CXLB7201F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。它的封装和低外部组件数量使CXLB7201F非常适合便携式应用。此外，CXLB7201F专门设计用于USB电源规格。
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。充电电压固定在4.2V，充电电流可通过一个电阻器进行外部编程。当充电电流降至编程值的1/10时，CXLB7201F自动终止充电循环达到最终浮充电压后的值。
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产品概述 返回TOP
The CXLB7201F is a complete constant current/constant voltage linear charger for single cell lithium-ion batteries.
Its package and low external component count make the CXLB7201F ideally suited for portable applications.
Furthermore, the CXLB7201F 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 CXLB7201F automatically terminates the charge cycle when the charge current drops to 1/10th the programmed
value after the final float voltage is reached.
The CXLB7201F converters are available in the industry standard SOT-23-5L power packages (or upon request).
产品特点 返回TOP
Ø Programmable Charge Current up to 1A
Ø No MOSFET, Sense Resistor or Blocking Diode Required
Ø Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate
Ø Charges Single Cell Li-Ion Batteries Directly from USB Port
Ø Preset 4.2V Charge Voltage with 1% Accuracy
Ø Automatic Recharge
Ø 2.9V Trickle Charge Threshold
Ø Available in 5-Lead SOT-23 Package
应用范围 返回TOP
Ø Charger for Li-Ion Coin Cell Batteries
Ø Portable MP3 Players, Wireless Headsets
Ø Bluetooth Applications
Ø Multifunction Wristwatches
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
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电路原理图 返回TOP
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单节锂电池充电管理IC |
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Model |
VIN (V) |
VOUT (V) |
IOUT |
Package |
ISLEEP |
|
4.7V ～ 6V |
4.22V |
1A |
SOP-8L |
20 |
|
|
4.7V ～ 6V |
4.22V |
1.5A |
SOP-8L |
20 |
|
|
4.7V ～ 6V |
4.22V |
1.8A |
SOP-8L |
20 |
|
|
4.7V ～ 6V |
4.22V |
700mA |
SOT-23 |
20 |
|
|
4.7V ～ 6V |
4.22V |
1000mA |
SOT-23 |
20 |
|
|
4.7V ～ 6V |
4.2V |
1A |
SOT-23 |
20 |
|
|
4.7V ～ 6V |
4.22V |
1000mA |
SOT-23 |
20 |
|
|
4.7V ～ 6V |
4.22V |
900mA |
SOP8 |
20 |
|
|
4.7V ～ 6V |
4.22V |
900mA |
SOP8 |
20 |
|
|
4.5~5.5 |
4.2V |
800mA |
DFN3*3-10L |
20 |
|
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