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BQ24123 - 产品图解：
BQ24123-具有增强的 EMI 性能的同步开关模式锂离子充电器，1 节或 2 节电池
BQ24123-电池充电器IC-电池管理产品-电源管理
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TI产品 - BQ24123介绍

BQ24123 - 具有增强的 EMI 性能的同步开关模式锂离子充电器，1 节或 2 节电池

BQ24123是TI德州仪器公司的一款电池充电器IC产品，BQ24123是具有增强的 EMI 性能的同步开关模式锂离子充电器，1 节或 2 节电池，本站介绍了BQ24123的封装应用图解、特点和优点、功能等，并给出了与BQ24123相关的TI元器件型号供参考。

BQ24123 - 具有增强的 EMI 性能的同步开关模式锂离子充电器，1 节或 2 节电池 - 电池充电器IC - 电池管理产品 - 德州仪器

产品特性
  • Enhanced EMI Performance
  • Integrated Power FETs For Up To 2-A Charge Rate
  • Suitable For 1-, 2-, or 3-Cell Li-Ion and Li-Polymer Battery Packs
  • Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle
  • High-Accuracy Voltage and Current Regulation
  • Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions
  • 20-V Absolute Maximum Voltage Rating on IN and OUT Pins
  • Accurate 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 VQFN Package
产品应用
  • Handheld Products
  • Portable Media Players
  • Industrial and Medical Equipment
  • Portable Equipment
  • Portable DVD Players
产品说明

The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switched-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.

Device Information (1)
PART NUMBERPACKAGEBODY SIZE (NOM)
bq2412xVQFN (20)3.50 mm × 4.50 mm
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