 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LP78071 Datasheet(PDF) 1 Page - Lowpower Semiconductor inc |
|
|
|||||||||||||||||||||||||||||
LP78071 Datasheet(HTML) 1 Page - Lowpower Semiconductor inc |
|
|
1 / 16 page  Preliminary Datasheet LP78071 LP78071 – 00 Version 1.0 Feb.-2014 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 1 of 16 1A Charge+ 1.5A Synchronous Boost PMIC General Description The LP78071 is a PMIC，which has 1ch Charger and 1ch Synchronous Boost Converter with ESOP-8 and TDFN10 package. Its charger is a complete constant-current constant voltage linear charger for single cell lithium-ion batteries. Furthermore, the LP78071 is specifically designed to work within USB power specifications. No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be ISET rammed externally with a single resistor. The charger automatically terminates the charge cycle when the charge current drops to 1/10th the ISET rammed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the LP78071 automatically enters a low current state, dropping the battery drain current to less than 4µA. Other features include charge current monitor, under voltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage. Boost converter is Synchronous current mode boost DC-DC converter. Its PWM circuitry with built-in 3A Current power MOSFET makes this converter highly power efficiently. Selectable high switching frequency allows faster loop response and easy filtering with a low noise output. The non-inverting input and its error amplifier is connected to an internal 800mV precision reference voltage. Order Information LP78071 □ □ □ F: Pb-Free Package Type SP: ESOP-8 QV:TDFN-10 Features Charger: Programmable Charge Current Up to 1000mA No MOSFET, Sense Resistor or Blocking Diode Required Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating Charges Single Cell Li-Ion Batteries Directly from USB Port 8µA Supply Current in Shutdown Drainage Charge Current Thermal Regulation Status Outputs for LED or System Interface Boost: 1.5A Output Current Synchronous Boost Converter 600KHz fixed frequency switching High Switch On Current: 3A Low RDS(ON) Integrated Power Mosfet Efficiency is 94% Built-in OVP, OTP, OCP, Soft-Star Consumption Available in ESOP-8 Package RoHS Compliant and 100% Lead (Pb)-Free Marking Information Applications MID/Pad Power Bank Smart Phone Bluetooth Applications Device Marking Package Shipping LP78071SPF LP78071QVF SP:ESOP-8 QV:TDFN10 3K/REEL |
Similar Part No. - LP78071 |
|
Similar Description - LP78071 |
|
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
