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電池管理 IC
電池充電器 IC

BQ25731

現行

具有 USB type-C PD 支援的 I2C 1-5 芯 NVDC 升壓-降壓電池充電控制器

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產品規格表

BQ25731

現行
產品規格表 立即訂購

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 x 4
  • 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 日期
* Data sheet 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年 1月 28日
Application note Finding the Correct Battery Charging Design to Power Vacuum Robot System PDF | HTML 2024年 3月 4日
Application note Layout Guide for Buck-Boost Charger BQ257XX Series PDF | HTML 2024年 1月 30日
Product overview Scalable Battery Backup Subsystem With Adjustable Output (Rev. A) PDF | HTML 2023年 10月 16日
Technical article Adding USB Type-C® with USB Power Delivery to battery-powered applications PDF | HTML 2020年 11月 11日
Certificate BQ25731EVM EU Declaration of Conformity (DoC) 2020年 6月 19日

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) 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 (...)

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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) 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 (...)

支援產品和硬體

支援產品和硬體
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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。
在雲端評估
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。
Design guide: PDF
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。
Test report: PDF
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。
Test report: PDF
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WQFN (RSN) 32 Ultra Librarian
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