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BQ24090

具有 10kΩ NTC 的 1 A 单输入单节锂离子电池充电器 | 锂离子线性电池充电器 IC

BQ24090产品信息

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.特性Charging 1% Charge Voltage Accuracy10% Charge Current AccuracyPin Selectable USB 100-mA and 500-mA Maximum Input Current LimitProgrammable Termination and Precharge ThresholdProtection 6.6 V Over-Voltage ProtectionInput Voltage Dynamic Power Management125°C Thermal Regulation; 150°C Thermal Shutdown ProtectionOUT Short-Circuit Protection and ISET Short Detection Operation 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 DevicesAll other trademarks are the property of their respective owners

BQ24090电路图、引脚图和封装图

BQ24090开发工具

BQ24090EVM

BQ24090EVM
描述

 查看BQ24090EVM

BQ24090EVM 用户指南介绍了 bq24090 评估模块 (EVM)、如何执行独立评估或与主机或系统交互。该充电器设计为在 ISET 引脚上设定电阻以及在出厂时设定好 ~540mA 时向电池输出提供高达 1000mA 的连续电流。USB 电流限制模式由 ISET2 引脚选择,并将电流限制为最大 500mA(逻辑高电平)或 100mA(浮点或高阻抗)。ISET2 引脚上的低电阻使用 ISET 电阻对充电电流进行编程。

开发工具购买
产品型号描述报价RoHS操作
BQ24090EVMBQ24090评估模块¥0.0000购买

BQ24090技术资料

BQ24090应用案例 更多案例 

BQ24090关联型号

图片型号描述制造商参考价格操作
BQ24090DGQRBQ24090DGQRCharger IC Lithium-ITI0.38查看详情
BQ24090DGQTBQ24090DGQTIC BATT CHRGR LI-IONTI0.46查看详情
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