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BQ24090DGQT  电池管理产品 IC BATT CHRGR LIION 10MSOP
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 PCS
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US $0.00
 
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電源管理
產品詳情
型號BQ24090DGQT
封装10-MSOP-PowerPad
品牌Texas Instruments
描述电池管理产品 IC BATT CHRGR LI-ION 10MSOP
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Texas Instruments BQ24090DGQT

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.

德克萨斯仪器bq24090dgqt
设备的bq2409x系列是高度集成的锂离子和Li Pol线性充电器装置针对空间有限的便携式应用。这些设备从USB端口或AC适配器操作。输入过压保护的高输入电压范围支持低成本无管制适配器。
的bq2409x具有一个输出功率为电池充电。系统负载可以与电池并联,只要系统的平均负载不会使电池在10小时的安全计时器中完全充电。
电池分为三个阶段:调节、恒流和恒压。在所有充电阶段,内部控制回路监视IC结温,如果内部温度阈值超过,则降低充电电流。
充电器的功率级和充电电流检测功能是完全集成的。充电器功能具有高精度的电流和电压调节回路,充电状态显示和充电终止。预充电电流和终止电流阈值是通过外部电阻编程的。快速充电电流值也可通过外部电阻编程。

 
 
 

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