Sabis Tsaya Daya SON8 TPS7A8101QDRBRQ1 Tare da Asali Kuma Sabbin Chips na Lantarki na IC
Halayen Samfur
| TYPE | BAYANI |
| Kashi | Haɗin kai (ICs) |
| Mfr | Texas Instruments |
| Jerin | Mota, AEC-Q100 |
| Kunshin | Tape & Reel (TR) Yanke Tape (CT) Digi-Reel® |
| SPQ | 3000 T&R |
| Matsayin samfur | Mai aiki |
| Kanfigareshan fitarwa | M |
| Nau'in fitarwa | daidaitacce |
| Adadin Masu Gudanarwa | 1 |
| Wutar lantarki - Input (Max) | 6.5V |
| Voltage - Fitarwa (min / Kafaffen) | 0.8V |
| Wutar lantarki - Fitarwa (Max) | 6V |
| Fitar da wutar lantarki (Max) | 0.5V @ 1A |
| Yanzu - Fitowa | 1A |
| Yanzu - Quiescent (Iq) | 100 µA |
| Yanzu - Kayayyaki (Max) | 350 A |
| PSRR | 48dB ~ 38dB (100Hz ~ 1MHz) |
| Siffofin sarrafawa | Kunna |
| Siffofin Kariya | Sama da halin yanzu, kan zazzabi, baya polarity, a karkashin wutar lantarki (UVLA) |
| Yanayin Aiki | -40°C ~ 125°C (TJ) |
| Nau'in hawa | Dutsen Surface |
| Kunshin / Case | 8-VDFN fallasa Pad |
| Kunshin Na'urar Mai bayarwa | 8-SON (3x3) |
| Lambar Samfurin Tushen | Saukewa: TPS7A8101 |
LDO, ko ƙaramin mai sarrafa dropout, ƙaramin mai daidaitawa ne wanda ke amfani da transistor ko bututun tasirin filin (FET) da ke aiki a yankin saturation don cire wuce haddi mai ƙarfi daga ƙarfin shigarwar da aka yi amfani da shi don samar da ingantaccen ƙarfin fitarwa.
Manyan abubuwa guda hudu sune Dropout, Noise, Rejection Ratio (PSRR), da Quiescent Current Iq.
Babban abubuwan da aka gyara: farawa da'ira, naúrar son zuciya na yau da kullun na yanzu, kunna kewayawa, daidaitawa kashi, tushen tunani, amplifier kuskure, hanyar sadarwa mai jujjuya ra'ayi da kewayen kariya, da sauransu.
Ƙa'idar Aiki
Da'irar asali ta LDO ta ƙunshi jerin tsararrun VT, masu tsayayyar samfur R1 da R2, da amplifier A.
An kunna tsarin, idan fil ɗin mai kunnawa yana cikin babban matakin, kewayawa yana farawa, madaidaicin madauri na yau da kullun yana ba da ra'ayi ga duk kewaye, ana samun ƙarfin ƙarfin tushen abin da ake magana da shi da sauri, kuma ana amfani da ƙarfin shigarwar da ba a daidaita shi azaman ƙarfin lantarki ba. na samar da wutar lantarki, ana amfani da wutar lantarki mai tunani azaman ƙarancin shigar da wutar lantarki na kuskuren amplifier, cibiyar sadarwa ta resistor ta raba wutar lantarki ta fitarwa kuma ta sami ƙarfin ƙarfin amsawa, wannan ƙarfin ƙarfin martani yana shigar da shi zuwa tashar tashoshi ɗaya na kuskuren comparator, da korau Wannan irin ƙarfin lantarki na martani shine shigarwa zuwa gefen isotropic na mai kwatanta kuskure kuma idan aka kwatanta da ƙarancin ƙarfin magana mara kyau.Bambance-bambancen da ke tsakanin nau'ikan wutar lantarki guda biyu yana haɓaka ta hanyar amplifier kuskure don sarrafa ƙofar wutar lantarki kai tsaye, kuma ana sarrafa fitarwar LDO ta hanyar canza yanayin tafiyar da bututu mai daidaitawa, watau Vout = (R1 + R2)/ R2 × Vref
Haƙiƙanin ƙaƙƙarfan mai sarrafa layin layi shima yana da wasu ayyuka kamar ɗaukar gajeriyar kariyar kewayawa, rufewar wuta mai ƙarfi, rufewar thermal, kariyar haɗin kai, da sauransu.
Fa'idodi, rashin amfani, da matsayin halin yanzu
Low Dropout Voltage (LDO) masu daidaita layin layi ba su da tsada, ƙaramar amo, ƙarancin halin yanzu, ƴan abubuwan waje kaɗan, yawanci ɗaya ko biyu capacitors na kewayawa, kuma suna da ƙaramar amo da babban Ratio na Ƙimar Samar da Wuta (PSRR).LDO ƙaramin Tsari ne akan Chip (SoC) tare da ƙarancin amfani da kai.Ana iya amfani da shi don sarrafa babban tashar tashar ta yanzu kuma yana da haɗaɗɗun da'irori na kayan aiki kamar MOSFETs tare da ƙarancin in-line akan juriya, Schottky diodes, resistors samfuri, da masu rarraba wutar lantarki, kazalika da kariya ta yau da kullun, kariyar zafin jiki, Maɓuɓɓugan madaidaicin madaidaicin tushe, amplifiers daban-daban, masu jinkiri, da sauransu. PG sabon ƙarni ne na LDO tare da gwajin kansa ga kowane jihar fitarwa da jinkirin samar da wutar lantarki mai aminci, wanda kuma ana iya kiransa Power Good, watau “ƙararfin ƙarfi ko kwanciyar hankali” .Yawancin LDOs suna buƙatar capacitor ɗaya kawai a shigarwar kuma ɗaya a wurin fitarwa don ingantaccen aiki.
Sabbin LDOs na iya cimma waɗannan ƙayyadaddun bayanai: ƙarar fitarwa na 30µV, PSRR na 60dB, quiescent halin yanzu na 6µA, da juzu'in ƙarfin lantarki na 100mV kawai.Babban dalilin wannan ingantacciyar aikin masu kula da layin LDO shine cewa mai sarrafa na'urar da aka yi amfani da ita shine MOSFET ta P-channel, wanda ke motsa wutar lantarki kuma yana buƙatar babu halin yanzu, yana rage halin yanzu da na'urar kanta ke cinyewa da raguwar ƙarfin lantarki a cikinsa.digo ya yi kusan daidai da samfurin abin da ake fitarwa a halin yanzu da na kan-juriya.Juyin wutar lantarki a cikin MOSFET yayi ƙasa sosai saboda ƙarancin juriya.Masu tsara layin gama gari suna amfani da transistor PNP.A cikin da'irori tare da transistor PNP, raguwar ƙarfin lantarki tsakanin shigarwa da fitarwa dole ne ya zama ƙasa da ƙasa don hana transistor PNP shiga cikin jikewa da rage ƙarfin fitarwa.
