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電池管理 IC
電池充電器 IC

BQ25895

現行

具有高輸入電壓和 3.1-A 升壓且啓用 HVDCP 的 I2C 1 芯 5A 降壓電池充電器

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產品規格表

BQ25895

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 5 Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, Solar input/MPPT, USB D+/D-/BC1.2 integrated, USB OTG integrated Vin (min) (V) 3.9 Vin (max) (V) 14 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 3.84 Battery charge voltage (max) (V) 4.6 Control interface I2C Operating temperature range (°C) -40 to 85
Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 5 Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, Solar input/MPPT, USB D+/D-/BC1.2 integrated, USB OTG integrated Vin (min) (V) 3.9 Vin (max) (V) 14 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 3.84 Battery charge voltage (max) (V) 4.6 Control interface I2C Operating temperature range (°C) -40 to 85
WQFN (RTW) 24 16 mm² (4 mm × 4 mm)
  • High efficiency 5-A, 1.5-MHz switch mode buck charge
    • 93% Charge efficiency at 2 A and 91% charge efficiency at 3 A charge current
    • Optimize for high voltage input (9 V to 12 V)
    • Low Power PFM Mode for light load operations
  • Boost Mode operation with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-KHz to 1.5-MHz boost converter with up to 3.1-A output
    • 93% Boost efficiency at 5 V at 1 A output
  • Integrated control to switch between charge and Boost Mode
  • Single input to support USB input and adjustable high voltage adapters
    • Support 3.9-V to 14-V input voltage range
    • Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
    • Maximum power tracking by input voltage limit up-to 14V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and Non-standard Adapters
  • Input current optimizer (ICO) to maximize input power without overloading adapters
  • Resistance compensation (IRCOMP) from charger output to cell terminal
  • Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
  • Integrated ADC for system monitor (voltage, temperature, charge current)
  • Narrow VDC (NVDC) power path management
    • Instant-on works with no battery or deeply discharged battery
    • Ideal diode operation in Battery Supplement Mode
  • BATFET Control to support Ship Mode, wake up, and full system reset
  • Flexible autonomous and I2C Mode for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • 12-µA Low battery leakage current to support Ship Mode
  • High accuracy
    • ±0.5% Charge voltage regulation
    • ±5% Charge current regulation
    • ±7.5% Input current regulation
  • Safety
    • Battery temperature sensing for charge and Boost Mode
    • Thermal regulation and thermal shutdown
  • High efficiency 5-A, 1.5-MHz switch mode buck charge
    • 93% Charge efficiency at 2 A and 91% charge efficiency at 3 A charge current
    • Optimize for high voltage input (9 V to 12 V)
    • Low Power PFM Mode for light load operations
  • Boost Mode operation with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-KHz to 1.5-MHz boost converter with up to 3.1-A output
    • 93% Boost efficiency at 5 V at 1 A output
  • Integrated control to switch between charge and Boost Mode
  • Single input to support USB input and adjustable high voltage adapters
    • Support 3.9-V to 14-V input voltage range
    • Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
    • Maximum power tracking by input voltage limit up-to 14V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and Non-standard Adapters
  • Input current optimizer (ICO) to maximize input power without overloading adapters
  • Resistance compensation (IRCOMP) from charger output to cell terminal
  • Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
  • Integrated ADC for system monitor (voltage, temperature, charge current)
  • Narrow VDC (NVDC) power path management
    • Instant-on works with no battery or deeply discharged battery
    • Ideal diode operation in Battery Supplement Mode
  • BATFET Control to support Ship Mode, wake up, and full system reset
  • Flexible autonomous and I2C Mode for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • 12-µA Low battery leakage current to support Ship Mode
  • High accuracy
    • ±0.5% Charge voltage regulation
    • ±5% Charge current regulation
    • ±7.5% Input current regulation
  • Safety
    • Battery temperature sensing for charge and Boost Mode
    • Thermal regulation and thermal shutdown

The BQ25895 is a highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.

The BQ25895 is a highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.
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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 BQ25895 I2C Controlled Single Cell 5-A Fast Charger with MaxChargeTM for High Input Voltage and Adjustable Voltage 3.1-A Boost Operation datasheet (Rev. C) PDF | HTML 2022/10/13
應用說明 Selection of Single-Cell Buck Narrow VDC Switching Battery Chargers PDF | HTML 2022/11/10
應用說明 State of Charge Estimation Using Smart Battery Charger PDF | HTML 2021/10/11
技術文章 How to choose the right battery-charger IC for ultrasound point-of-care products PDF | HTML 2021/3/24
應用說明 USB D+/D- Input Current Limit Detection PDF | HTML 2020/12/30
應用說明 Extracting Maximum Power from an Adapter with Input Current Optimization Feature (Rev. C) 2019/8/2
技術文章 Battery-charging tips for video doorbell applications PDF | HTML 2019/4/15
技術文章 Optimizing solar power with battery chargers PDF | HTML 2018/5/23
應用說明 Dynamic Power-Path Mgmt & Dynamic Power Mgmt (Rev. A) 2018/5/1
應用說明 Battery Charger Overload Protection in Boost Mode Operation 2017/7/12
技術文章 Use Solar-Powered Chargers to Extend Battery Life in Shared Bike Locks PDF | HTML 2017/6/26
應用說明 Port Detection for Power Banks 2016/4/8
應用說明 Using the bq2589x ADC to Estimate Battery Temperature 2015/5/4
類比設計期刊 Extract maximum power from the supply when charging a battery 2014/4/11
類比設計期刊 Dynamic power management for faster, more efficient battery charging 2013/10/28

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

BQ25895EVM-664 — BQ25895 完整充電器評估模組

bq25895 評估模組 (EVM) 是一款完整的充電器模組，用於評估高度整合的開關模式電池充電管理與系統電源路徑管理裝置，適用於各類智慧型手機與平板電腦應用中的單節鋰離子與鋰聚合物電池。

BQ25895EVM-664 需要使用 USB 架構的 PC 介面板 EV2400 以進行 I2C 介接。如果您尚未擁有此介面板，且需要使用 I2C 功能，則可透過 eStore 訂購。立即購買 EV2400。

使用指南: PDF | HTML
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應用軟體及架構

BQSTUDIO — Battery Management Studio (bqStudio) 軟體

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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驅動程式或資料庫

BQ25890SW-LINUX — 適用於 BQ25890 的 Linux 驅動程式

The Linux driver supports the BQ25890 5-A fast charger. The Linux driver supports communication through the I2C bus and interfaces with the power supply sub-system.

 

Linux mainline status

Available in Linux mainline: Yes
Available through git.ti.com: N/A

Linux source Files

The files associated with this (...)

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模擬型號

bq2589x Calculation Tools (Rev. A)

SLURAX7A.ZIP (305 KB) - 功率模型
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參考設計

PMP11536 — 具有快速充電器輸入的 USB-C DFP + 5V2A 行動電源參考設計

PMP11536 是行動電源參考設計，採用 USB type C DFP 加上採用 Maxcharger 升壓模式的 USB type A 連接埠。也支援快速充電器輸入，以節省更多充電時間。它可以自動檢測輸入埠連接/分離事件以及輸出埠。

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參考設計

PMP4451 — 具有輸入與輸出快速充電器的 USB-C DFP+ USB-A 行動電源參考設計

這是行動電源參考設計，採用 USB type C DFP 加上支援高電壓放電的 USB type A 連接埠。也支援快速充電器輸入，以節省更多充電時間。它可以自動檢測輸入埠連接/分離情況以及輸出埠。

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參考設計

PMP4496 — 具有快速充電器輸入的 USB-C DRP 行動電源參考設計

PMP4496 是具有單一 USB type C 雙角色連接埠 (DRP) 的行動電源參考設計。可作為汲極或源極。角色是根據所連接的外部裝置自動確定的。也支援快速充電器輸入，以節省更多充電時間。

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參考設計

TIDA-01182 — 具有自動音訊控制 1S1P BMS 的可攜式音訊放大器參考設計

高性能 10W（每個喇叭 5W）可攜式音訊放大器，整合完整的電池管理解決方案 (BMS)，包含充電器、電量計及 1S1P 18650 2400mAh 鋰電池保護功能，專為 D 類音訊放大器設計。透過高效電源調節器、D 類放大器與完善的電池管理系統，可顯著延長設備運作時間。
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參考設計

TIDA-01556 — 適用於低功耗太陽能電池充電的最大功率點追蹤演算法參考設計

此參考設計為採用太陽能面板輸入之單芯電池充電系統的基本最大功率點追蹤演算法軟體實作。此設計使用充電器的整合式功能，透過簡單的 I²C 型控制機制實現最大充電電流，進而省去對額外電路和複雜韌體的需求。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RTW) 24 Ultra Librarian
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