600mA Linear Li-Ion Battery Charger CXLB7248D complete constant current and constant voltage linear charger for single cell lithium-ion batteries,Complete Linear Charger in SOT Package for single

   产品概述 返回TOPT31嘉泰姆

The CXLB7248D is a complete constant current & constant voltage linear charger for single cell lithium-ion batteries. Its SOT package and low external component count make the CXLB7248D ideally suited for portable applications. Furthermore, the CXLB7248D 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 4.35V, and the charge current can be programmed externally with a single resistor. The CXLB7248Dautomatically 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 CXLB7248Dautomatically enters a low current state, dropping the battery drain current to less than 2uA. The CXLB7248Dcan 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TOPT31嘉泰姆

Programmable Charge Current Up to 600mA T31嘉泰姆

No MOSFET, Sense Resistor or Blocking Diode Required T31嘉泰姆

Complete Linear Charger in SOT Package for single Cell Lithium-Ion Batteries T31嘉泰姆

Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge T31嘉泰姆

Rate Without Risk of Overheating Charges Single Cell Li-Ion Batteries Directly from USB Port T31嘉泰姆

Preset 4.35V Charge Voltage with ±1% Accuracy T31嘉泰姆

Charge Current Monitor Output for Gas Gauging Automatic Recharge Charge state pairs of output, no battery and fault status display T31嘉泰姆

C/10 Charge Termination T31嘉泰姆

50uA Supply Current in Shutdown T31嘉泰姆

2.9V Trickle Charge Threshold T31嘉泰姆

Soft-Start Limits Inrush Current T31嘉泰姆

Battery temperature monitoring function T31嘉泰姆

ESD HBM 8KV T31嘉泰姆

Available in SOT23-5 PackageT31嘉泰姆

   应用范围 返回TOPT31嘉泰姆

Cellular Telephones, PDAs, MP3 /MP4 Players T31嘉泰姆

Charging Docks and Cradles T31嘉泰姆

Bluetooth 、GPS ApplicationsT31嘉泰姆

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