BQ25792

アクティブ

デュアル入力セレクタと USB PD 3.0 OTG 出力採用、I2C 制御、5A、1 ~ 4 セル昇降圧チャージャ

製品の詳細

Number of series cells 1, 2, 3, 4 Charge current (Max) (A) 5 Operating Vin (Max) (V) 24 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (Min) (V) 3 Battery charge voltage (Max) (V) 18.8 Absolute Vin (safety rating) (Max) ((V)) 30 Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, USB C/PD compatible, USB D+/D-/BC1.2 integrated, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Operating Vin (Min) (V) 3.6 Rating Catalog
Number of series cells 1, 2, 3, 4 Charge current (Max) (A) 5 Operating Vin (Max) (V) 24 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (Min) (V) 3 Battery charge voltage (Max) (V) 18.8 Absolute Vin (safety rating) (Max) ((V)) 30 Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, USB C/PD compatible, USB D+/D-/BC1.2 integrated, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Operating Vin (Min) (V) 3.6 Rating Catalog
VQFN-HR (RQM) 29 16 mm² 4 x 4 VQFN-HR (RQM) 29
  • High power density, high integration buck-boost charger for 1-4 cell batteries supporting any USB PD 3.0 profile
    • Integrates four switching MOSFETs, BATFET
    • Integrates input and charging current sensing
  • Highly efficient
    • 750-kHz or 1.5-MHz switching frequencies
    • 5-A charging current with 10-mA resolution
      • 96.5% efficient: 16-V battery at 3A from 20V
  • Supports a wide range of input sources
    • 3.6-V to 24-V wide input operating voltage range with 30-V absolute maximum rating
    • Maximum power tracking with input voltage dynamic power management (VINDPM) up to 22 V and input current dynamic power management (IINDPM) up to 3.3 A
    • Detects USB BC1.2, SDP, CDP, DCP, HVDCP and non-standard adapters
  • Dual-input power mux controller (optional) for source selection
  • Narrow voltage DC (NVDC) power path management
  • Powers USB port from battery (USB OTG)
    • 2.8-V to 22-V OTG output voltage with 10-mV resolution to support USB-PD programmable power supply
    • OTG output current regulation up to 3.32 A with 40-mA resolution
  • Flexible autonomous and I2C mode for optimal system performance
  • Integrated 16-bit ADC for voltage, current, and temperature monitoring
  • Low battery quiescent current
    • 21 µA for battery only operation
    • 600 nA in Charger Shutdown Mode
  • High accuracy
    • +0.65% to -0.85% charge voltage regulation for 2s-4s batteries
    • ±5% charge current regulation
    • ±5% input current regulation
  • Safety
    • Thermal regulation and thermal shutdown
    • Input/battery OVP and OCP
    • Converter MOSFETs OCP
    • Charging safety timer
  • Package
    • 29-Pin 4 mm × 4 mm QFN
  • High power density, high integration buck-boost charger for 1-4 cell batteries supporting any USB PD 3.0 profile
    • Integrates four switching MOSFETs, BATFET
    • Integrates input and charging current sensing
  • Highly efficient
    • 750-kHz or 1.5-MHz switching frequencies
    • 5-A charging current with 10-mA resolution
      • 96.5% efficient: 16-V battery at 3A from 20V
  • Supports a wide range of input sources
    • 3.6-V to 24-V wide input operating voltage range with 30-V absolute maximum rating
    • Maximum power tracking with input voltage dynamic power management (VINDPM) up to 22 V and input current dynamic power management (IINDPM) up to 3.3 A
    • Detects USB BC1.2, SDP, CDP, DCP, HVDCP and non-standard adapters
  • Dual-input power mux controller (optional) for source selection
  • Narrow voltage DC (NVDC) power path management
  • Powers USB port from battery (USB OTG)
    • 2.8-V to 22-V OTG output voltage with 10-mV resolution to support USB-PD programmable power supply
    • OTG output current regulation up to 3.32 A with 40-mA resolution
  • Flexible autonomous and I2C mode for optimal system performance
  • Integrated 16-bit ADC for voltage, current, and temperature monitoring
  • Low battery quiescent current
    • 21 µA for battery only operation
    • 600 nA in Charger Shutdown Mode
  • High accuracy
    • +0.65% to -0.85% charge voltage regulation for 2s-4s batteries
    • ±5% charge current regulation
    • ±5% input current regulation
  • Safety
    • Thermal regulation and thermal shutdown
    • Input/battery OVP and OCP
    • Converter MOSFETs OCP
    • Charging safety timer
  • Package
    • 29-Pin 4 mm × 4 mm QFN

The BQ25792 is a fully integrated switch-mode buck-boost charger for 1-4 cell Li-ion batteries and Li-polymer batteries. The integration includes 4 switching MOSFETs (Q1, Q2, Q3, Q4), input and charging current sensing circuits, the battery FET (QBAT) and all the loop compensation of the buck-boost converter. It uses NVDC power path management, regulating the system slightly above the battery voltage without dropping below a configurable minimum system voltage. When system power exceeds the input source rating, battery supplement mode supports the system without overloading the input source. BQ25792supports the full input and output (OTG) voltage ranges for USB Type-C™ and USB power delivery (USB-PD) applications.

The charger supports the narrow VDC power path management, in which the system is regulated at a voltage slightly higher than the battery voltage without being allowed to drop below the minimum system voltage. The minimum system voltage allows the system to operate even when the battery is completely discharged or removed. When system power exceeds the input source rating, battery supplement mode supports the system power requirement without overloading the input source.

The device charges a battery from a wide range of the input sources including legacy USB adapter to high voltage USB PD adapter and traditional barrel adapter. The charger automatically sets converter to be buck, boost or buck-boost configurations based on input voltage and battery voltage without the host control. The dual input source selector manages the power flowing from two different input sources. The inputs selection is controlled by the host through I2C with default source #1 (VAC1) as the primary input and the source #2 (VAC2) as the secondary input.

To support fast charging using adjustable high voltage adapter, the device provides D+/D- handshake. The device is compliant with USB 2.0 and USB 3.0 power delivery specification with input current and voltage regulation. In addition, the Input Current Optimizer (ICO) allows the detection of maximum power point of an unknown input source.

Besides the I2C host controlled charging mode, this charger also supports autonomous charging mode. After power up, the charging is enabled with default register settings. The device can complete a charging cycle without any software engagements. It detects battery voltage and charges the battery in different phases: trickle charging, pre-charging, constant current (CC) charging and constant voltage (CV) charging. At the end of the charging cycle, the charger automatically terminates when the charge current is below a pre-set limit (termination current) in the constant voltage phase. When the full battery falls below the recharge threshold, the charger will automatically start another charging cycle.

In the absence of input sources, this device supports USB On-the-Go (OTG) function, discharging battery to generate an adjustable 2.8-V to 22-V voltage on VBUS with 10-mV step size, which is compliant to the USB PD 3.0 specification defined programmable power supply (PPS) feature.

The charger provides various safety features for battery charging and system operations, including battery temperature negative thermistor monitoring, trickle charge, pre-charge and fast charge timers and over-voltage/overcurrent protections on battery and input. The thermal regulation reduces charge current when the junction temperature exceeds a programmable threshold. The STAT output of the device reports the charging status and any fault conditions. The PG output indicates if a good power source is present. The INT pin immediately notifies host when fault occurs.

The device also provides a 16-bit analog-to-digital converter (ADC) for monitoring charge current and input/battery/system (VAC, VBUS, BAT, SYS, TS) voltages.

It is available in a 29-pin 4mm × 4mm QFN package.

The BQ25792 is a fully integrated switch-mode buck-boost charger for 1-4 cell Li-ion batteries and Li-polymer batteries. The integration includes 4 switching MOSFETs (Q1, Q2, Q3, Q4), input and charging current sensing circuits, the battery FET (QBAT) and all the loop compensation of the buck-boost converter. It uses NVDC power path management, regulating the system slightly above the battery voltage without dropping below a configurable minimum system voltage. When system power exceeds the input source rating, battery supplement mode supports the system without overloading the input source. BQ25792supports the full input and output (OTG) voltage ranges for USB Type-C™ and USB power delivery (USB-PD) applications.

The charger supports the narrow VDC power path management, in which the system is regulated at a voltage slightly higher than the battery voltage without being allowed to drop below the minimum system voltage. The minimum system voltage allows the system to operate even when the battery is completely discharged or removed. When system power exceeds the input source rating, battery supplement mode supports the system power requirement without overloading the input source.

The device charges a battery from a wide range of the input sources including legacy USB adapter to high voltage USB PD adapter and traditional barrel adapter. The charger automatically sets converter to be buck, boost or buck-boost configurations based on input voltage and battery voltage without the host control. The dual input source selector manages the power flowing from two different input sources. The inputs selection is controlled by the host through I2C with default source #1 (VAC1) as the primary input and the source #2 (VAC2) as the secondary input.

To support fast charging using adjustable high voltage adapter, the device provides D+/D- handshake. The device is compliant with USB 2.0 and USB 3.0 power delivery specification with input current and voltage regulation. In addition, the Input Current Optimizer (ICO) allows the detection of maximum power point of an unknown input source.

Besides the I2C host controlled charging mode, this charger also supports autonomous charging mode. After power up, the charging is enabled with default register settings. The device can complete a charging cycle without any software engagements. It detects battery voltage and charges the battery in different phases: trickle charging, pre-charging, constant current (CC) charging and constant voltage (CV) charging. At the end of the charging cycle, the charger automatically terminates when the charge current is below a pre-set limit (termination current) in the constant voltage phase. When the full battery falls below the recharge threshold, the charger will automatically start another charging cycle.

In the absence of input sources, this device supports USB On-the-Go (OTG) function, discharging battery to generate an adjustable 2.8-V to 22-V voltage on VBUS with 10-mV step size, which is compliant to the USB PD 3.0 specification defined programmable power supply (PPS) feature.

The charger provides various safety features for battery charging and system operations, including battery temperature negative thermistor monitoring, trickle charge, pre-charge and fast charge timers and over-voltage/overcurrent protections on battery and input. The thermal regulation reduces charge current when the junction temperature exceeds a programmable threshold. The STAT output of the device reports the charging status and any fault conditions. The PG output indicates if a good power source is present. The INT pin immediately notifies host when fault occurs.

The device also provides a 16-bit analog-to-digital converter (ADC) for monitoring charge current and input/battery/system (VAC, VBUS, BAT, SYS, TS) voltages.

It is available in a 29-pin 4mm × 4mm QFN package.

ダウンロード
Information

More information

  • If you would like to consider a universal standards compliant, up to 20V USB Type-C PD Port to power the charger, please consider TPS25750

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open-in-new 製品の比較
比較対象デバイスと同等の機能で、ピン配置が異なる製品。
BQ25790 アクティブ 統合型、NVDC、1 ~ 4 セル、5A スイッチ・モード昇降圧バッテリ・チャージャ 本製品は、WCSP パッケージです。

技術資料

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8 資料すべて表示
種類 タイトル 英語版のダウンロード 日付
* データシート BQ25792 I2C 制御、1~4 セル、5A 昇降圧バッテリ・チャージャ データシート (Rev. B) 2021年 3月 15日
アプリケーション・ノート BQ25155 Application Report 2021年 10月 11日
ユーザー・ガイド BQ25792EVM, BQ25798EVM and BQ25798BKUPEVM (BMS034) Evaluation Module (Rev. D) 2021年 9月 30日
技術記事 How to choose the right battery-charger IC for ultrasound point-of-care products 2021年 3月 24日
技術記事 Adding USB Type-C® with USB Power Delivery to battery-powered applications 2020年 11月 11日
ホワイト・ペーパー 昇降圧バッテリー充電器と USB Type-C™ パワーデリバリーを組み合わせて最大性能を実現 英語版をダウンロード 2020年 9月 2日
技術記事 Maximize power density with buck-boost charging and USB Type C™ Power Delivery 2020年 6月 29日
技術記事 Universal and fast charging – a future trend for battery-powered applications 2020年 6月 26日

設計と開発

追加の事項や他のリソースを参照するには、以下のタイトルをクリックすると、詳細ページを表示できます。

評価ボード

BQ25792EVM — I2C controlled, 5-A, 1-4 cell buck-boost charger evaluation module with dual-input selector

BQ25792 評価基板 (EVM) を使用すると、BQ25792 デバイスを評価できます。BQ25792 は、HotRod (QFN) パッケージに封止した、統合型のスイッチ・モード昇降圧バッテリ充電管理デバイスです。3.6V ~ 24V の入力を受け入れ、プログラマブルな 750kHz と 1500kHz のスイッチング周波数で動作し、1 ~ 4 個の直列セル・リチウムイオン / リチウムポリマ・バッテリで使用することを想定しています。I2C シリアル・インターフェイスを使用して充電とシステム設定を行うので、このデバイスは非常にフレキシビリティの高いソリューションを実現できます。
在庫あり
制限: 1
評価ボード

USB-PD-CHG-EVM-01 — 2 ~ 4 セルのバッテリ向け、USB Type-C® パワー・デリバリ (PD) と充電の統合型リファレンス・デザイン

USB-PD-CHG-EVM-01 評価基板 (EVM) は、BQ25792 デバイスと TPS25750 デバイスの組み合わせの評価に使用できます。BQ25792 は、HOTROD (QFN) パッケージに封止済みで統合型のスイッチ・モード昇降圧バッテリ充電管理デバイスであり、3.6 ~ 24V の入力電圧を受け入れる 1S ~ 4S (4 個の直列) セルのリチウムイオン / リチウムポリマ・バッテリを意図しています。TPS25750 は、USB Type-C と PD (パワー・デリバリ) のコントローラであり、内部で 20V/5A をソース (供給) およびシンク (吸い込み) (...)

アプリケーション・ソフトウェアとフレームワーク

BQSTUDIO — バッテリ・マネージメント・スタジオ(bqStudio)ソフトウェアスイート

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)
アプリケーション・ソフトウェアとフレームワーク

TI-CHARGER-GUI — GUI software for use with USB2ANY and battery charging evaluation modules

TI-CHARGER-GUI は、Web ベースまたはスタンドアロンのグラフィカル・ユーザー・インターフェイス (GUI) を実現し、各種バッテリ・チャージャ製品の評価、設計、構成、テストの各プロセスを支援します。このソフトウェアを使用すると、各レジスタへの包括的なアクセスや、コマンドの送信とシーケンス制御用の使いやすいインターフェイスが得られます。
リファレンス・デザイン

TIDA-050047 — 2 ~ 4 個のセル・バッテリ向け、統合型 USB Type-C® パワー・デリバリ (PD) と充電のリファレンス・デザイン

このリファレンス・デザインは、外部 FET をまったく必要とせずに最大 20V、5A の充電に対応し、ソリューション・サイズのかなりの小型化と BOM (部品表) コスト全体の削減に貢献します。また、TPS25750 パワー・デリバリ (PD) コントローラは、BQ25792 バッテリ・チャージャ IC との I2C 通信を取り扱うことができるので、マイクロプロセッサも不要です。この I2C 対応能力と、TPS25750 の Web ベース GUI は、ファームウェア開発プロセスの大幅な簡素化に貢献します。
パッケージ ピン数 ダウンロード
VQFN-HR (RQM) 29 オプションの表示

購入と品質

含まれる情報:
  • 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 rating/ リフローピーク温度
  • MTBF/FIT の推定値
  • 原材料組成
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果

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