可编程充电电流1A单电池锂离子电池的恒流恒压线性充电器CXLB7371可使用外部热敏电阻监测环境或蓄电池温度固定55mA预充电电流热限制简化了电路板设计外部热敏电阻监视器启用禁用控制

CXLB7371是一款用于单电池锂离子电池的恒流/恒压线性充电器。CXLB7371不需要外部MOSFET或二极管，可接受高达6.0V的输入电压。小封装和低外部组件数使CXLB7371非常适合便携式应用。片上热限制简化了PC板布局，并允许最佳充电速率，而不受最坏情况下电池和输入电压的热限制。当达到CXLB7371热极限时，充电器不会关闭，而只是降低充电电流。可使用外部热敏电阻监测环境或蓄电池温度。当温度超出范围时，充电暂停。其他功能包括STAT1和2个输出，用于指示四种充电状态，以及EN输入，用于打开或关闭CXLB7371

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

---

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TOP

---

· Programmable Charge Current Up to 1A 

· Charge Status Output Pins 

· Soft-Start Limits Inrush Current 

· 4.2V Charge Voltage with ±1% Accuracy 

· Fixed 55mA Prequal Charge Current 

· Thermal Limiting Simplifies Board Design 

· External Thermistor Monitor 

· Enable/Disable Control 

· 3mm x 3mm DFN-10 Package (DFN3x3-10) 

· Disable Charging When VIN > 6.4V 

· Lead Free and Green Devices Available (RoHS Compliant)

   应用范围 返回TOP

---

· PDAs 

· MP3 Players 

· Cell Phones 

· Wireless Appliances

   技术规格书（产品PDF) 返回TOP 

---

     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

---

电路原理图 返回TOP

 

---

 

相关芯片选择指南 返回TOP                              更多同类产品......

---

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