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LP28300A/B/C

发布时间:2018-9-13 9:03:00 访问次数:90 发布企业:深圳市近平电子有限公司

LP28300A/B/C

Charge Current(mA):


4-18Input Voltage(V):


4.2/8.4/12.6Battery Voltage (V) :


1/2/3Cells:


SwitchingMode:


YesTemperature Monitor:


1State Monitor:


High Vin Voltage,Large Current,Temp MonitoringSpecial Features:


ESOP-8/TDFN-10Package:




2A Synchronous Buck Li-ion Charger




General Description



The LP28300 is a 2A Li-Ion battery charger. It utilizes a 500KHz synchronous buck converter topology to reduce power dissipation during charging. Low power dissipation, an internal MOSFET allow a physically small charger that can be embedded in a wide range of handheld applications. The LP28300 includes complete charge termination circuitry, automatic recharge and a ±1% 4.2V / 8.4V / 12.6V float voltage. Battery charge current, charge timeout and end-of-charge indication parameters are set with external components. Additional features include shorted cell detection; temperature qualified charging and overvoltage protection. The LP28300 is available in a low profile ESOP8 and package.






Applications



 Portable Media Players


 Cellular and Smart mobile phone


 PDA/DSC


 Handheld Battery-Powered Devices


 Handheld Computers


 Charging Docks and Cradles





Features




 Input voltage range 4V~18V


 Dynamic input current allocation for maximum


charging rate


 2.0A Maximum Charge Current


 No External MOSFETs and Blocking Diode


Required


 Efficiency up to 90%


 Constant-Current/Constant-Voltage Operation


with Thermal Regulation to Maximize Charge


Rate Without Risk of Overheating


 Optional Battery Temperature Monitoring Before


and During Charge Automatic Sleep Mode for


Low-Power


 Over Current Protection


 Consumption Available in ESOP8


 RoHS Compliant and 100% Lead (Pb)-Free

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