ホーム バッテリ管理 IC バッテリ チャージャ IC
ホーム
バッテリ管理 IC
バッテリ チャージャ IC

BQ24171

アクティブ

JEITA 準拠、パワー パス搭載、スタンドアロン、1 ～ 3 セル、4A 同期整流降圧バッテリ チャージャ

ご注文はこちら
データシート

BQ24171

アクティブ
データシート ご注文はこちら

製品詳細

Rating Catalog Number of series cells 1, 2, 3 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 4 Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path Vin (min) (V) 4.5 Vin (max) (V) 17 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 2.1 Battery charge voltage (max) (V) 15.5 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 85
Rating Catalog Number of series cells 1, 2, 3 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 4 Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path Vin (min) (V) 4.5 Vin (max) (V) 17 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 2.1 Battery charge voltage (max) (V) 15.5 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 85
VQFN (RGY) 24 19.25 mm² (5.5 mm × 3.5 mm)
  • JEITA-Compatible Battery Temperature Sensing
  • 1.6-MHz Synchronous Switched-Mode Charger
    With 4-A Integrated N-MOSFETs
  • Up to 94% Efficiency
  • 30-V Input Rating With Adjustable Overvoltage
    Protection
    • 4.5-V to 17-V Input Operating Voltage
  • Battery Charge Voltage
    • Adjustable Charge Voltage up to 3-Series
      Cells
  • High Integration
    • Automatic Power Path Selector Between
      Adapter and Battery
    • Dynamic Power Management
    • Integrated 20-V Switching MOSFETs
    • Integrated Bootstrap Diode
    • Internal Loop Compensation
    • Internal Digital Soft Start
  • Safety
    • Thermal Regulation Loop Throttles Back
      Current to Limit TJ = 120°C
    • Thermal Shutdown
    • Battery Thermistor Sense Hot/Cold Charge
      Suspend and Battery Detect
    • Input Overvoltage Protection With
      Programmable Threshold
    • Cycle-by-Cycle Current Limit
  • Accuracy
    • ±0.5% Charge Voltage Regulation
    • ±4% Charge Current Regulation
    • ±4% Input Current Regulation
  • Less Than 15-µA Battery Current With Adapter
    Removed
  • Less Than 1.5-mA Input Current With Adapter
    Present and Charge Disabled
  • Small QFN Package
    • 24-Pin, 5.5-mm × 3.5-mm QFN Package
  • JEITA-Compatible Battery Temperature Sensing
  • 1.6-MHz Synchronous Switched-Mode Charger
    With 4-A Integrated N-MOSFETs
  • Up to 94% Efficiency
  • 30-V Input Rating With Adjustable Overvoltage
    Protection
    • 4.5-V to 17-V Input Operating Voltage
  • Battery Charge Voltage
    • Adjustable Charge Voltage up to 3-Series
      Cells
  • High Integration
    • Automatic Power Path Selector Between
      Adapter and Battery
    • Dynamic Power Management
    • Integrated 20-V Switching MOSFETs
    • Integrated Bootstrap Diode
    • Internal Loop Compensation
    • Internal Digital Soft Start
  • Safety
    • Thermal Regulation Loop Throttles Back
      Current to Limit TJ = 120°C
    • Thermal Shutdown
    • Battery Thermistor Sense Hot/Cold Charge
      Suspend and Battery Detect
    • Input Overvoltage Protection With
      Programmable Threshold
    • Cycle-by-Cycle Current Limit
  • Accuracy
    • ±0.5% Charge Voltage Regulation
    • ±4% Charge Current Regulation
    • ±4% Input Current Regulation
  • Less Than 15-µA Battery Current With Adapter
    Removed
  • Less Than 1.5-mA Input Current With Adapter
    Present and Charge Disabled
  • Small QFN Package
    • 24-Pin, 5.5-mm × 3.5-mm QFN Package

The bq24171 device is highly integrated stand-alone Li-ion and Li-polymer switched-mode battery charger with two integrated N-channel power MOSFETs. The device offers a constant-frequency synchronous PWM controller with high-accuracy regulation of input current, charge current, and voltage. The bq24171 closely monitors the battery pack temperature and allows charge only in a JEITA profile-compatible window with a lower charge rate at a low temperature and a lower charge voltage at a high temperature. The bq24171 device charges the battery in three phases: preconditioning, constant current, and constant voltage. The bq24171 charges up to 3-series cells with an adjustable cell voltage.

The bq24171 charges the battery in three phases: preconditioning, constant current, and constant voltage. The device is adjustable for up to three series Li+ cells.

Charge is terminated when the current reaches 10% of the fast charge rate. A programmable charge timer offers a safety backup. The bq24171 automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low-quiescent current sleep mode when the input voltage falls below the battery voltage.

The bq24171 features Dynamic Power Management (DPM) to reduce the charge current when the input power limit is reached to avoid overloading the adapter. A highly accurate current-sense amplifier enables precise measurement of input current from adapter to monitor overall system power.

The bq24171 device provides power path selector gate driver ACDRV/CMSRC on input NMOS pair ACFET (Q1) and RBFET (Q2), and BATDRV on a battery PMOS device (Q3). When the qualified adapter is present, the system is directly connected to the adapter. Otherwise, the system is connected to the battery. In addition, the power path prevents battery from boosting back to the input.

The bq24171 charges battery from DC source as high as 17 V, including car battery. The input overvoltage limit is adjustable through the OVPSET pin. The AVCC, ACP and ACN pins are 30-V rating. When a high-voltage DC source is inserted, Q1 and Q2 remain off to avoid high voltage damage to the system.

For 1-cell applications, if the battery is not removable, the system can be directly connected to the battery to simplify the power path design and reduce the cost. With this configuration, the battery can automatically supplement the system load if the adapter is overloaded.

The bq24171 is available in a 24-pin, 5.5-mm × 3.5-mm thin QFN package.

The bq24171 device is highly integrated stand-alone Li-ion and Li-polymer switched-mode battery charger with two integrated N-channel power MOSFETs. The device offers a constant-frequency synchronous PWM controller with high-accuracy regulation of input current, charge current, and voltage. The bq24171 closely monitors the battery pack temperature and allows charge only in a JEITA profile-compatible window with a lower charge rate at a low temperature and a lower charge voltage at a high temperature. The bq24171 device charges the battery in three phases: preconditioning, constant current, and constant voltage. The bq24171 charges up to 3-series cells with an adjustable cell voltage.

The bq24171 charges the battery in three phases: preconditioning, constant current, and constant voltage. The device is adjustable for up to three series Li+ cells.

Charge is terminated when the current reaches 10% of the fast charge rate. A programmable charge timer offers a safety backup. The bq24171 automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low-quiescent current sleep mode when the input voltage falls below the battery voltage.

The bq24171 features Dynamic Power Management (DPM) to reduce the charge current when the input power limit is reached to avoid overloading the adapter. A highly accurate current-sense amplifier enables precise measurement of input current from adapter to monitor overall system power.

The bq24171 device provides power path selector gate driver ACDRV/CMSRC on input NMOS pair ACFET (Q1) and RBFET (Q2), and BATDRV on a battery PMOS device (Q3). When the qualified adapter is present, the system is directly connected to the adapter. Otherwise, the system is connected to the battery. In addition, the power path prevents battery from boosting back to the input.

The bq24171 charges battery from DC source as high as 17 V, including car battery. The input overvoltage limit is adjustable through the OVPSET pin. The AVCC, ACP and ACN pins are 30-V rating. When a high-voltage DC source is inserted, Q1 and Q2 remain off to avoid high voltage damage to the system.

For 1-cell applications, if the battery is not removable, the system can be directly connected to the battery to simplify the power path design and reduce the cost. With this configuration, the battery can automatically supplement the system load if the adapter is overloaded.

The bq24171 is available in a 24-pin, 5.5-mm × 3.5-mm thin QFN package.
filter その他の バッテリ チャージャ IC を検索
ダウンロード 字幕付きのビデオを表示 ビデオ

お客様が関心を持ちそうな類似品

open-in-new 代替品と比較
比較対象デバイスにアップグレード機能を搭載した、ドロップ・イン代替製品。
BQ24172 アクティブ スタンドアロン、1 ～ 3 セル、4A 同期整流降圧バッテリ チャージャ BQ24172 has integrated JEITA functionality.
比較対象デバイスと類似の機能。
BQ25306 アクティブ スタンドアロン、17V、3A、1 ～ 2 セル、降圧バッテリ チャージャ This product is a 3-A, two-series standalone buck switching charger with integrated sense resistor, small footprint with integrated MOSTFET
BQ24616 アクティブ JEITA 準拠、スタンドアロン、1 ～ 6 セル、降圧バッテリ充電コントローラ This product is a 10 A, six-series standalone buck switching controller with JEITA

技術資料

結果が見つかりませんでした。検索条件をクリアしてから、再度検索を試してください。
2 をすべて表示
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 bq24171 JEITA-Compliant Stand-Alone, Switched-Mode Li-Ion and Li-Polymer Battery Charger With Integrated MOSFETs and Power Path Selector データシート (Rev. C) PDF | HTML 2014/10/28
アプリケーション・ノート BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 2019/12/31

設計と開発

その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。

評価ボード

BQ24171EVM-706-15V — 評価モジュール、bq24171 用、JEITA 準拠スタンドアロン、スイッチ・モード、リチウムイオンおよびリチウムポリマー・バッテリー

The Texas Instruments BQ24171EVM-706-15V (-003) evaluation module helps designers evaluate the operation and performance of the bq24171 synchronous battery charger. The EVM is also called the HPA706 (-003). This EVM is optimized for a 12V or 15V input voltage and charges between 1 and 3 cell (...)

ユーザー ガイド: PDF
サポート対象の製品とハードウェア
在庫あり
制限：
??asset.out-of-stock-ti_ja_JP??
入手不可
計算ツール

SLUC244 — bqswitcherII calculation tools V1.2

サポート対象の製品とハードウェア
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 (RGY) 24 Ultra Librarian
TI の評価基板に関する標準契約約款が適用されます。

購入と品質

推奨製品には、この TI 製品に関連するパラメータ、評価基板、またはリファレンス デザインが存在する可能性があります。

サポートとトレーニング

TI E2E™ フォーラムでは、TI のエンジニアからの技術サポートを提供

投稿されたすべてのフォーラムトピック (英語) を表示

コンテンツは、TI 投稿者やコミュニティ投稿者によって「現状のまま」提供されるもので、TI による仕様の追加を意図するものではありません。使用条件をご確認ください。

TI 製品の品質、パッケージ、ご注文に関するお問い合わせは、TI サポートをご覧ください。​​​​​​​​​​​​​​

ビデオ