Sabon Asali LM25118Q1MH/NOPB Haɗin Kai Tsaye IC REG CTRLR BUCK 20TSSOP Ic Chip LM25118Q1MH/NOPB
Halayen Samfur
| TYPE | BAYANI |
| Kashi | Haɗin kai (ICs) Masu Gudanar da Wutar Lantarki - DC DC Masu Gudanar da Canjawa |
| Mfr | Texas Instruments |
| Jerin | Mota, AEC-Q100 |
| Kunshin | Tube |
| SPQ | 73 Tube |
| Matsayin samfur | Mai aiki |
| Nau'in fitarwa | Direban transistor |
| Aiki | Mataki-Uba, Mataki-ƙasa |
| Kanfigareshan fitarwa | M |
| Topology | Buck, Boost |
| Adadin abubuwan da aka fitar | 1 |
| Matsayin fitarwa | 1 |
| Ƙarfin wutar lantarki - Kayan aiki (Vcc/Vdd) | 3V ~ 42 |
| Mitar - Canjawa | Har zuwa 500kHz |
| Zagayen Ayyuka (Max) | 75% |
| Mai gyara aiki tare | No |
| Agogo Daidaita | Ee |
| Serial Interfaces | - |
| Siffofin sarrafawa | Kunna, Ikon mita, Ramp, Fara mai laushi |
| Yanayin Aiki | -40°C ~ 125°C (TJ) |
| Nau'in hawa | Dutsen Surface |
| Kunshin / Case | 20-PowerTSSOP (0.173", Nisa 4.40mm) |
| Kunshin Na'urar Mai bayarwa | 20-HTSSOP |
| Lambar Samfurin Tushen | Saukewa: LM25118 |
1. Haɗa kai
Amfani.
Babban inganci: juriya na ciki na bututun mos yana da ƙanƙanta sosai kuma raguwar ƙarfin lantarki a kan-jihar ya fi ƙanƙanta fiye da digowar wutar lantarki na Cosmos na Schottky diode.
Rashin amfani.
Rashin isasshen kwanciyar hankali: buƙatar zayyana da'irar tuƙi, da kuma guje wa bututu na sama da na ƙasa a lokaci guda, kewayawa ya fi rikitarwa, yana haifar da ƙarancin kwanciyar hankali.
2. tsabar kudi mara daidaituwa
Amfani.
Ƙarfin ƙarfin aiki: Drugwar wutar lantarki na Schottky diode babba ne, dangane da yawan wutar lantarki da mos tube ke samarwa.
Rashin amfani.
Babban kwanciyar hankali: ba za a sami tafiyar lokaci guda na manyan bututu da na ƙasa ba.
1: PFM (hanyar daidaita mitar bugun jini)
Sauyawa bugun bugun jini ya tabbata, ta hanyar canza mitar fitarwar bugun jini, ƙarfin fitarwa yana daidaitawa.nau'in sarrafawa yana da amfani da ƙananan amfani da wutar lantarki ko da lokacin amfani da shi na dogon lokaci, musamman a ƙananan kaya.
2: PWM (Pulse Width Modulation)
Nau'in sarrafawa na PWM yana da inganci sosai kuma yana da ingantaccen ƙarfin wutar lantarki da hayaniya.
Don taƙaitawa: Gabaɗaya, bambance-bambancen aiki tsakanin masu canza DC-DC tare da hanyoyin daidaitawa daban-daban guda biyu, PFM da PWM, sune kamar haka.
Mitar PWM, Hanyar zaɓin aikin sake zagayowar PFM.PWM/PFM nau'in jujjuyawar PFM iko a ƙananan kaya da sauyawa ta atomatik zuwa sarrafa PWM a nauyi mai nauyi.
3.
Menene bambanci tsakanin haɓaka haɓaka ICs da haɓaka haɓakar asynchronous ICs?
Babban bambanci tsakanin haɓaka ICs na aiki tare da haɓakawa asynchronous shine bambanci a hanyoyin gyarawa.
The synchronous boost IC circuit yana amfani da MOS saboda MOS tubes da musamman low ciki juriya a cikin bude jihar da kuma asarar a cikin gyara tsari ne musamman low, don haka yadda ya dace da synchronous haɓaka yana da girma da zafi tsara ne low.Ana iya amfani da shi don aikace-aikacen haɓaka mai ƙarfi.
Asynchronous boost IC kewaye suna amfani da diodes don gyarawa.Diodes suna da junction ƙarfin lantarki a cikin aikin gyarawa.Mafi girman halin yanzu a cikin tsarin gyarawa, mafi girman hasara.Yawancin lokaci, ikon ba zai iya zama babban iko ba.
