BQ24100

アクティブ

スタンドアロン、1 セル、2A 同期整流降圧バッテリ チャージャ

製品詳細

Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 2 Features BAT temp thermistor monitoring (hot/cold profile), Input OVP Vin (min) (V) 4.35 Vin (max) (V) 16 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 85
Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 2 Features BAT temp thermistor monitoring (hot/cold profile), Input OVP Vin (min) (V) 4.35 Vin (max) (V) 16 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 85
VQFN (RHL) 20 15.75 mm² (4.5 mm × 3.5 mm)
  • Ideal For Highly Efficient Charger Designs For
    Single-, Two-, or Three-Cell Li-Ion and Li-Polymer
    Battery Packs
  • bq24105 Also for LiFePO4 Battery (see Using
    bq24105 to Charge the 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
  • Available in Both Stand-Alone (Built-In Charge
    Management and Control) and System-Controlled
    (Under System Command) Versions
  • 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
  • System-Controlled Version Can Be Used in NiMH
    and NiCd Applications
  • Reverse Leakage Protection Prevents Battery
    Drainage
  • Thermal Shutdown and Protection
  • Built-In Battery Detection
  • Available in 20-Pin, 3.50 mm × 4.50 mm VQFN
    Package
  • APPLICATIONS
    • Handheld Products
    • Portable Media Players
    • Industrial and Medical Equipment
    • Portable Equipment

All other trademarks are the property of their respective owners

  • Ideal For Highly Efficient Charger Designs For
    Single-, Two-, or Three-Cell Li-Ion and Li-Polymer
    Battery Packs
  • bq24105 Also for LiFePO4 Battery (see Using
    bq24105 to Charge the 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
  • Available in Both Stand-Alone (Built-In Charge
    Management and Control) and System-Controlled
    (Under System Command) Versions
  • 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
  • System-Controlled Version Can Be Used in NiMH
    and NiCd Applications
  • Reverse Leakage Protection Prevents Battery
    Drainage
  • Thermal Shutdown and Protection
  • Built-In Battery Detection
  • Available in 20-Pin, 3.50 mm × 4.50 mm VQFN
    Package
  • APPLICATIONS
    • Handheld Products
    • Portable Media Players
    • Industrial and Medical Equipment
    • Portable Equipment

All other trademarks are the property of their respective owners

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 VQFN package. The system-controlled version provides additional inputs for full charge management under system control.

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 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 VQFN package. The system-controlled version provides additional inputs for full charge management under system control.

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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技術資料

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上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート bq241xx Synchronous Switched-Mode, Li-Ion and Li-Polymer Charge-Management IC With Integrated Power FETs (bqSWITCHER™) データシート (Rev. P) PDF | HTML 2015/11/30
アプリケーション・ノート BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 2019/12/31
EVM ユーザー ガイド (英語) Using the bq241xx bqSWITCHER(tm) (Rev. A) 2007/11/29
アプリケーション・ノート Implementations of Battery Charger and Power-Path Mgmt System Using bq241xx 2006/06/06
アプリケーション・ノート Power Dissipation Analysis & Circuit Design for Sync Switching Battery Charger 2005/05/31

設計と開発

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評価ボード

BQ24100EVM — BQ24100 評価モジュール

The Texas Instruments bq24100EVM is the evaluation module (EVM) for the bq24100 Li-Ion charge management IC. The bq24100 is a highly integrated battery charge IC utilizing synchronous switch mode power conversion for efficient and comprehensive charge control of a single cell Li-Ion battery. (...)

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リファレンス・デザイン

TIDA-00055 — スタンドアロン同期整流スイッチ・モード、リチウムイオン・チャージャ(2 A FET付き)用リファレンス・デザイン

このリファレンス・デザインは、リチウムイオン充電マネージメント IC 用のソリューションです。この設計では、同期整流スイッチ・モード電源変換を利用した高集積バッテリ充電 IC を使用して、効率的かつ包括的にシングル・セル・リチウムイオン・バッテリの充電を制御します。このソリューションは、IC の動作および性能を評価する便利な方法を提供します。

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パッケージ ピン数 CAD シンボル、フットプリント、および 3D モデル
VQFN (RHL) 20 Ultra Librarian

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