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BQ24105-Q1 - 产品图解：
BQ24105-Q1-具有 2A FET 的汽车类独立同步开关模式锂离子充电器，采用 QFN-20 封装，1 至 3 节电池
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TI产品 - BQ24105-Q1介绍

BQ24105-Q1 - 具有 2A FET 的汽车类独立同步开关模式锂离子充电器，采用 QFN-20 封装，1 至 3 节电池

BQ24105-Q1是TI德州仪器公司的一款电池充电器IC产品，BQ24105-Q1是具有 2A FET 的汽车类独立同步开关模式锂离子充电器，采用 QFN-20 封装，1 至 3 节电池，本站介绍了BQ24105-Q1的封装应用图解、特点和优点、功能等，并给出了与BQ24105-Q1相关的TI元器件型号供参考。

BQ24105-Q1 - 具有 2A FET 的汽车类独立同步开关模式锂离子充电器，采用 QFN-20 封装，1 至 3 节电池 - 电池充电器IC - 电池管理产品 - 德州仪器

产品描述

The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package.

The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user-selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER automatically enters sleep mode when VCC supply is removed.

产品特性

  • Qualified for Automotive Applications
  • Ideal For Highly Efficient Charger Designs For Single-, Two-, or Three-Cell Li-Ion and Li-Polymer Battery Packs
  • Also for LiFePO4 Battery (see Using bq24105 to Charge LiFePO4 Battery)
  • Integrated Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle
  • Integrated Power FETs For Up To 2-A Charge Rate
  • High-Accuracy Voltage and Current Regulation
  • Stand-Alone (Built-In Charge Management and Control) Version
  • Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions
  • 20-V Maximum Voltage Rating on IN and OUT Pins
  • High-Side Battery Current Sensing
  • Battery Temperature Monitoring
  • Automatic Sleep Mode for Low Power Consumption
  • Reverse Leakage Protection Prevents Battery Drainage
  • Thermal Shutdown and Protection
  • Built-In Battery Detection
  • Available in 20-Pin, 3.5 mm × 4.5 mm, QFN Package

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