可编程充电电流800毫安CXLB7255单电池锂离子电池完整恒流恒压线性充电器自动终止充电循环最终浮充电压后电流降至编程值的1/10

CXLB7255是一款完整的恒流/恒压线性充电器用于单电池锂离子电池。它的封装和低外部组件计数使CXLB7255非常适合便携式应用。此外，CXLB7255专门设计用于USB电源规格。
不需要外部感应电阻，也不需要阻塞二极管内部MOSFET结构。充电电压固定在4.2V，并且
充电电流可以用一个电阻在外部编程。当充电时，CXLB7255自动终止充电循环达到最终浮充电压后，电流降至编程值的1/10。CXLB7255转换器在行业标准DFN3*3-10L中提供电源包行业标准DFN3*3-10L电源包

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 CXLB7255 is a complete constant-current/constant voltage linear charger 

for single cell lithium-ion batteries. Its package and low external component 

count make  the   CXLB7255 ideally  suited  for  portable applications. 

Furthermore, the CXLB7255 is specifically designed to work within USB power

 specifications.

      No external sense resistor is needed, and no blocking diode is required due

 to the internal MOSFET architecture. The charge voltage is fixed at 4.2V, and 

the charge current can be programmed externally with a single resistor.
      The CXLB7255 automatically terminates the charge cycle when the charge 

current drops to 1/10th the programmed value after the final float voltage is reached.
     The CXLB7255 converters are available in the industry standard DFN3*3-10L

 power packages industry standard DFN3*3-10L power packages

   产品特点 返回TOP

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   Programmable Charge Current Up to 800mA
No MOSFET, Sense Resistor or Blocking Diode Required
Constant-Current/Constant-Voltage Operation with Thermal Regulation 

     to Maximize  Charge Rate
Without Risk of Overheating
Charges Single Cell Li-Ion Batteries Directly from USB Port
Preset 4.2V Charge Voltage with 1% Accuracy
Automatic Recharge
2.9V Trickle Charge Threshold
Available in DFN3*3-10L Package

   应用范围 返回TOP

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Charger for Li-Ion Coin Cell Batteries
Portable MP3 Players, Wireless Headsets
Bluetooth Applications
Multifunction Wristwatches

   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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线性单节锂电充电IC
产品型号	输出电压	输入电压	最大充电电流	充电截止电压	精度	涓流充电截止电压	功耗	封装形式
CXLB7244	4.2V	4.5-12V	200mA	4.2V	±1%	2.9V	55uA	SOT23-6
CXLB7245DR	4.2V	4.5-6.0V	300mA	4.2V	±1%	2.9V	350uA	DFN2*3-8
CXLB7246DR	4.2V	4.25-6.5V	200mA	4.2V	±1%	2.9V	350uA	DFN2*3-8
CXLB7246MR	4.2V	4.25-6.5V	200mA	4.2V	±1%	2.9V	150uA	SOT-25
CXLB7247	4.2V	4.25-6.5V	1.2A	4.2V	±1%	2.9V	25uA	ESOP8
CXLB7247ADR	4.2V	4.5-12V	1A	4.2V	±1%	2.9V	55uA	DFN3*3-8
CXLB7247B	3.6V/4.2V	4.25-6.5V	1.2A	3.6V-4.2V	±1%	2.9V	25uA	ESOP8
CXLB7247DR	4.2V	4.5V-8V	1A	4.2V	±1%	2.9V	55uA	DFN3*3-8
CXLB7248	4.2V	4.25-6.5V	800mA	4.2V	±1%	2.9V	25uA	SOT23-5
CXLB7248B	4.2V	4.25-6.5V	800mA	4.2V	±1%	2.9V	25uA	SOT23-5
CXLB7248C	4.2V	4.25-6.5V	500mA	4.2V	±1%	2.9V	25uA	SOT23-5
CXLB7248D	4.35V	4.25-6V	800mA	4.35V	±1%	2.9V	25uA	SOT23-5
CXLB7249	4.2V	4.25-6.5V	800mA	4.2V	±1%	2.9V	85uA	SOT23-5
CXLB7249B	3.7V	4-7V	500mA	3.7V	±1%	2.5V	250uA	SOT23-5
CXLB7249C	2.8V	4-7V	500mA	2.8V	±1%	2.0V	250uA	SOT23-5
CXLB7249D	4.35V	4.25-6.5V	800mA	4.35V	±1%	2.9V	85uA	SOT23-5
CXLB7250	4.2V	4.0-8.0V	1200mA	4.2V	±1%	2.9V	55uA	ESOP8
CXLB7250A	4.2V	4.0-8.0V	1200mA	4.2V	±1%	2.9V	55uA	ESOP8
CXLB7250B	4.35V	4.0-8.0V	1200mA	4.35V	±1%	2.9V	55uA	ESOP8
CXLB7250C	4.2V	4.25-7.0V	1000mA	4.2V	±1%	2.9V	55uA	ESOP8
CXLB7250DR	4.2V	4.25-7.0V	1000mA	4.2V	±1%	2.9V	50uA	DFN2X2-6L
CXLB7251	4.2V	4.25-6.0V	750mA	4.2V	±1%	2.9V	25uA	SOT23-6
CXLB7251A	4.2V	4.25-6.0V	800mA	4.2V	±1%	2.9V	25uA	SOT23-6
CXLB7251B	4.35V	4.5-6.5V	700mA	4.35V	±1%	2.9V	80uA	SOT-26
CXLB7251C	4.2V	4.25-6.5V	500mA	4.2V	±1%	2.9V	25uA	SOT-26
CXLB7251D	4.2V	4.5-18V	800mA	4.2V	±1%	2.9V	70uA	SOT-26
CXLB7252	4.2V	3.8-6.5V	1A/0.5A	4.2V	±1%	2.9V	450uA	ESOP8/SOP8
CXLB7253	4.2V	4.5-7V	扩流3A	4.2V	±1%	2.9V	1mA	SOP-8
CXLB7366	4.2V	4.5-12V	700mA	4.2V	±1%	2.9V	55uA	SOT23-5
CXLB7367	4.2V	4.5-12V	700mA	4.2V	±1%	2.9V	55uA	SOT23-6
CXLB7254	4.2V	4.25-6.5V	1000mA	4.2V	±1%	2.9V	50uA	ESOP8
CXLB7368	4.2V	4.5-12V	1000mA	4.2V	±1%	2.9V	55uA	ESOP8
CXLB7255	4.2V	4.5-5.5V	800mA	4.2V	±1%	2.9V	48uA	DFN3*3-10
CXLB7256	4.2V	4.5V-18V	1.3A	4.2V	±1%	2.9V	48uA	SOP8
CXLB7256A	4.2V	4.5-18V	1.6A	4.2V	±1%	2.9V	7uA	SOP-8