CXLB7248D

CXLB7248D是一款适用于单电池锂离子电池的完整恒流恒压线性充电器。它的SOT封装和低外部组件数量使CXLB7248D非常适合便携式应用。此外,CXLB7248D是专门为在USB电源规格下工作而设计的。由于内部MOSFET结构,不需要外部感测电阻,也不需要阻塞二极管。热反馈调节充电电流,以在高功率运行或高环境温度下限制模具温度。充电电压固定在4.35V,充电电流可通过一个电阻在外部编程。当充电电流降至编程值的1/10时,CXLB7248自动终止充电循环,当达到最终浮充电压后,当输入电源(墙壁适配器或USB电源)被卸下时,CXLB7248自动进入低电流状态,将电池放电电流降至小于2uA。CXLB7248D可以进入停机模式,将电源电流降低到50uA。其他功能包括电池温度监视器、欠压锁定、自动充电和两个指示充电和充电终止的状态引脚

可编程充电电流600毫安线性锂离子电池充电器CXLB7248D单电池用全恒流恒压线性充电器2.9V涓流充电阈值软起动限制浪涌电流温度监测功能

产品手册

产品订购

产品简介

目录

   产品概述 返回TOPkUP嘉泰姆


The CXLB7248D is a complete constant current & constant voltage linear charger for single cell lithium-ion batteries. Its SOT package and low external component count make the CXLB7248D ideally suited for portable applications. Furthermore, the CXLB7248D 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 4.35V, and the charge current can be programmed externally with a single resistor. The CXLB7248Dautomatically 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 CXLB7248Dautomatically enters a low current state, dropping the battery drain current to less than 2uA. The CXLB7248Dcan be put into shutdown mode, reducing the supply current to 50uA. Other features include Battery temperature monitor, under-voltage lockout, automatic recharge and two status pins to indicate charge and charge termination

   产品特点 返回TOPkUP嘉泰姆


Programmable Charge Current Up to 600mA kUP嘉泰姆

No MOSFET, Sense Resistor or Blocking Diode Required kUP嘉泰姆

Complete Linear Charger in SOT Package for single Cell Lithium-Ion Batteries kUP嘉泰姆

Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge kUP嘉泰姆

Rate Without Risk of Overheating Charges Single Cell Li-Ion Batteries Directly from USB Port kUP嘉泰姆

Preset 4.35V Charge Voltage with ±1% Accuracy kUP嘉泰姆

Charge Current Monitor Output for Gas Gauging Automatic Recharge Charge state pairs of output, no battery and fault status display kUP嘉泰姆

C/10 Charge Termination kUP嘉泰姆

50uA Supply Current in Shutdown kUP嘉泰姆

2.9V Trickle Charge Threshold kUP嘉泰姆

Soft-Start Limits Inrush Current kUP嘉泰姆

Battery temperature monitoring function kUP嘉泰姆

ESD HBM 8KV kUP嘉泰姆

Available in SOT23-5 PackagekUP嘉泰姆

   应用范围 返回TOPkUP嘉泰姆


Cellular Telephones, PDAs, MP3 /MP4 Players kUP嘉泰姆

Charging Docks and Cradles kUP嘉泰姆

Bluetooth 、GPS ApplicationskUP嘉泰姆

   技术规格书(产品PDF) 返回TOP kUP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kUP嘉泰姆

 QQ截图20160419174301.jpgkUP嘉泰姆

产品封装图 返回TOPkUP嘉泰姆


blob.pngkUP嘉泰姆

电路原理图 返回TOPkUP嘉泰姆

 kUP嘉泰姆


 kUP嘉泰姆

blob.png

相关芯片选择指南 返回TOP         更多同类产品......


 kUP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

◀ 上一篇:单片热调节功能微型线性电池管理芯片CXLB7248C单片锂离子电池恒流恒压线形电源管理芯片可编程使充电电流500mA充电电流输出监控1/10充电电流终止

返回顶部

下一篇▶:防电池反接独立线性单节锂电池恒流恒压线性充电IC防反接功能CXLB7249充电电流最大可编程至800mA软启动涓流充电隔值2.9V