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BQ24271YFFT

  • 描述:电池化学物质成份: 锂离子 电池数量: one 最大充电电流: 1.5A 最小电源电压: 6V 供应商设备包装: 49-DSBGA(2.8x2.8) 安装类别: 表面安装
  • 品牌: 德州仪器 (Texas)
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 57

数量 单价 合计
250+ 46.72510 11681.27675
  • 库存: 9490
  • 单价: ¥38.38737
  • 数量:
    - +
  • 总计: ¥2,188.08
在线询价

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规格参数

  • 部件状态 可供货
  • 电池数量 one
  • 连接口 IOC
  • 安装类别 表面安装
  • 电池化学物质成份 锂离子
  • 电流属性充电性能 常量-可编程
  • 可编程功能 当前的
  • 工作温度 -40摄氏度~85摄氏度(TA)
  • 最大充电电流 1.5A
  • 制造厂商 德州仪器 (Texas)
  • 电池包电压值 3.7伏
  • 最小电源电压 6V
  • 故障保护 温度过高、电压过高、短路
  • 包装/外壳 49-UFBGA,DSBGA
  • 供应商设备包装 49-DSBGA(2.8x2.8)

BQ24271YFFT 产品详情

The bq24270 and bq24271 are highly integrated single cell Li-Ion battery charger and system power path management devices targeted for space-limited, portable applications with high capacity batteries. The single cell charger has several input current limits which allow operation from either a USB port or higher power input supply (i.e. AC adapter or wireless charging input) for a versatile solution.

The power path management feature allows the bq24270 and bq24271 to power the system from a high efficiency DC to DC converter while simultaneously and independently charging the battery. The charger monitors the battery current at all times and reduces the charge current when the system load requires current above the input current limit. This allows for proper charge termination and timer operation. The system voltage is regulated to the battery voltage but will not drop below 3.5 V. This minimum system voltage support enables the system to run with a defective or absent battery pack and enables instant system turn-on even with a totally discharged battery or no battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents. This enables the use of a smaller adapter. The charge parameters are programmable using the I2C interface

The battery is charged in three phases: precharge, fast charge constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded. Additionally, a voltage-based battery pack thermistor monitoring input (TS) is included that monitors battery temperature for safe charging The TS function for bq24270 and bq24271 are JEITA compatible.

Feature

  • High-Efficiency Switch Mode Charger with Separate Power Path Control
    • Make a GSM Call with a Deeply Discharged Battery or No Battery
    • Instantly Start up the System from a Deeply Discharged Battery or No Battery
  • Highly Integrated Battery N-Channel MOSFET Controller for Power Path Management
    • 20 V input rating, with 6.5 V Overvoltage Protection (OVP)
    • Integrated FETs for Up to 1.5 A Charge Rate
  • Safe and Accurate Battery Management Functions
    • 0.5% Battery Regulation Accuracy
    • 10% Charge Current Accuracy
  • Charge Parameters Programmed Using I2C Interface
    • Charge Voltage, Current, Termination Threshold, Input Current Limit, VINDPM Threshold
  • Voltage-based, NTC Monitoring Input
    • JEITA Compatible
  • Thermal Regulation Protection for Output Current Control
  • BAT Short-Circuit Protection
  • Soft-Start Feature to Reduce Inrush Current
  • Thermal Shutdown and Protection
  • Available in Small 2.8 mm x 2.8 mm 49-ball WCSP or 4 mm × 4 mm QFN-24 Packages
Description

The bq24270 and bq24271 are highly integrated single cell Li-Ion battery charger and system power path management devices targeted for space-limited, portable applications with high capacity batteries. The single cell charger has several input current limits which allow operation from either a USB port or higher power input supply (i.e. AC adapter or wireless charging input) for a versatile solution.

The power path management feature allows the bq24270 and bq24271 to power the system from a high efficiency DC to DC converter while simultaneously and independently charging the battery. The charger monitors the battery current at all times and reduces the charge current when the system load requires current above the input current limit. This allows for proper charge termination and timer operation. The system voltage is regulated to the battery voltage but will not drop below 3.5 V. This minimum system voltage support enables the system to run with a defective or absent battery pack and enables instant system turn-on even with a totally discharged battery or no battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents. This enables the use of a smaller adapter. The charge parameters are programmable using the I2C interface

The battery is charged in three phases: precharge, fast charge constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded. Additionally, a voltage-based battery pack thermistor monitoring input (TS) is included that monitors battery temperature for safe charging The TS function for bq24270 and bq24271 are JEITA compatible.


BQ24271YFFT所属分类:电池充电控制/管理芯片,BQ24271YFFT 由 德州仪器 (Texas) 设计生产,可通过久芯网进行购买。BQ24271YFFT价格参考¥38.387370,你可以下载 BQ24271YFFT中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询BQ24271YFFT规格参数、现货库存、封装信息等信息!

德州仪器 (Texas)

德州仪器 (Texas)

德州仪器公司(TI)是一家开发模拟IC和嵌入式处理器的全球半导体设计和制造公司。通过雇用世界上最聪明的人,TI创造了塑造技术未来的创新。如今,TI正在帮助超过10万名客户改变未来。

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