CXCH76028交流适配器可编程充电电流限制1A线性锂离子电池充电器预充电恒流和恒压充电回路两个电源USB端口交流适配器

CXCH76028系列是一款独立的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。CXCH76028系列提供集成的两个电源、USB端口和交流适配器，具有自主电源选择、功率MOSFET、充电状态、高精度电流和电压调节以及充电终端。在USB配置中，ISET2可以选择100毫安或500毫安的充电速率。在交流适配器配置中，充电电流可以由外部电阻设置。充电电压调节为4.2V，达到最终调节电压后，CXCH76028系列充电周期根据最小电流自动终止。内部充电计时器为充电终止提供备用安全装置。其他功能包括欠压锁定、过电压锁定、过温保护和在电池电压低于内部阈值时自动充电

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 CXCH76028 series are a standalone linear Li-Ion battery charger with a complete precharge, constant current, and constant voltage charge loop. The CXCH76028 series offer integrated two power source, USB-port and ac-adapter with autonomous power source selection, power MOSFET, charge status, high accuracy current and voltage regulation, and charge termination. In the USB configuration, 100mA or 500mA of charge rates could be selected by ISET2. In the ac-adapter configuration, charge current can be set by an external resistance. The charge voltage is regulated at 4.2V, and CXCH76028 series charge cycle would be terminated automatically based on minimum current after the final regulation voltage is reached. An internal charge timer provides a backup safety for charge termination. Other features include undervoltage lockout, overvoltage lockout, over temperature protection and auto-recharge if the battery voltage falls below an internal threshold.

   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 

„ Accepting USB and AC-Adapter Power Sources with Autonomous Power-Source Selection 

„ Overvoltage Lockout for Adapter and USB Input 

„ USB Control For Selectable 100mA and 500mA Charge Rate 

„ Programmable Charge Current Limit up to 1A From AC-adapter 

„ Automatic Recharge „ Complete Precharge, Constant Current, Constant Voltage and Charge Termination 

„ Charge Procedure with Safety Timer 

„ Support for 5V Power Supply Voltage 

„ Optional Power Good Indication (AC Adapter Present) 

„ Optional Battery Temperature Monitoring 

„ Internal Thermal Protection Circuit 

„ 3mm × 3mm TDFN Package

   应用范围 返回TOP

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„ MP3 Players 

„ Cellular Phones, Smartphone 

„ PDAs, Digital Cameras 

„ 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