CXCH76024单电池锂电池线性充电器预充电恒流恒压充电回路可编程恒流充电电流限制1A开漏NMOS CHRG管脚将自动关闭而不终止充电回路

CXCH76024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。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，充电电流可由外部电阻编程。在达到最终调节电压且充电电流降至编程充电电流的1/10后，开漏NMOS CHRG管脚将自动关闭而不终止充电回路。其他功能包括欠压锁定、自动充电、过温保护和充电状态指示引脚。

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 CXCH76024 is a standalone linear Li-Ion battery charger with a complete pre-charge, constant-current 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. After the final regulation voltage is reached and the charge current drops to 1/10th the programmed charge current, the open drain NMOS CHRG pin would be turn off automatically without terminating the charge loop. Other features include under voltage lockout, automatic recharge, over temperature protection and a charge status indication pin.

   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 

„ Programmable Constant Charge Current Limit up to 1A 

„ Automatic Recharge 

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

„ Support for 5V Power Supply Voltage 

„ Internal Thermal Protection Circuit 

„ SOT-23-5 & SOP-8 (FD) Package

   应用范围 返回TOP

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   技术规格书（产品PDF) 返回TOP 

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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