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: 2mQ嘉泰姆

4.8V to 20V – 4.2 Version 2mQ嘉泰姆

8.9V to 20V – 8.4 Version 2mQ嘉泰姆

8.9V to 20V – 8.34 Version
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500kHz Switching Frequency2mQ嘉泰姆

End-of-Charge Current Detection Output2mQ嘉泰姆

12 Hour Charge Termination Timer2mQ嘉泰姆

±1% Charge Voltage Accuracy2mQ嘉泰姆

 
±10% Charge Current Accuracy2mQ嘉泰姆

 Low 10μA Reverse Battery Drain Current2mQ嘉泰姆

 Automatic Battery Recharge2mQ嘉泰姆

 
Automatic Trickle Charging of Low Voltage Batteries2mQ嘉泰姆

 
Automatic Sleep Mode for Low Power Consumption2mQ嘉泰姆

 
Battery Temperature Sensing2mQ嘉泰姆

 
Stable with Ceramic Output Capacitor2mQ嘉泰姆

 
Support up to 3A Charge Current2mQ嘉泰姆

8-Lead SOP Package
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RoHS Compliant and 100% Lead (Pb)-Free Halogen-Free2mQ嘉泰姆

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Small Notebook Computer2mQ嘉泰姆

 
Portable DVD2mQ嘉泰姆

 
Handheld Instruments2mQ嘉泰姆

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