BQ24125

アクティブ

EMI 特性強化済み、スタンドアロン、1 ~ 3 セル、2A 同期整流降圧バッテリ・チャージャ

製品詳細

Number of series cells 1, 2, 3 Charge current (max) (A) 2 Vin (max) (V) 16 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 2.1 Battery charge voltage (max) (V) 15.5 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 125
Number of series cells 1, 2, 3 Charge current (max) (A) 2 Vin (max) (V) 16 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 2.1 Battery charge voltage (max) (V) 15.5 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 125
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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技術資料

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種類 タイトル 最新の英語版をダウンロード 日付
* データシート bq2412x Single-Chip Switched-Mode, Li-Ion, and Li-Polymer Charge-Management IC With Enhanced EMI Performance (bqSWITCHER™) データシート (Rev. H) PDF | HTML 2015年 11月 30日
ユーザー・ガイド Using the bq24120/3 (bqSwitcher)(TM) (Rev. A) 2007年 11月 5日

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評価ボード

BQ24125EVM-003 — BQ24125 評価モジュール

The BQ24125 EVM helps you evaluate the performance of a charge managementsolution for portable applications using the BQ24120x product family. A complete, designed, and tested charger is presented. The charger can deliver up to 2 A of continuous output current and is programmed from the (...)

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

購入と品質

記載されている情報:
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 使用原材料
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報:
  • ファブの拠点
  • 組み立てを実施した拠点

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