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
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目录
产品概述 返回TOP
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
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
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
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
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
| 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 |
