-chips tsa taolo ea matla e amana ka kotloloho le litlhoko tsa sistimi, ha nts'etsopele ea lisebelisoa tsa taolo ea matla a dijithale e ntse e hloka ho tšela mokoallo oa litšenyehelo.
BQ25616/616J ke sesebelisoa se kopantsoeng haholo sa 3-A switch-mode charger charge le sesebelisoa sa taolo ea matla a sistimi bakeng sa betri e le 'ngoe ea Li-Ion le Li-polymer.Tharollo e kopantsoe haholo le FET (RBFET, Q1), FET ea mahlakoreng a holimo (HSFET, Q2), FET (LSFET, Q3), le betri FET (BATFET, Q4) pakeng tsa sistimi le betri.Tsela e tlase ea matla a motlakase e ntlafatsa ts'ebetso ea switch-mode, e fokotsa nako ea ho tjhaja betri mme e eketsa nako ea ho sebetsa ha betri nakong ea ho tjhaja.
BQ25616/616J ke sesebelisoa se kopantsoeng haholo sa 3-A switch-mode charger charge le sesebelisoa sa taolo ea Power Path bakeng sa libeteri tsa Li-ion le Li-polymer.E na le ho tjhaja ka potlako e nang le tshehetso e phahameng ya motlakase bakeng sa ditshebediso tse fapaneng ho kenyeletswa dibui, diindasteri le disebediswa tse nkehang tsa bongaka.Tsela ea eona ea matla a tlase e ntlafatsa ts'ebetso ea switch-mode, e fokotsa nako ea ho tjhaja betri, 'me e eketsa nako ea betri nakong ea ho tjhaja.Matla a eona a ho kenya letsoho le taolo ea hajoale e fana ka matla a phahameng a ho tjhaja betri.
Tharollo e kopantsoe haholo le FET (RBFET, Q1), FET ea mahlakoreng a holimo (HSFET, Q2), FET (LSFET, Q3), le betri FET (BATFET, Q4) pakeng tsa sistimi le betri.E boetse e kenyelletsa diode ea bootstrap bakeng sa drive ea heke e lehlakoreng le holimo bakeng sa moralo o bonolo oa sistimi.Boemo ba hardware le tlaleho ea boemo bo fana ka tlhophiso e bonolo ho theha tharollo ea ho tjhaja.
