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RT9501A Richtek Technology (RT9501A/B) Advanced Lithium-Ion Linear Battery Charger Datasheet


Richtek Technology
RT9501A
Part Number RT9501A
Manufacturer Richtek Technology
Description The RT9501 is a single Lithium-Ion or Lithium-Polymer cell linear battery charger which is designed for compact and cost-sensitive handheld devices. It combines charge status indication, charge termination, battery temperature monitoring, and high accuracy current and voltage regulation in a MSOP-8 ...
Features z For Single Lithium-Ion or Lithium-Polymer Cell Battery Pack (4.1V or 4.2V) A Few External Components are Required Precharge, Constant Current, Constant Voltage Modes Battery Temperature Monitor Charge Status Indication Automatic Battery Recharge Charge Termination Detect Auto Low Power Sleep Mode when VDD Power is Removed MSOP-8 Package RoHS Compliant and 100% Lead (Pb)-Free z z z z z z z z z Applications z z z z Digital Cameras PDAs Cellular Phones Information Appliance Ordering Information RT9501 Package Type F : MSOP-8 Operating Temperature Range P : Pb Free with Commercial Standar...

Document Datasheet RT9501A datasheet pdf (244.22KB)




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RT9501A Similar Datasheet

Part Number Description
RT9501B
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Richtek Technology
(RT9501A/B) Advanced Lithium-Ion Linear Battery Charger
The RT9501 is a single Lithium-Ion or Lithium-Polymer cell linear battery charger which is designed for compact and cost-sensitive handheld devices. It combines charge status indication, charge termination, battery temperature monitoring, and high accuracy current and voltage regulation in a MSOP-8 package. www.DataSheet4U.com The RT9501 charges the battery in three modes, precharge, constant current, constant voltage. If the battery voltage is below the precharge threshold VO(MIN), the RT9501 precharges the battery with a lower conditioning current. After precharge, the RT9501 applies a constant current to the battery. An external senseresister sets the charge current. The constant voltage ...
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The RT9505 is a fully integrated low cost single-cell LiIon battery charger ideal for portable applications. The RT9505 is capable of being powered up from AC adapter inputs. The RT9505 enters sleep mode when supplies is removed. The RT9505 optimizes the charging task by using a control algorithm including preconditioning mode, fast charge mode and constant voltage mode. The charging task is terminated as the charge current drops below the preset threshold. The AC adapter charge current can be programmed up to 1A with an external resister. The internal thermal feedback circuitry regulates the die temperature to optimize the charge rate for all ambient temperatures. The RT9505 features 18V an...




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