CXLB7260是一款完整的单电池恒流恒压线性充电器锂离子电池。它的SOT封装和低外部组件数使CXLB7260成为理想的适合便携式应用。此外，CXLB7260是专门为在USB电源规格下工作而设计的。不需要外部感测电阻器，也不需要由于内部MOSFET而产生的阻塞二极管
建筑。热反馈调节充电电流以限制模具在高温下的温度电源工作或环境温度过高。充电电压固定在4.2V，充电电流可以用一个电阻在外部编程。CXLB7260自动终止当充电电流降到最终浮充后编程值的1/10时的充电周期达到电压。当卸下输入电源（墙壁适配器或USB电源）时，CXLB7260将自动进入低电流状态，电池放电电流降至小于2uA。CXLB7260可以是
进入关机模式，将电源电流降至50uA。其他功能包括电池温度监视器、欠压锁定、自动充电以及两个状态管脚，用于指示充电和充电终止
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产品概述 返回TOP
The CXLB7260 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 CXLB7260 ideally
suited for portable applications.
Furthermore, the CXLB7260 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 CXLB7260 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 CXLB7260 automatically
enters a low current state, dropping the battery drain current to less than 2uA. The CXLB7260 can 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TOP
Programmable Charge Current Up to 200mA
No MOSFET, Sense Resistor or Blocking Diode Required
Complete Linear Charger in SOT Package for single Cell Lithium-Ion Batteries
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
Charge Current Monitor Output for Gas Gauging
Automatic Recharge
Charge state pairs of output, no battery and fault status display
C/10 Charge Termination
50uA Supply Current in Shutdown
2.9V Trickle Charge Threshold
Soft-Start Limits Inrush Current
Battery temperature monitoring function
ESD HBM 8KV
Available in SOT23-5 Package
应用范围 返回TOP
Wearable device
Small capacity battery charger application
Bluetooth 、GPS Applications
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产品封装图 返回TOP
电路原理图 返回TOP
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开关模式单节锂电充电IC |
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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 |
涓流电止电压 |
功耗 |
封装 |
|
4.19V |
4.5-6.5V |
2A |
4.19V |
±1% |
2.9V |
3mA |
ESOP-8 |
|
|
4.2V |
3.8-6.5V |
2.5A |
4.2V |
±1% |
2.9V |
190uA |
ESOP8 |
|
|
4.35V |
3.8-6.5V |
2.5A |
4.35V |
±1% |
2.9V |
190uA |
ESOP8 |
|
|
4.2V |
4.5-5.5V |
2.5A |
4.2V |
±1% |
2.9V |
70uA |
ESOP8 |
|
|
4.35V |
4.4-5.5V |
2.5A |
4.35V |
±1% |
2.5V |
70uA |
ESOP8 |
|
|
4.2V |
4.0-6.5V |
3.5A |
4.2V以上可调 |
±1% |
2.9V |
70uA |
ESOP-8 |
|
|
4.2V |
4.5-28V |
扩流4A |
4.2V以上可调 |
±1% |
2.9V |
1mA |
SSOP-10 |
|
|
4.2V |
4.83-28V |
扩流4A |
4.2V以上可调 |
±1% |
3.1V |
1mA |
SSOP-10 |
|
|
4.2V |
5.0-20V |
扩流3A |
4.2V |
±1% |
3.0V |
1mA |
MSOP-10 |
|
|
4.2V |
4.8V-20V |
3A |
4.2V |
±1% |
2.9V |
1.5mA |
SOP-8 |
|
|
4.2V |
4.35-6V |
2A |
4.2V |
±1% |
2.9V |
60uA |
DFN3*3-10 |
|
|
4.2V |
4.35-6V |
2A |
4.2V以上可调 |
±1% |
2.9V |
60uA |
DFN3*3-10 |
|
|
单节 |
最大20V |
扩流3A |
4.2V |
0.50% |
3.0V |
10mA |
MSOP-10 |
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