Li+ Battery Charger with Thermal Regulation CXLB7371 is a constant-current/constant-voltage linear charger for single cell Li+ batteries. The CXLB7371 needs no external MOSFET or diodes, and accepts

   产品概述 返回TOPuEp嘉泰姆

The CXLB7371 is a constant-current/constant-voltage linear charger for single cell Li+ batteries. The CXLB7371 needs no external MOSFET or diodes, and accepts input voltage up to 6.0V. The small packages and low external component count make the CXLB7371 ideally suited for portable applications. On-chip thermal limiting simplifies PC board layout and allows optimum charging rate without the thermal limits imposed by worst-case battery and input voltage. When the CXLB7371 thermal limit is reached, the charger does not shut down but simply reduces charging current. Ambient or battery temperature can be monitored with an external thermistor. When the temperature is out of range, charging pauses. Other features include the STAT1 and 2 outputs to indicate four charge states, and the EN input, switches the CXLB7371on or off. The CXLB7371is available in 3mmx3mm DFN-10 package, and operates over the -40°C to +85°C temperature range

   产品特点 返回TOPuEp嘉泰姆

· Programmable Charge Current Up to 1A uEp嘉泰姆

· Charge Status Output Pins uEp嘉泰姆

· Soft-Start Limits Inrush Current uEp嘉泰姆

· 4.2V Charge Voltage with ±1% Accuracy uEp嘉泰姆

· Fixed 55mA Prequal Charge Current uEp嘉泰姆

· Thermal Limiting Simplifies Board Design uEp嘉泰姆

· External Thermistor Monitor uEp嘉泰姆

· Enable/Disable Control uEp嘉泰姆

· 3mm x 3mm DFN-10 Package (DFN3x3-10) uEp嘉泰姆

· Disable Charging When VIN > 6.4V uEp嘉泰姆

· Lead Free and Green Devices Available (RoHS Compliant)uEp嘉泰姆

   应用范围 返回TOPuEp嘉泰姆

· PDAs uEp嘉泰姆

· MP3 Players uEp嘉泰姆

· Cell Phones uEp嘉泰姆

· Wireless AppliancesuEp嘉泰姆

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