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BQ24172 - 产品图解：
BQ24172-1.6MHz 同步开关模式锂离子和锂聚合物独立电池充电器
BQ24172-电池充电器IC-电池管理产品-电源管理
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TI产品 - BQ24172介绍

BQ24172 - 1.6MHz 同步开关模式锂离子和锂聚合物独立电池充电器

BQ24172是TI德州仪器公司的一款电池充电器IC产品，BQ24172是1.6MHz 同步开关模式锂离子和锂聚合物独立电池充电器，本站介绍了BQ24172的封装应用图解、特点和优点、功能等，并给出了与BQ24172相关的TI元器件型号供参考。

BQ24172 - 1.6MHz 同步开关模式锂离子和锂聚合物独立电池充电器 - 电池充电器IC - 电池管理产品 - 德州仪器

产品特性
  • 1.6-MHz Synchronous Switched-Mode Charger with 4-A Integrated N-MOSFETs
  • Up to 94% Efficiency
  • 30-V Input Rating with Adjustable Overvoltage Protection
    • 4.5-V to 17-V Input Operating Voltage Range
  • Battery Charge Voltage
    • bq24170: 1-, 2-, or 3-Cell with 4.2 V/Cell
    • bq24172: Adjustable Charge Voltage
  • High Integration
    • Automatic Power Path Selector Between Adapter and Battery
    • Dynamic Power Management
    • Integrated 20-V Switching MOSFETs
    • Integrated Bootstrap Diode
    • Internal Digital Soft Start
  • Safety
    • Thermal Regulation Loop Throttles Back Current to Limit TJ = 120°C
    • Thermal Shutdown
    • Battery Thermistor Sense Hot/Cold Charge Suspend and Battery Detect
    • Adjustable Input Overvoltage Protection
    • Cycle-by-Cycle Current Limit
  • Accuracy
    • ±0.5% Charge Voltage Regulation
    • ±4% Charge Current Regulation
    • ±4% Input Current Regulation
  • <15-μA Battery Current With Adapter Removed
  • <1.5-mA Input Current With Adapter Present and Charge Disabled
产品应用
  • Tablet PCs
  • Portable Data Capture Terminals
  • Portable Printers
  • Medical Diagnostics Equipment
  • Battery Bay Chargers
  • Battery Backup Systems
产品说明

The bq2417x device is a highly integrated stand-alone Li-Ion and Li-Polymer switched-mode battery charger with two integrated N-channel power MOSFETs. The device offers a constant-frequency synchronous PWM controller with high-accuracy regulation of input current, charge current, and voltage. The bq2417x closely monitors the battery pack temperature to allow charge only in a preset temperature window. The bq24170 charges one, two, or three cells (selected by CELL pin), and the bq24172 is adjustable for up to three series Li+ cells.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
bq24170VQFN (24)5.50 mm × 3.50 mm
bq24172
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