1mA~200mA Linear Li-Ion Battery Charger CXLB7246DR complete constant current constant voltage linear charger for single cell lithium-ion batteries

   产品概述 返回TOPNzq嘉泰姆

The CXLB7246DR is a complete constant current & constant voltage linear charger for single cell lithium-ion batteries. Its DFN2x3 package and low external component count make the CXLB7246DR ideally suited for portable applications. Furthermore, the CXLB7246DR 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 programmed externally with a single resistor. The CXLB7246DRautomatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the CXLB7246DRautomatically enters a low current state, dropping the battery drain current to less than 2uA. The CXLB7246DRcan be put into shutdown mode, reducing the supply current to 50uA. Other features include Battery temperature monitor, under-voltage lockout, automatic recharge and two status pins to indicate charge and charge termination.

   产品特点 返回TOPNzq嘉泰姆

     Programmable Charge Current Up to 200mA No MOSFET, Sense Resistor or Blocking Diode Required Nzq嘉泰姆

      Complete Linear Charger in DFN2x3 Package for single Cell Lithium-Ion Batteries Nzq嘉泰姆

 Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating Nzq嘉泰姆

    Charges Single Cell Li-Ion Batteries Directly from USB Port Nzq嘉泰姆

    Preset 4.2V Charge Voltage with ±1% Accuracy Charge Current Monitor Output for Gas Gauging Automatic Recharge Nzq嘉泰姆

    Charge state pairs of output, no battery and fault status display Nzq嘉泰姆

    C/10 Charge Termination Nzq嘉泰姆

    50uA Supply Current in Shutdown Nzq嘉泰姆

    2.9V Trickle Charge Threshold Nzq嘉泰姆

   Soft-Start Limits Inrush Current Nzq嘉泰姆

   Battery temperature monitoring function ESD HBM 8KV Nzq嘉泰姆

   Available in DFN2x3-8 PackageNzq嘉泰姆

   应用范围 返回TOPNzq嘉泰姆

   Wearable device Nzq嘉泰姆

   Small capacity battery charger application Nzq嘉泰姆

   Bluetooth 、GPS ApplicationsNzq嘉泰姆

   技术规格书（产品PDF) 返回TOP Nzq嘉泰姆

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