Moteur de recherche de fiches techniques de composants électroniques |
|
LTC4088-1 Fiches technique(PDF) 1 Page - Linear Technology |
|
LTC4088-1 Fiches technique(HTML) 1 Page - Linear Technology |
1 / 24 page LTC4088-1/LTC4088-2 1 40881fb High Efficiency Battery Charger/USB Power Manager with Regulated Output Voltage The LTC®4088-1/LTC4088-2 is a high efficiency USB PowerPathTM controller and Li-Ion/Polymer battery charger. It includes a synchronous switching input regu- lator, a full-featured battery charger and an ideal diode. Designed specifically for USB applications, the LTC4088-1/LTC4088-2’s switching regulator auto- matically limits its input current to either 100mA, 500mA or 1A via logic control. The LTC4088-1 powers-up with the charger off; the LTC4088-2 powers-up with the charger on. The switching input stage provides power to VOUT where power sharing between the application circuit and the battery charger is managed. Charge current is automati- cally reduced to maintain a regulated 3.6V VOUT during low-battery conditions. As the battery is charged, VOUT tracks VBAT for high efficiency charging. This feature al- lows the LTC4088-1/LTC4088-2 to provide more power to the application and eases thermal issues in constrained applications. An ideal diode ensures that system power is available from the battery when the input current limit is reached or if the USB or wall supply is removed. The LTC4088-1/LTC4088-2 is available in the low profile 14-Lead 4mm × 3mm × 0.75mm DFN surface mount package. n Media Players n Digital Cameras n GPS n PDAs n Smart Phones n Switching Regulator Makes Optimal Use of Limited Power Available from USB Port to Charge Battery and Power Application n 180mΩ Internal Ideal Diode Plus External Ideal Diode Controller Seamlessly Provide Low Loss Power Path When Input Power is Limited or Unavailable n Automatic Charge Current Reduction Maintains 3.6V Minimum VOUT n Full Featured Li-Ion/Polymer Battery Charger n VBUS Operating Range: 4.25V to 5.5V (7V Absolute Maximum—Transient) n 1.2A Maximum Input Current Limit n 1.5A Maximum Charge Current with Thermal Limiting n Bat-TrackTM Adaptive Output Control n Slew Control Reduces Switching EMI n Low Profile (0.75mm)14-Lead 4mm × 3mm DFN Package High Efficiency Battery Charger/USB Power Manager APPLICATIO S FEATURES DESCRIPTIO TYPICAL APPLICATIO , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. PowerPath and Bat-Track are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 6522118 Switching Regulator Efficiency to System Load (POUT/PBUS) IOUT (A) 0.01 0 20 40 60 80 0.1 1 408812 TA01b 100 10 30 50 70 90 BAT = 4.2V BAT = 3.3V VBUS = 5V IBAT = 0mA 10x MODE VBUS VOUT 10µF WALL USB 0.1µF 10µF SYSTEM LOAD 2.94k 499Ω 408812 TA01a CLPROG 8.2Ω PROG LTC4088-1/LTC4088-2 C/X GND SW 3.3µH NTC D0 D1 D2 CHRG VOUTS GATE BAT + Li-Ion |
Numéro de pièce similaire - LTC4088-1 |
|
Description similaire - LTC4088-1 |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |