Switch Mode Li-Ion Polymer Battery Charger CXLB7265 is a constant current, constant voltage Li-Ion battery charger controller that uses a current mode PWM step-down (buck) switching architecture

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The CXLB7265 is a constant current, constant voltage Li-Ion battery charger controller that uses a current mode PWM step-down (buck) switching architecture. With a 500kHz switching frequency, the CXLB7265 provides a small, simple and efficient solution to fast charge one (4.2V) or two (8.4V) cell lithium-ion batteries. The CXLB7265 charges the battery in three phases: conditioning, constant current, and constant voltage. An external sense resistor sets the charge current with ±10% accuracy. An internal resistor divider and precision reference set the final float voltage to 4.2V per cell with ± 1% accuracy. An internal comparator detects the near end-of-charge condition while an internal timer sets the total charge time and terminates the charge cycle. The CXLB7265 automatically re-starts the charge if the battery voltage falls below an internal threshold, 4.05V per cell. The CXLB7265also automatically enters sleep mode when DC supplies are removed. The CXLB7265is available in the 8-lead SOP package

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Wide Input Supply Voltage Range: JID嘉泰姆

4.8V to 20V – 4.2 Version JID嘉泰姆

8.9V to 20V – 8.4 Version JID嘉泰姆

8.9V to 20V – 8.34 Version
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500kHz Switching FrequencyJID嘉泰姆

End-of-Charge Current Detection OutputJID嘉泰姆

12 Hour Charge Termination TimerJID嘉泰姆

±1% Charge Voltage AccuracyJID嘉泰姆

 
±10% Charge Current AccuracyJID嘉泰姆

 Low 10μA Reverse Battery Drain CurrentJID嘉泰姆

 Automatic Battery RechargeJID嘉泰姆

 
Automatic Trickle Charging of Low Voltage BatteriesJID嘉泰姆

 
Automatic Sleep Mode for Low Power ConsumptionJID嘉泰姆

 
Battery Temperature SensingJID嘉泰姆

 
Stable with Ceramic Output CapacitorJID嘉泰姆

 
Support up to 3A Charge CurrentJID嘉泰姆

8-Lead SOP Package
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RoHS Compliant and 100% Lead (Pb)-Free Halogen-FreeJID嘉泰姆

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Small Notebook ComputerJID嘉泰姆

 
Portable DVDJID嘉泰姆

 
Handheld InstrumentsJID嘉泰姆

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