TPS65251RHAR Ukutshintshela iVoltage Regulators PMU ene-3 DC/DC Converters
♠ Inkcazo yeMveliso
| Uphawu lweMveliso | Ixabiso lophawu |
| Umenzi: | Texas Instruments |
| Udidi lweMveliso: | Ukutshintsha i-Voltage Regulators |
| RoHS: | Iinkcukacha |
| Isimbo sokuNqamisa: | SMD/SMT |
| Umqulu / Ityala: | VQFN-40 |
| I-Topology: | Buck |
| Umbane ophumayo: | 800 mV ukuya kwi-17 V |
| Imveliso yangoku: | 3 A |
| Inani leZiphumo: | 3 Isiphumo |
| Igalelo loMbane, uMz: | 4.5 V |
| Igalelo lombane, Ubukhulu: | 18V |
| I-Quiscent yangoku: | 1 mA |
| Ukutshintsha iFrequency: | 300 kHz ukuya 2.2 MHz |
| Ubuncinci bobushushu bokusebenza: | - 40 C |
| Obona bushushu bokusebenza: | + 125 C |
| Uthotho: | TPS65251 |
| Ukupakishwa: | I-Reel |
| Ukupakishwa: | Sika iTape |
| Ukupakishwa: | MouseReel |
| Uphawu: | Texas Instruments |
| Ikhithi yoPhuhliso: | I-TPS65251EVM |
| Igalelo lamandla ombane: | 4.5 V ukuya kwi-18 V |
| Ukungevani kukufuma: | Ewe |
| Ubonelelo oluSebenzayo lwangoku: | 20 mA |
| Uhlobo lweMveliso: | Ukutshintsha i-Voltage Regulators |
| Ubungakanani bePakethi yoMzi-mveliso: | 2500 |
| Uluhlu olungaphantsi: | I-PMIC - ii-ICs zoLawulo lwaMandla |
| Ubunzima beyunithi: | 0.003527 oz |
♠ TPS65251 4.5-V ukuya 18-V Igalelo, High-yangoku, Synchronous Inyathelo-Ezantsi iBuck Switcher eZithathu ezineFET eDityanisiweyo.
I-TPS65251 ineenguqu ezintathu ezibanzi ezihambelanayo ezinoluhlu oluphezulu lweziguquli ezisebenzayo.Abaguquli benzelwe ukwenza lula isicelo sabo ngelixa benika umyili ukhetho lokuphucula ukusetyenziswa kwabo ngokwesicelo ekujoliswe kuso.
Abaguquli banokusebenza kwiinkqubo ze-5-, 9-, 12- okanye i-15-V kwaye babe ne-transistors yamandla edibeneyo.I-voltage ephumayo inokusekwa ngaphandle usebenzisa i-resistor divider kulo naliphi na ixabiso phakathi kwe-0.8 V kwaye isondele kwi-input supply.Iimpawu zesiguquli ngasinye zenza iphini elivumela ukulibaziseka kokuqalisa ngeenjongo zolandelelwano, isikhonkwane sokuqalisa esithambileyo esivumela ixesha lokuqalisa elithambileyo ngokukhetha i-capacitor ethambileyo, kunye nomda wangoku (RLIMx) iphini eyenza umyili alungelelanise umda wangoku. ngokukhetha i-resistor yangaphandle kunye nokwandisa ukhetho lwe-inductor.Ulawulo lwemowudi yangoku luvumela imbuyekezo yeRC elula.
I-frequency switching frequency of converters inokuthi ibekwe kunye ne-resistor yangaphandle exhunywe kwi-ROSC pin okanye inokulungelelaniswa kwiwotshi yangaphandle exhunywe kwi-SYNC pin xa ifuneka.Izilawuli zokutshintsha zenzelwe ukusebenza ukusuka kwi-300 kHz ukuya kwi-2.2 MHz.I-180 ° ngaphandle kokusebenza kwesigaba phakathi kweBuck 1 kunye neBuck 2, 3 (I-Buck 2 kunye ne-3 iqhutywe kwisigaba) inciphisa iimfuno zokucoca igalelo.
• UBonelelo oluBanzi loLuhlu lweVolthage (4.5 ukuya kwi-18 V)
• 0.8 V, 1% iReferensi yokuChaneka
• Ukulayisha ngokuqhubekayo: 3 A (Buck 1), 2 A (Buck 2 kunye no-3)
• Ubuninzi bangoku: 3.5 A (Buck 1), 2.5 A (Buck 2 kunye no-3)
• I-Adjustable Switching Frequency 300 kHz ukuya kwi-2.2 MHz iSetelwe yi-External Resistor
• Ukuzinikela okuVuselekileyo kwiBhanti nganye
• I-Pin yoNgqamaniso yaNgaphandle ye-Oscillator
• IZikhonkwane zaNgaphandle zokuSebenza/Ulandelelwano kunye neSoft-Start
• Umda olungelelanisiweyo wangoku oSekwe yi-External Resistor
• Izikhonkwane zokuQala ezithambileyo
• Ulawulo lweMowudi yangoku eneSekethe yeMbuyekezo elula
• I-Powergood
• UkuSebenza okuKhethekileyo kweNdlela yoMbane waMandla aPhantsi kuMthwalo woKhanya
• Iphakheji ye-VQFN, i-40-Pin 6 mm × 6 mm RHA
• Seta iibhokisi eziphezulu
• IDVD yeBlu-ray
• DVR • DTV
• Iaudio yemoto/iVidiyo
• Ikhamera yoKhuseleko
