1.5A Linear Li-Ion/Polymer Charger IC with Integrated FET and Charger Timer The CXLB7389 series are highly integrated single cell Li-Ion/Polymer battery charger IC designed for handheld devices

   产品概述 返回TOPCae嘉泰姆

The CXLB7389 series are highly integrated single cellCae嘉泰姆

Li-Ion/Polymer battery charger IC designed for handheldCae嘉泰姆

devices. This charger is designed to work with variousCae嘉泰姆

types of AC adapters or a USB port and capable ofCae嘉泰姆

operating with an input voltage as low as 2.65V.Cae嘉泰姆

The CXLB7389 operates as a linear charger and charges theCae嘉泰姆

battery in three phases: trickle current, constant current,Cae嘉泰姆

and constant voltage. When AC-adapter is applied, anCae嘉泰姆

external resistor sets the magnitude of the charge current,Cae嘉泰姆

which may be programmed up to 1.5A with TDFN10Cae嘉泰姆

package and a current-limited adapter for lowest powerCae嘉泰姆

dissipation.Cae嘉泰姆

The CXLB7389 features thermal regulation loop to controlCae嘉泰姆

charge current to keep safe operation when PCB lacked ofCae嘉泰姆

enough heat-sinking. A programmable charge timerCae嘉泰姆

provides a backup safety for termination. The CXLB7389Cae嘉泰姆

automatically re-starts the charge if the battery voltageCae嘉泰姆

falls below an internal threshold and automatically entersCae嘉泰姆

sleep mode when DC supplies are removed. No externalCae嘉泰姆

sense resistor or blocking diode is required for charging. ACae嘉泰姆

NTC thermistor interface is used for charging the batteryCae嘉泰姆

                       in a safe temperature range.Cae嘉泰姆

   产品特点 返回TOPCae嘉泰姆

     Very Low Power DissipationCae嘉泰姆

Accepts Multiple Types of Adapters or USB BUS PowerCae嘉泰姆

Integrated Power FET and Current Sensor for UpCae嘉泰姆

to 1.5A Charge ApplicationsCae嘉泰姆

Guaranteed to Operate at 2.65V After Start-UpCae嘉泰姆

Charge Termination by Minimum Current andCae嘉泰姆

TimeCae嘉泰姆

Precharge Conditioning With Safety TimerCae嘉泰姆

Reverse Leakage Protection Prevents BatteryCae嘉泰姆

DrainageCae嘉泰姆

Charge Current Thermal RegulationCae嘉泰姆

Status Outputs for LED or System InterfaceCae嘉泰姆

Indicates Charge and Fault ConditionsCae嘉泰姆

Optional Battery Temperature Monitoring BeforeCae嘉泰姆

and During ChargeCae嘉泰姆

Automatic Sleep Mode for Low-PowerCae嘉泰姆

ConsumptionCae嘉泰姆

Available in 3mm × 3mm TDFN-10 PackageCae嘉泰姆

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

   应用范围 返回TOPCae嘉泰姆

z PDAs, Cell Phones and Smart Phones Cae嘉泰姆

z Portable Instruments. Cae嘉泰姆

z Stand-Alone Charger. Cae嘉泰姆

z USB Bus Powered ChargerCae嘉泰姆

   技术规格书（产品PDF) 返回TOP Cae嘉泰姆

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Cae嘉泰姆