Iimveliso

TPS65251RHAR (Impahla entsha kunye neyoqobo 100000)

Inkcazelo emfutshane:

Umenzi:Texas Instruments

Inombolo yemveliso yomvelisi: TPS65251RHAR

Chaza: IC REG BCK ADJ 3A/2A TRPL 40VQFN

Ixesha lonikezelo lomgangatho womzi-mveliso wokuqala: iiveki ezingama-35

Inkcazo eneenkcukacha: IBuck Switching Regulator IC Positive Adjustable 0.8V 3 Outputs 3A, 2A 40-VFQFN Exposed Pad


Iinkcukacha zeMveliso

Iithegi zeMveliso

iimpawu zemveliso:

UHLOBO CHAZA
udidi ISekethe eDityanisiweyo (IC)  I-PMIC - i-Voltage Regulators - i-DC DC Switching Regulators
umenzi Texas Instruments
uthotho -
Iphakheji Iteyiphu kunye neReel (TR)Shear Band (CT)I-Digi-Reel® Custom Reel
ubume bemveliso ikhona evenkileni
Umsebenzi Buck
uqwalaselo lwemveliso nje
itopology Buck
uhlobo lwemveliso iyahlengahlengiswa
Inani leziphumo 3
I-Voltage-Igalelo (uMzu) 4.5V
I-Voltage-Input (Ubukhulu) 18V
Umbane-Imveliso (min/elungisiweyo) 0.8V
Voltage-Imveliso (Eyona iphezulu) 18V
Okwangoku -Isiphumo 3A, 2A
Ukuphindaphinda - tshintsha 300kHz ~ 2.2MHz
Ungqamaniso loLungisanisi Ewe
Ubushushu bokusebenza -40°C ~ 125°C (TJ)
uhlobo lofakelo Uhlobo lweNtaba yoMphezulu
Ipakethe/Indawo ebiyelweyo I-40-VFQFN eveziweyo yePad
Supplier Device Packaging 40-VQFN (6x6)
Inombolo yemveliso esisiseko TPS65251

Ulwahlulo lokusiNgqongileyo kunye noThunyelo ngaphandle:

IIMPAWU CHAZA
Ubume beRoHS Iyahambelana neenkcukacha ze-ROHS3
iNqanaba lokuSenza ukufuma (MSL) 3 (168 iiyure)
FIKA ubume Iimveliso ezinga-REACH
ECCN I-EAR99
HTSUS 8542.39.0001

TPS65251 4.5-V ukuya 18-V Igalelo, High-yangoku, Synchronous Inyathelo-Phantsi iBuck ezintathu
Ukutshintshela kunye ne-FET eDityanisiweyo
1
1 Iimpawu
1

Uluhlu oluBanzi loBonelelo lwe-Voltage (4.5 ukuya kwi-18 V)

0.8 V, 1% Ukuchaneka kweReferensi

Ukulayisha ngokuqhubekayo: 3 A (Buck 1),
2 A (iBuck 2 kunye nesi-3)

Ubuninzi bangoku: 3.5 A (Buck 1),
2.5 A (iBuck 2 kunye ne-3)

I-Adjustable Switching Frequency
I-300 kHz ukuya kwi-2.2 MHz Isetwe nguMxhasi Wangaphandle

Ezinikezelweyo zisebenze ngeBhaka nganye

Iphini yoNgqamaniso yaNgaphandle yeOscillator

Yangaphandle Yenza / Ulandelelwano kunye nezikhonkwane zokuQala ezithambileyo

Umda Wangoku Onohlengahlengiswayo Osekwe NguMxhasi Wangaphandle

Izikhonkwane zokuQala ezithambileyo

Ulawulo Lwemo Yangoku Ngembuyekezo elula
Isekethe

Powergood

UkuSebenza okuKhethekileyo kweModi yoMbane oPhantsi woKhanya
Imithwalo

Iphakheji ye-VQFN, i-40-Pin 6 mm × 6 mm RHA
2 izicelo

Cwangcisa Iibhokisi eziphezulu

IDVD yeBlu-ray

DVR

DTV

Umsindo wemoto/iVidiyo

Ikhamera yoKhuseleko
3 Inkcazo
I-TPS65251 ibonisa ububanzi obuyi-synchronous ezintathu
uluhlu lwegalelo eliphezulu abaguquli bebhaka abasebenzayo.I
iziguquli ziyilelwe ukwenza lula usetyenziso lwayo
ngelixa unika umyili ukhetho lokwandisa zabo
ukusetyenziswa ngokwenjongo yesicelo.
Abaguquleli banokusebenza kwi-5-, 9-, 12- okanye 15-V
iinkqubo kunye neetransistor zamandla ezidibeneyo.I
I-voltage yemveliso inokumiselwa ngaphandle usebenzisa i-resistor
isahluli kulo naliphi na ixabiso phakathi kwe-0.8 V kwaye isondele kwi
unikezelo lwegalelo.Isiguquli ngasinye senza ukuba iphini ibekho
ivumela ukuqalisa ukulibaziseka ngeenjongo zolandelelwano,
isikhonkwane sokuqalisa esithambileyo esivumela ixesha lokuqalisa elithambileyo elilungelelanisiweyo
ukukhetha i-capacitor ethambileyo, kunye nomda wangoku
(RLIMx) iphini elenza umyili alungelelanise okwangoku
umda ngokukhetha isichasi sangaphandle kunye nokwandisa i
ukhetho lwe-inductor.Ulawulo lwemowudi yangoku luvumela a
imbuyekezo RC elula.
Ukutshintsha rhoqo kwabaguquli banako nokuba
ibekwe kunye ne-resistor yangaphandle exhunywe kwi-ROSC
iphini okanye inokudityaniswa kwiwotshi yangaphandle
iqhagamshelwe kwi-SYNC pin ukuba iyafuneka.Ukutshintsha
abalawuli benzelwe ukusebenza ukusuka kwi-300 kHz ukuya
2.2 MHz.I-180 ° ngaphandle komsebenzi wesigaba phakathi kweBuck
1 kunye neBuck 2, 3 (iBuck 2 kunye ne-3 zibaleka kwisigaba)
inciphisa igalelo lokucoca iimfuno.


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