thepa thepa:
| MOFUTA | HLALISA |
| sehlopha | Potoloho e Kopanetsoeng (IC) PMIC - Voltage Regulators - DC DC Switching Regulators |
| moetsi | Lisebelisoa tsa Texas |
| letoto | - |
| Sephutheloana | Theipi le Reel (TR)Shear Band (CT)Digi-Reel® Custom Reel |
| boemo ba sehlahisoa | e teng thepeng e teng ka lebenkeleng |
| Mosebetsi | Buck |
| tlhophiso ya tlhahiso | feela |
| topology | Buck |
| mofuta oa tlhahiso | fetohang |
| Palo ea liphetho | 3 |
| Voltage - Kenyeletso (Mots) | 4.5V |
| Voltage - Kenyo (Boholo) | 18V |
| Voltage - Output (min/fixed) | 0.8V |
| Voltage - Output (Boholo) | 18V |
| Hajoale - Sephetho | 3A, 2A |
| Hangata - switjha | 300kHz ~ 2.2MHz |
| Synchronous Rectifier | Ee |
| Mocheso oa ho sebetsa | -40°C ~ 125°C (TJ) |
| mofuta oa ho kenya | Mofuta oa Mount Mount |
| Sephutheloana/Sekoahelo | 40-VFQFN Ped e pepesitsoeng |
| Sephutheloana sa Sesebelisoa sa Bafani | 40-VQFN (6x6) |
| Nomoro ea mantlha ea sehlahisoa | TPS65251 |
Boemo ba Tikoloho le Thomelontle:
| LITŠOANTŠISO | HLALISA |
| Boemo ba RoHS | E lumellana le litlhaloso tsa ROHS3 |
| Boemo ba Sensitivity ea Mongobo (MSL) | 3 (lihora tse 168) |
| FIHLELA boemo | Lihlahisoa tse sa fihlelleheng |
| ECCN | TSEBE99 |
| HTSUS | 8542.39.0001 |
TPS65251 4.5-V to 18-V Input, High-Hajoale, Synchronous Step-down Three Buck
Switcher Ka FET e Kopanetsoeng
1
1 Likarolo
1
•
Phaello e Felletseng ea Phepelo ea Motlakase (4.5 ho isa ho 18 V)
•
0.8 V, 1% Tšebeliso e nepahetseng
•
Continuous Loading: 3 A (Buck 1),
2 A (Buck 2 le 3)
•
Boholo ba Hona Joale: 3.5 A (Buck 1),
2.5 A (Buck 2 le 3)
•
Maqhubu a Fetohang a Fetohang
300 kHz ho isa ho 2.2 MHz E behiloe ke Mohanyetsi oa Kantle
•
E inehetseng e nolofalletsa bakeng sa Buck ka 'ngoe
•
Pin ea Kantle ea Kamahanyo bakeng sa Oscillator
•
Ka ntle Noble/Sequencing le Soft-Start Pins
•
Moeli o Fetohang oa Hona Joale o Behiloeng ke Mohanyetsi oa Kantle
•
Lithako tsa Soft-Start
•
Taolo ea Mokhoa oa Hona Joale Ka Matšeliso a Bonolo
Potoloho
•
Powergood
•
Boikhethelo ba Mokhoa o Tlase oa Matla bakeng sa Leseli
Meroalo
•
VQFN Package, 40-Pin 6 mm × 6 mm RHA
2 Likopo
•
Beha Top Mabokose
•
DVD ea Blu-ray
•
DVR
•
DTV
•
Audio / Video ea Koloi
•
Khamera ea Tšireletso
3 Tlhaloso
TPS65251 e na le likarolo tse tharo tse lumellanang ka bophara
mefuta e mengata ea li-converter tse sebetsang hantle haholo.The
li-converter li etselitsoe ho nolofatsa ts'ebeliso ea eona
ha a ntse a fa moqapi khetho ea ho ntlafatsa bona
tšebeliso ho latela sepheo sa ts'ebeliso.
Li-converter li ka sebetsa ka 5-, 9-, 12- kapa 15-V
litsamaiso 'me li na le li-transistors tsa motlakase tse kopaneng.The
motlakase o hlahisoang o ka behoa ka ntle ho sebelisoa khanyetso
divider ho boleng bofe kapa bofe pakeng tsa 0.8 V le haufi le
phepelo ea ho kenya.E 'ngoe le e' ngoe ea li-converter e na le likarolo tse nolofalletsang pin hore
e lumella ho lieha ho qala ka sepheo sa tatellano,
soft-start pin e lumellang hore nako ea ho qala ka bonolo e feto-fetohe ka
ho khetha capacitor e qalang e bonolo, le moeli oa hona joale
(RLIMx) pin e nolofalletsang moqapi ho fetola hona joale
moeli ka ho khetha mohanyetsi oa kantle le ho ntlafatsa
khetho ea inductor.Taolo ea mokhoa oa hajoale e lumella a
matšeliso a bonolo a RC.
Ho fetoha ha li-converter ho ka ba teng
e behiloe ka sehanyetsi sa kantle se amanang le ROSC
pin kapa e ka amahanngoa le oache e kantle
e hokahane le phini ea SYNC ha ho hlokahala.The switching
balaoli li etselitsoe ho sebetsa ho tloha 300 kHz ho
2.2 MHz.180 ° kantle ho ts'ebetso ea mohato lipakeng tsa Buck
1 le Buck 2, 3 (Buck 2 le 3 li matha ka mohato)
e fokotsa litlhoko tsa filthara ea ho kenya.
