CXCH76027交流适配器USB端口为单电池锂离子电池充电可编程恒流充电电流限制2A完成预充电恒流恒压充电终止充电程序电池温度检测的NTC热敏电阻接口

CXCH76027是一款完整的独立线性锂离子电池充电器，具有完整的预充电、恒流和恒压充电回路。由于内部功率MOSFET结构，不需要外部功率MOSFET、感测电阻和阻断二极管。充电电压调节为4.2V，充电电流可由一个最大为2A的外部电阻器编程。当达到最终调节电压且充电电流降至编程的充电电流结束时，开漏NMOS状态管脚将自动关闭，超时后充电回路将终止。其他功能包括欠压锁定、自动充电、用于在安全范围内为电池充电的NTC热敏电阻接口、超温保护和两个充电状态指示引脚

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 CXCH76027 is a complete standalone linear Li-Ion battery charger with a complete pre-charge, constantcurrent and constant-voltage charge loop. No external power MOSFET, sense resistor and blocking diode is required due to internal power MOSFET architecture. The charge voltage is regulated at 4.2V, and the charge current is programmable by an external resistor up to 2A. After the final regulation voltage is reached and the charge current drops to the programmed end-of-charge current, the open drain NMOS STATUS pin would be turn off automatically and the charge loop would be terminated after timeout. Other features include under voltage lockout, automatic recharge, an NTC thermistor interface for charging the battery in a safe range, over temperature protection and two charge status indication pins.

   产品特点 返回TOP

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„ No External Power MOSFET, Sense Resistor or Blocking Diode Required 

„ 1% Regulation Voltage Accuracy 

„ Charge Single Cell Li-ion Battery from AC Adapter or USB Port 

„ Programmable Constant Charge Current Limit up to 2A 

„ Automatic Recharge 

„ Complete Pre-Charge, Constant Current, Constant Voltage and Charge Termination Charge Procedure 

„ NTC Thermistor Interface for Battery Temperature Detection 

„ Internal input Overvoltage Lockout Protection Circuit (VIN >6.5V) 

„ Support for 5V Power Supply Voltage 

„ Internal Thermal Protection Circuit 

„ TDFN3X3-10, TQFN3X3-16 and TQFN4X4-16 Package Available

   应用范围 返回TOP

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„ MP3 Players 

„ Cellular Phones 

„ PDAs 

„ Hand-Held Devices

   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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Charger
Part NO.	Vin(V) min.	Vin(V) max.	Description	Note	Package
CXCH76024	4.25	6.5	Single Cell Li-IonBattery  Linear Charger	Programmable charging current up to1A,OTP, Automatic Re-charge,Pre-charge 1/10th,UVLO	SO23-5 5SOP-8(FD)
CXCH76025	4.25	6.5	Single Cell Li-Ion Battery  Linear Charger	Programmable charging current up to1A,OTP,Automatic  Re-charge, Pre-charge 1/10th,CC,CV,Input OVP,UVLO, Indicator, End of charge current threshold	TSO23-5  SOP8(FD)
CXCH76026	4.25	6.5	Single Cell Li-Ion Battery  Linear Charger	Programmable charging current up to 800mA,OTP, Automatic Re-charge, Pre-charge 1/10th,CC,CV,Input  OVP,UVLO,Indicator,End of charge current threshold	TSOT23-5
CXCH76027	--	8	Single Cell Li-Ion Battery  Linear Charger	Programmable charging current up to 2A,OTP,UVLO, Automatic Re-charge,Pre-charge 1/10th,CC,CV,Input  OVP,Indicator, End of charge timer,NTC Interface	TDFN3X3-10 TQFN4X4-16 TDFN3X3-16
CXCH76028	4.35	6.5	Single Cell Li-ion Battery  Linear Charger Dual Input  of USB and AC adapter	Programmable charging current up to1A,UVLO,Pre-charge  1/10th,CC,CV,ChargeTermination,Automatic Re-charge,STAT 1,STAT2,Temperature sensor  Input,Charge with safety timer	TDFN3X3-10