6.5V的输入电压单电池锂电池的恒流恒压线性充电器CXLB7372可编程充电电流高达500mA充电状态输出引脚软起动限制浪涌电流

CXLB7372是一款用于单电池锂电池的恒流/恒压线性充电器。CXLB7372不需要外部mosfet或二极管，它可接受高达6.5V的输入电压。小封装和低外部组件数使CXLB7372成为便携式应用的理想部件。芯片内热调节可防止ACXLB7372温度过高，并针对紧凑的尺寸和典型的热条件优化电路板设计。当结温达到热调节阈值时，充电器不会关闭，而只是降低充电电流。充电电流可以通过将一个外部电阻从ISET引脚连接到GND进行编程。使用外部MOSFET将电阻器从地上断开会关闭充电器，并将输入电源电流降低至25毫安。ACXLB7372还具有指示充电状态的STAT引脚。

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXLB7372 is a constant-current/constant-voltage linear charger for single cell Li+ batteries. The CXLB7372 needs no external MOSFETs or diodes, and accepts input voltages up to 6.5V. The small package and low external component counts make the CXLB7372 an idea part for portable applications。On-chip thermal regulation protects the ACXLB7372from excessive temperature and optimizes the board design for compact size and typical thermal conditions. When the junction temperature reaches the thermal regulation threshold, the charger does not shut down but simply reduces the charge current. Charge current can be programmed by connecting an external resistor from ISET pin to GND. Using an external MOSFET to disconnect the resistor from ground shuts down the charger, and reduces the input supply current down to 25mA. The ACXLB7372also has the STAT pin to indicate charge status. The ACXLB7372is available in a SOT-23-5 package, and operates over the -40°C to +85°C temperature range

   产品特点 返回TOP

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· Programmable Charge Current Up to 500mA 

· Charge Status Output Pin 

· Soft-Start Limits Inrush Current 

· 4.2V Charge Termination Voltage with ±1% Accuracy 

· 45mA Pre-charge Current (RSET =2K) 

· Thermal Regulation Simplifies Board Design 

· Enable/Disable Control 

· Available in a SOT-23-5 Package 

· Lead Free and Green Devices Available (RoHS Compliant)

   应用范围 返回TOP

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· Bluetooth Applications 

· MP3 Players 

· Cell Phones 

· Wireless Appliances

   技术规格书（产品PDF) 返回TOP 

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     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！

 

产品封装图 返回TOP

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电路原理图 返回TOP

 

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Battery Charger > Linear Charger
Part_No	Package	Input Voltage(V)		Quiescent  Current (uA)	Charge  Current  (max)(A)	Battery  Charge  Voltage	VIN  OVP	USB Input	Battery-Load  Switch	Charge State  Output
		min	max
CXLB7370		4.35	6	2000	1000	4.2	Y	Y	Y	Y
CXLB7371	DFN3x3-10	4.35	6	2000	1000	4.2	N	N	N	Y
CXLB7372	SOT-23-5	4.35	6	300	500	4.2	N	N	N	Y
CXLB7373	DFN3x3-10	4.35	6.5	300	500	4.2	N	N	N	Y