產品詳細資料

Rating Catalog Number of series cells 1, 2, 3, 4, 5 Cell chemistry Lead Acid, Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiCd, NiMH, SuperCap Charge current (max) (A) 16.2 Features IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, USB C/PD compatible, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.5 Vin (max) (V) 26 Absolute max Vin (max) (V) 32 Control topology Switch-Mode Buck-boost Battery charge voltage (min) (V) 1.024 Battery charge voltage (max) (V) 23 Control interface I2C Operating temperature range (°C) -40 to 85
Rating Catalog Number of series cells 1, 2, 3, 4, 5 Cell chemistry Lead Acid, Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiCd, NiMH, SuperCap Charge current (max) (A) 16.2 Features IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, USB C/PD compatible, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.5 Vin (max) (V) 26 Absolute max Vin (max) (V) 32 Control topology Switch-Mode Buck-boost Battery charge voltage (min) (V) 1.024 Battery charge voltage (max) (V) 23 Control interface I2C Operating temperature range (°C) -40 to 85
WQFN (RSN) 32 16 mm² (4 mm × 4 mm)
  • No battery MOSFET for saving cost and high efficiency
  • 400-kHz/800-kHz programmable switching frequency for high efficiency/high power density
  • Buck-boost charger for USB-C Power Delivery (PD) interface platform
    • 3.5-V to 26-V input range to charge 1- to 5-cell battery
    • Charge current up to 16.2 A/8.1 A with 128-mA/64-mA resolution based on 5-mΩ/10-mΩ sensing resistor
    • Input current limit up to 10 A/6.35 A with 100-mA/50-mA resolution based on 5-mΩ/10-mΩ sensing resistor
    • Support USB 2.0, USB 3.0, USB 3.1 and USB Power Delivery (PD)
    • Input Current Optimizer (ICO) to extract max input power without overloading the adapter
    • Seamless transition between buck, buck-boost, and boost operations
    • Input current and voltage regulation (IINDPM and VINDPM) against source overload
  • TI patented switching frequency dithering pattern for EMI noise reduction
  • TI patented Pass Through Mode (PTM) for system power efficiency improvement and battery fast charging achieving 99% efficiency.
  • Input and battery current monitor through dedicated pins
  • Integrated 8-bit ADC to monitor voltage, current and power
  • Support independent comparator logic with dedicated pins
  • Power up USB port from battery (USB OTG)
    • 3-V to 24-V OTG with 8-mV resolution
    • Output current limit up to 12.7 A/6.35 A with 100-mA/50-mA resolution based on 5-mΩ/10-mΩ sensing resistor
  • I2C host control interface for flexible system configuration
  • High accuracy for the regulation and monitor
    • ±0.5% Charge voltage regulation
    • ±3% Charge current regulation
    • ±2.5% Input current regulation
    • ±2% Input/charge current monitor
  • Safety
    • Thermal shutdown
    • Input, system, battery overvoltage protection
    • Input, MOSFET, inductor overcurrent protection
  • Package: 32-Pin 4.0 mm × 4.0 mm WQFN
  • No battery MOSFET for saving cost and high efficiency
  • 400-kHz/800-kHz programmable switching frequency for high efficiency/high power density
  • Buck-boost charger for USB-C Power Delivery (PD) interface platform
    • 3.5-V to 26-V input range to charge 1- to 5-cell battery
    • Charge current up to 16.2 A/8.1 A with 128-mA/64-mA resolution based on 5-mΩ/10-mΩ sensing resistor
    • Input current limit up to 10 A/6.35 A with 100-mA/50-mA resolution based on 5-mΩ/10-mΩ sensing resistor
    • Support USB 2.0, USB 3.0, USB 3.1 and USB Power Delivery (PD)
    • Input Current Optimizer (ICO) to extract max input power without overloading the adapter
    • Seamless transition between buck, buck-boost, and boost operations
    • Input current and voltage regulation (IINDPM and VINDPM) against source overload
  • TI patented switching frequency dithering pattern for EMI noise reduction
  • TI patented Pass Through Mode (PTM) for system power efficiency improvement and battery fast charging achieving 99% efficiency.
  • Input and battery current monitor through dedicated pins
  • Integrated 8-bit ADC to monitor voltage, current and power
  • Support independent comparator logic with dedicated pins
  • Power up USB port from battery (USB OTG)
    • 3-V to 24-V OTG with 8-mV resolution
    • Output current limit up to 12.7 A/6.35 A with 100-mA/50-mA resolution based on 5-mΩ/10-mΩ sensing resistor
  • I2C host control interface for flexible system configuration
  • High accuracy for the regulation and monitor
    • ±0.5% Charge voltage regulation
    • ±3% Charge current regulation
    • ±2.5% Input current regulation
    • ±2% Input/charge current monitor
  • Safety
    • Thermal shutdown
    • Input, system, battery overvoltage protection
    • Input, MOSFET, inductor overcurrent protection
  • Package: 32-Pin 4.0 mm × 4.0 mm WQFN

The BQ25731 is a synchronous buck-boost battery charge controller to charge a 1- to 5-cell battery from a wide range of input sources including USB adapter, high voltage USB-C Power Delivery (PD) sources, and traditional adapters. It offers a low component count, high efficiency solution for space constrained, 1- to 5-cell battery charging applications.

During power up, the charger sets the converter to a buck, boost, or buck-boost configuration based on the input source and battery conditions. The charger seamlessly transits between the buck, boost, and buck-boost operation modes without host control.

The BQ25731 is a synchronous buck-boost battery charge controller to charge a 1- to 5-cell battery from a wide range of input sources including USB adapter, high voltage USB-C Power Delivery (PD) sources, and traditional adapters. It offers a low component count, high efficiency solution for space constrained, 1- to 5-cell battery charging applications.

During power up, the charger sets the converter to a buck, boost, or buck-boost configuration based on the input source and battery conditions. The charger seamlessly transits between the buck, boost, and buck-boost operation modes without host control.

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更多資訊

  • 若您想考慮使用符合通用標準、高達 20V 的 USB Type-C PD 埠為充電器供電,請考慮 TPS25750

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BQ25730 現行 具有電源路徑和 USB-C ® PD OTG 的 I²C 1-5 芯 NVDC 降壓-升壓電池充電控制器 This product has power path.

技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 BQ25731 I2C 1- to 5-Cell Buck-Boost Battery Charge Controller with USB-C PD 3.0 OTG Output datasheet (Rev. A) PDF | HTML 2021/1/28
應用說明 Finding the Correct Battery Charging Design to Power Vacuum Robot System PDF | HTML 2024/3/4
應用說明 Layout Guide for Buck-Boost Charger BQ257XX Series PDF | HTML 2024/1/30
Product overview Scalable Battery Backup Subsystem With Adjustable Output (Rev. A) PDF | HTML 2023/10/16
技術文章 Adding USB Type-C® with USB Power Delivery to battery-powered applications PDF | HTML 2020/11/11
證書 BQ25731EVM EU Declaration of Conformity (DoC) 2020/6/19

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

BQ25731EVM — I2C NVDC 1 至 5 芯、16-A、降壓-升壓充電器控制器評估模組

BQ25731EVM 評估模組 (EVM) 是一款具有 N 通道 MOSFET 選擇器和電流監控功能的 I2C 控制的 NVDC (窄電壓 DC) 降壓升壓充電控制器。降壓轉換器的輸入電壓範圍介於 3.5 V 和 26 V 之間,具有 1 至 5 個電池芯的可編程輸出,以及 128 mA 至 15 A 的充電輸出電流範圍。此 EVM 不包含 EV2400 介面裝置;必須單獨訂購才能評估 BQ25731 EVM。
使用指南: PDF | HTML
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應用軟體及架構

BQSTUDIO-STABLE — Battery Management Studio (bqStudio) Software – stable version downloads for bq series of TI battery fuel gauges

Battery Management Studio (bqStudio) 提供全套的強固工具,可協助評估、設計、配置、測試或使用 TI 電池管理產品的程序。其中包括可提供暫存器及資料記憶體完整存取的功能,包括支援即時觀看、繪圖和記錄、傳送命令的簡易介面、直接低階通訊和 I/O,以及用於配置、校準和執行學習週期的自動化和引導支援,進而產生實用的檔案,以利裝置投入生產。

在 bqStudio 中也支援舊產品,如 bq20xxx 和 bq30xxx。從適當的產品頁面下載特定的評估軟體。此外,您為 bqStudio 下載的最新化學更新程式需要 bqStudio 的更新版。

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應用軟體及架構

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads

Battery Management Studio (bqStudio) 提供全套的強固工具,可協助評估、設計、配置、測試或使用 TI 電池管理產品的程序。其中包括可提供暫存器及資料記憶體完整存取的功能,包括支援即時觀看、繪圖和記錄、傳送命令的簡易介面、直接低階通訊和 I/O,以及用於配置、校準和執行學習週期的自動化和引導支援,進而產生實用的檔案,以利裝置投入生產。

在 bqStudio 中也支援舊產品,如 bq20xxx 和 bq30xxx。從適當的產品頁面下載特定的評估軟體。此外,您為 bqStudio 下載的最新化學更新程式需要 bqStudio 的更新版。

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應用軟體及架構

TI-CHARGER-GUI — 適於與 USB2ANY 和電池充電搭配使用的 GUI 軟體評估模組

TI-CHARGER-GUI 提供網路型或獨立式圖形使用者介面,協助評估、設計、配置或測試電池充電器產品。該軟體提供暫存器的完整存取權,以及用於傳送及排序指令的簡易介面。
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參考設計

PMP22805 — 配備 USB 隨插即用 (OTG) 的 24-VIN、240-W、98% 效率、精巧型 5S 電池充電器參考設計

此電池充電器參考設計專為 5 至 24-VIN、240-W 電動工具而設計,該工具配備 BQ25731 一至五芯 NVDC 降壓升壓電池充電控制器。這是高功率、高效率及高密度設計。PMP22805 以 98% 的效率提供 240 W 功率,適合精巧的 1.08 英吋 x 1.68 英吋 (27.4 公釐 x 42.7 公釐) 體積外型。USB 隨插即用 (OTG) 功能使其成為行動電源。它是以高功率、高效率和高密度為首要優先考量的電動工具的理想選擇。此參考設計支援 1 至 5S 電池,並接受如 USB Type-C® PD 介面等的寬輸入範圍。
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參考設計

PMP41013 — 適用於 1 至 5 芯電池的整合式 USB Type-C® 和 USB PD 雙向充電參考設計

此參考設計是一款整合 USB Type-C® 電力輸送 (PD) 和充電參考設計 (使用一至五節電池),適合 USB Type-C 埠的電動工具充電器、真空吸塵器、可攜式充電器等領域之應用。
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參考設計

TIDA-010240 — 可擴充多組智慧型電池充電器參考設計

隨身行李通常不允許放置超過 100 瓦時數 (Wh) 的鋰電池,而此規定的任何例外情況均由航空公司自行裁定,並需事先獲得核准。此參考設計是一種智慧型高效率充電器設計,適用於高達 100 Wh 的雙智慧電池組,以平行配置的 1S–5S 鋰離子 (Li-ion) 電池形式實作。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RSN) 32 Ultra Librarian

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