可编程充电电流800毫安CXLB7248B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C/10充电终止软启动限制浪涌电流

产品简介

The CXLB7248B is a complete constant-current/constant voltage linear charger for single cell lithium-ion batteries. Its ThinSOT package and low external component count make the CXLB7248B ideally suited for portable applications. Furthermore, the CXLB7248B 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. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The CXLB7248B automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the CXLB7248B automatically enters a low current state, dropping the battery drain current to less than 2μA. The CXLB7248B can be put into shutdown mode, reducing the supply current to 25μA. Other features include charge current monitor, under voltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage.

产品特点 返回TOPxFN嘉泰姆

¾ Programmable Charge Current Up to 800mA xFN嘉泰姆

¾ No MOSFET, Sense Resistor or Blocking Diode Required xFN嘉泰姆

¾ Complete Linear Charger in ThinSOTTM Package for Single Cell Lithium-Ion Batteries xFN嘉泰姆

¾ Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating xFN嘉泰姆

¾ Charges Single Cell Li-Ion Batteries Directly from USB Port xFN嘉泰姆

¾ Preset 4.2V Charge Voltage with ±1% Accuracy xFN嘉泰姆

¾ Charge Current Monitor Output for Gas Gauging xFN嘉泰姆

¾ Automatic Recharge xFN嘉泰姆

¾ Charge Status Output Pin xFN嘉泰姆

¾ C/10 Charge Termination xFN嘉泰姆

¾ 25mA Supply Current in Shutdown xFN嘉泰姆

¾ 2.9V Trickle Charge Threshold xFN嘉泰姆

¾ Soft-Start Limits Inrush Current xFN嘉泰姆

¾ Available in 5-Lead SOT-23 Package xFN嘉泰姆

¾ When using a single lamp,the light is completely extinguished after fully charging.xFN嘉泰姆

应用范围 返回TOPxFN嘉泰姆

¾ Cellular Telephones, PDAs, MP3 Players xFN嘉泰姆

¾ Charging Docks and Cradles xFN嘉泰姆

¾ Bluetooth Applications.xFN嘉泰姆

技术规格书（产品PDF) 返回TOP xFN嘉泰姆

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！xFN嘉泰姆

QQ截图20160419174301.jpg xFN嘉泰姆

产品封装图 返回TOPxFN嘉泰姆

xFN嘉泰姆

电路原理图 返回TOPxFN嘉泰姆

xFN嘉泰姆

相关芯片选择指南返回TOP 更多同类产品......

xFN嘉泰姆

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

CXLB7248B

产品手册

产品简介

目录

相关芯片选择指南返回TOP 更多同类产品......

CXLB7248B

产品手册

产品简介

目录

相关芯片选择指南 返回TOP 更多同类产品......

相关芯片选择指南返回TOP 更多同类产品......