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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

Number of series cells 1 Charge current (max) (A) 5 Vin (max) (V) 14 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.84 Battery charge voltage (max) (V) 4.6 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Control interface I2C 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 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 5 Vin (max) (V) 14 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.84 Battery charge voltage (max) (V) 4.6 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Control interface I2C 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 Rating Catalog Operating temperature range (°C) -40 to 85
WQFN (RTW) 24 16 mm² 4 x 4
  • 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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BQ25798 現行 具雙輸入選擇器和 MPPT 的 I²C 控制、1-4 芯、5-A 升壓降壓太陽能電池充電器 This product is 5-A, 1-S to 4-S I2C buck-boost switching charger with autonomous charging and integrated FETs.

技術文件

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類型 標題 日期
* Data sheet 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年 10月 13日
Application note Selection of Single-Cell Buck Narrow VDC Switching Battery Chargers PDF | HTML 2022年 11月 10日
Application note State of Charge Estimation Using Smart Battery Charger PDF | HTML 2021年 10月 11日
Technical article How to choose the right battery-charger IC for ultrasound point-of-care products PDF | HTML 2021年 3月 24日
Application note USB D+/D- Input Current Limit Detection PDF | HTML 2020年 12月 30日
Application note Extracting Maximum Power from an Adapter with Input Current Optimization Feature (Rev. C) 2019年 8月 2日
Technical article Battery-charging tips for video doorbell applications PDF | HTML 2019年 4月 15日
Technical article Optimizing solar power with battery chargers PDF | HTML 2018年 5月 23日
Application note Dynamic Power-Path Mgmt & Dynamic Power Mgmt (Rev. A) 2018年 5月 1日
Application note Battery Charger Overload Protection in Boost Mode Operation 2017年 7月 12日
Technical article Use Solar-Powered Chargers to Extend Battery Life in Shared Bike Locks PDF | HTML 2017年 6月 26日
Application note Port Detection for Power Banks 2016年 4月 8日
EVM User's guide bq25890/892/895/895M EVM (PWR664) User's Guide (Rev. B) PDF | HTML 2015年 11月 24日
Application note Using the bq2589x ADC to Estimate Battery Temperature 2015年 5月 4日
Analog Design Journal Extract maximum power from the supply when charging a battery 2014年 4月 11日
Analog Design Journal Dynamic power management for faster, more efficient battery charging 2013年 10月 28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

BQ25895EVM-664 — BQ25895 完整充電器評估模組

The bq25895 evaluation module (EVM) is a complete charger module for evaluating the highly-integrated switch-mode battery charge management and system power path management device for 1 cell Li-Ion and Li-polymer battery in a wide range of smartphone and tablet applications.

The BQ25895EVM-664 (...)

使用指南: PDF | HTML
TI.com 無法提供
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) - Power Model
下載
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

This reference design is a software implementation of a basic maximum power point tracking algorithm for a single-cell battery charging system using a solar panel input. This design removes the requirement for extra circuitry and complex firmware by using integrated features of the charger to (...)
Design guide: PDF
電路圖: PDF
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

High performance, 10Watt (5W per speaker) portable audio amplifier that includes everything you need to implement a BMS (Battery Management Solution) for a portable audio amplifier (including a Charger, Fuel (Gas) Gauge and Protection for a 1S1P 18650 2400mAh Lithium battery) for a Class D Audio (...)
Design guide: PDF
電路圖: PDF
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

This is a power bank reference design with a USB type C DFP plus a USB type A port supporting high voltage discharging. Fast charger input is also supported to save more charging time. It can detect the input port attach/detach automatically, as well as the output ports.
Test report: PDF
電路圖: PDF
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 is a power bank reference design with a single USB type C dual role port (DRP). It can perform as a SINK or SOURCE. Role is automatically determined according to the external device attached. Fast charger input is also supported to save more charging time.
Test report: PDF
電路圖: PDF
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 is a power bank reference design with a USB typc C DFP plus a USB type A port employing the boost mode of a Maxcharger. Fast charger input is also supported to save more charging time. It can detect the input port attach/detach events automatically, as well as the output ports.
Test report: PDF
電路圖: PDF
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