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电池充电器 IC

BQ24120

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具有增强型 EMI 性能的独立 1 至 2 节 2A 同步降压电池充电器

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数据表

BQ24120

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数据表 立即订购

产品详情

Number of series cells 1 Charge current (max) (A) 2 Vin (max) (V) 16 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), Input OVP Vin (min) (V) 4.35 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 2 Vin (max) (V) 16 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), Input OVP Vin (min) (V) 4.35 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RHL) 20 15.75 mm² 4.5 x 3.5
  • 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
  • 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

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.

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.
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类型 标题 下载最新的英语版本 日期
* 数据表 bq2412x Single-Chip Switched-Mode, Li-Ion, and Li-Polymer Charge-Management IC With Enhanced EMI Performance (bqSWITCHER™) 数据表 (Rev. H) PDF | HTML 2015年 11月 30日
用户指南 Using the bq24120/3 (bqSwitcher)(TM) (Rev. A) 2007年 11月 5日
应用手册 Implementations of Battery Charger and Power-Path Mgmt System Using bq241xx 2006年 6月 6日

设计和开发

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封装 引脚 CAD 符号、封装和 3D 模型
VQFN (RHL) 20 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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