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1.产品概述       2.产品特点     fSi嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）fSi嘉泰姆

5.产品封装       6.电路原理图  fSi嘉泰姆

7.相关产品fSi嘉泰姆

   产品概述 返回TOPfSi嘉泰姆

The CXLB7370 charges a single-cell Li+ battery from both USB and AC adapter sources. It also includes batteryto-input power switchover, therefore, the system can be powered directly from the power source rather than from the battery. In its simplest application, the CXLB7370 doesn’t need external MOSFET or diodes and accepts input voltages up to 6.5V; however, DC input over-voltage protection up to 18V can be added with a single SOT PFET. 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 CXLB7370 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 STAT 1 and STAT 2 outputs indicating various charge status. DC power-OK (DCOK), USB power-OK (UOK), and poweron (PON) outputs indicate when valid power is present. These outputs drive logic or power-selection MOSFETs to disconnect the charging sources from the load and to protect the CXLB7370 from overvoltage. The CXLB7370 doesn’t contain logic for communication with the USB host. It must receive instructions from a local microcontroller. The CXLB7370is available in 16-pin 5mmx5mm QFN and 4mmx4mm TQFN packages and operates over the -40°C to +85°C temperature range.

   产品特点 返回TOPfSi嘉泰姆

· Charge from USB or AC Adapter fSi嘉泰姆

· Accurate BATT Regulation Voltage fSi嘉泰姆

· Programmable DC Charging Current fSi嘉泰姆

· Selectable USB Charging Current (Either 100mA or 500mA) fSi嘉泰姆

· Thermal Regulation for Simplified Board Design fSi嘉泰姆

· Input Protection Up to 18V fSi嘉泰姆

· Soft-Start fSi嘉泰姆

· External Thermistor Monitoring fSi嘉泰姆

· Charge Shutdown Control fSi嘉泰姆

· Charge Status Outputs fSi嘉泰姆

· DC and USB Power-OK Indicators fSi嘉泰姆

· Small, High Power QFN5x5-16 and TQFN4x4-16 Packages fSi嘉泰姆

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

   应用范围 返回TOPfSi嘉泰姆

· Smart Phones and PDAs fSi嘉泰姆

· Wireless Appliances fSi嘉泰姆

· Digital Still Camera fSi嘉泰姆

· Internet AppliancesfSi嘉泰姆

   技术规格书（产品PDF) 返回TOP fSi嘉泰姆

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！fSi嘉泰姆

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产品封装图 返回TOPfSi嘉泰姆

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电路原理图 返回TOPfSi嘉泰姆

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