• [ CXLB73123 ]

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目录

1.产品概述       2.产品特点     LNC嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）LNC嘉泰姆

5.产品封装       6.电路原理图  LNC嘉泰姆

7.相关产品LNC嘉泰姆

   产品概述 返回TOPLNC嘉泰姆

               CXLB73123is a complete constant-current & constant voltage linear charger for single cellLNC嘉泰姆

lithium-ion and Lithium-Polymer batteries.  Its SOT-23 package and low external component countLNC嘉泰姆

make CXLB73123 ideally suited for portable applications.   Furthermore, the CXLB73123 isLNC嘉泰姆

specifically designed to work within USB power specification. At the same time, CXLB73123 can alsoLNC嘉泰姆

be used in the standalone lithium-ion and Lithium-polymer battery chargers.LNC嘉泰姆

No external sense resistor is needed, and no blocking diode is required due to the internalLNC嘉泰姆

MOSFET architecture.  Thermal feedback regulates the charge current to limit the dieLNC嘉泰姆

temperature during high power operation or high ambient temperature. The charge voltage is fixedLNC嘉泰姆

at 4.2V, and the charge current can be programmed externally with a single resistor. The CXLB73123LNC嘉泰姆

automatically terminates the charge cycle when the charge current drops to 1/10th the programmedLNC嘉泰姆

value after the final float voltage is reached.LNC嘉泰姆

When the input supply (wall adapter or USB supply) is removed, the CXLB73123 automaticallyLNC嘉泰姆

enters a low current stage, dropping the battery drain current to less than 2uA. The CXLB73123 canLNC嘉泰姆

be put into shutdown mode, reducing the supply current to 20uA.LNC嘉泰姆

Other features include charge current monitor, undervoltage lockout, automatic recharge and a LNC嘉泰姆

status pin to indicate charge termination and the presence of an input voltage. CXLB73123 isLNC嘉泰姆

intentionally designed to have slightly negative Tempco. This provides extra protection to LithiumLNC嘉泰姆

battery during charging.LNC嘉泰姆

   产品特点 返回TOPLNC嘉泰姆

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Programmable Charge Current Up to 800mA.LNC嘉泰姆

No MOSFET, Sense Resistor or Blocking DiodeLNC嘉泰姆

Required.LNC嘉泰姆

Constant-Current/Constant-Voltage OperationLNC嘉泰姆

with Thermal Protection to Maximize ChargeLNC嘉泰姆

Rate without Risk of Overheating.LNC嘉泰姆

Charges Single Cell Li-Ion Batteries DirectlyLNC嘉泰姆

from USB Port.LNC嘉泰姆

Preset 4.2V Charge Voltage with ±1% Accuracy.LNC嘉泰姆

20uA Supply Current in Shutdown.LNC嘉泰姆

2.9V Trickle Charge ThresholdLNC嘉泰姆

Soft-Start Limits Inrush Current.LNC嘉泰姆

Available in 6-Lead SOT-23 and PSOP-8LNC嘉泰姆

(Exposed Pad) Packages.LNC嘉泰姆

RoHS Compliant and 100% Lead (Pb)-FreeLNC嘉泰姆

   应用范围 返回TOPLNC嘉泰姆

 LNC嘉泰姆

Cellular Telephones, PDA’s, MP3 Players.LNC嘉泰姆

Charging Docks and CradlesLNC嘉泰姆

Bluetooth ApplicationsLNC嘉泰姆

   技术规格书（产品PDF) 返回TOP LNC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！LNC嘉泰姆

 LNC嘉泰姆

产品封装图 返回TOPLNC嘉泰姆

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LNC嘉泰姆

电路原理图 返回TOPLNC嘉泰姆

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 LNC嘉泰姆

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