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描述

The bq2409x series of devices are highly integrated Li-ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

The bq2409x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor. The fast charge current value is also programmable via an external resistor.

制造商:Texas Instruments产品种类:电池管理RoHS: 详细信息 产品:Charge Management电池类型:Li-Ion输出电压:4.2 V输出电流:1 A工作电源电压:4.5 V to 6.5 V工作电源电流:0.8 mA工作温度:- 40 C工作温度:+ 150 C封装 / 箱体:HVSSOP-10封装:Cut Tape封装:MouseReel封装:Reel系列:BQ24090 商标:Texas Instruments 安装风格:SMD/SMT Pd-功率耗散:1.92 W 工厂包装数量:2500 单位重量:23.500 mg

Charging1% Charge Voltage Accuracy10% Charge Current AccuracyPin Selectable USB 100-mA and 500-mA

Maximum Input Current LimitProgrammable Termination and Precharge

ThresholdProtection6.6 V Over-Voltage ProtectionInput Voltage Dynamic Power Management125°C Thermal Regulation; 150°C Thermal

Shutdown ProtectionOUT Short-Circuit Protection and ISET Short

DetectionOperation Over JEITA Range via Battery

NTC – ½ Fast-Charge-Current at Cold, 4.06V

at Hot, bq24092/3Fixed 10-Hour Safety TimerSystemAutomatic Termination and Timer Disable

Mode (TTDM) for Absent Battery Pack With

ThermistorStatus Indication – Charging/DoneAvailable in Small 10-Pin MSOP PackageAPPLICATIONSSmart PhonesPDAsMP3 PlayersLow-Power Handheld Devices

企业名：湖人半导体（深圳）有限公司

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