800mA集成温度调节线性单节锂离子电池充电管理IC PT6103

PT6103_ DS Rev EN_1.3 PT6103 GENERAL DESCRIPTION The PT610 3 is a highly integrated Li - ion battery linear chargi ng management device targeted for space limited portable applications. The PT6103 offers an integrated MOSFET and current sensor, reverse blocking protection, high accuracy c urrent and voltage regulation, charge status indicat ion, and charge termination in SOT23 , DFN6, DFN8 or ESOP8 package. The PT6103 charges a Li - ion battery i n three phases: trickle charg e , constant current and constant voltage. N o blocking diode is require d due to the internal MOSFET architecture. The thermal feedback regulates the charging current to limit the chip temperature during high power operation or high ambient temperature to maximize the charge rate without risk of overheating . The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The PT6103 automatically terminates the charge cycle when the charge current drops to 1/10 the programmed value after the final float voltage is reached. Once th e temper ature exceed the normal range threshold is detected , the PT6103 immediately stop the charg ing and CHG pin will output a 10Hz square wave . C harg ing is stopped until the chip restart again . W hen the TS pin is floating or connected to ground, the bat tery temperature protection is disabled. F EATURES  Charge Single Cell Li - Ion Batteries Directly from USB Port  Programmable Charge Current Up to 800mA  No MOSFET, Sense Resistor or Blocking Diode Required  Complete Linear Charg ing in SOT23 - 6 , DFN6, DFN8 or E SOP8 Package for S ingle Cell Lithium - Ion Batter y  Battery Thermal Protection  Constant - Current/Constant - Voltage Operation with Thermal Regulation to Maxim ize Charge Rate Without Overheating Risk  Preset 4.2V End of Charge Voltage with ±1% Accuracy  RoHS compli ant A PPLICATIONS  Cellular Telephones, PDAs, MP3 Players  Bluetooth Applications  Digital Cameras  Charging Docks and Cradles    
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