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電池管理 IC
電池充電器 IC

BQ25619

現行

具有 20mA 終端電流和 1A 升壓電流的 I2C 控制型 1.5A 單節降壓型電池充電器

立即訂購
產品規格表

BQ25619

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, Lithium Phosphate/LiFePO4 Charge current (max) (A) 1.5 Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.9 Vin (max) (V) 13.5 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.52 Control interface I2C Operating temperature range (°C) -40 to 85
Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Charge current (max) (A) 1.5 Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.9 Vin (max) (V) 13.5 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.52 Control interface I2C Operating temperature range (°C) -40 to 85
WQFN (RTW) 24 16 mm² 4 x 4
  • Single chip solution to charge wearable accessories from adapter or battery
  • High-efficiency, 1.5MHz, synchronous switch-mode buck charger
    • 95.5% charge efficiency at 0.5A and 94.5% efficiency at 1A
    • ±0.5% charge voltage regulation (10mV step)
    • I2C programmable JEITA profile of charge voltage, current and temperature thresholds
    • Low termination current with high accuracy 20mA±10mA
    • Small inductor form factor of 2.5 x 2.0 x 1.0mm3
  • Boost mode with output from 4.6V to 5.15V
    • 94% boost efficiency at 1A output
    • Integrated control to switch between Charge and Boost mode
    • PMID_GOOD pin control external PMOS FET for protection against fault conditions
  • Single input supporting USB input, high-voltage adapter, or wireless power
    • Support 4V to 13.5V input voltage range with 22V absolute max input rating
    • Programmable input current limit (IINDPM) with I2C (100mA to 3.2A, 100mA/step)
    • Maximum power tracking by input voltage limit (VINDPM) up to 5.4V
    • VINDPM threshold automatically tracks battery voltage
  • Narrow VDC (NVDC) power path management
    • System instant-on with no battery or deeply discharged battery
  • Flexible I2C configuration and autonomous charging for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • Low RDSON 19.5mΩ BATFET to minimize charging loss and extend battery run time
    • BATFET control for Ship mode, and full system reset with and without adapter
  • 7µA low battery leakage current in Ship mode
  • 9.5µA low battery leakage current with system standby
  • High accuracy battery charging profile
    • ±5% charge current regulation
    • ±7.5% input current regulation
    • Remote battery sensing to charge faster
    • Programmable top-off timer for full battery charging
  • Safety Related Certifications:
    • IEC 62368-1 CB Certification
  • Single chip solution to charge wearable accessories from adapter or battery
  • High-efficiency, 1.5MHz, synchronous switch-mode buck charger
    • 95.5% charge efficiency at 0.5A and 94.5% efficiency at 1A
    • ±0.5% charge voltage regulation (10mV step)
    • I2C programmable JEITA profile of charge voltage, current and temperature thresholds
    • Low termination current with high accuracy 20mA±10mA
    • Small inductor form factor of 2.5 x 2.0 x 1.0mm3
  • Boost mode with output from 4.6V to 5.15V
    • 94% boost efficiency at 1A output
    • Integrated control to switch between Charge and Boost mode
    • PMID_GOOD pin control external PMOS FET for protection against fault conditions
  • Single input supporting USB input, high-voltage adapter, or wireless power
    • Support 4V to 13.5V input voltage range with 22V absolute max input rating
    • Programmable input current limit (IINDPM) with I2C (100mA to 3.2A, 100mA/step)
    • Maximum power tracking by input voltage limit (VINDPM) up to 5.4V
    • VINDPM threshold automatically tracks battery voltage
  • Narrow VDC (NVDC) power path management
    • System instant-on with no battery or deeply discharged battery
  • Flexible I2C configuration and autonomous charging for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • Low RDSON 19.5mΩ BATFET to minimize charging loss and extend battery run time
    • BATFET control for Ship mode, and full system reset with and without adapter
  • 7µA low battery leakage current in Ship mode
  • 9.5µA low battery leakage current with system standby
  • High accuracy battery charging profile
    • ±5% charge current regulation
    • ±7.5% input current regulation
    • Remote battery sensing to charge faster
    • Programmable top-off timer for full battery charging
  • Safety Related Certifications:
    • IEC 62368-1 CB Certification

The BQ25618/619 integrates charge, boost converter and voltage protection in a single device. It offers the industry’s lowest termination current for switching chargers to charge wearable devices by full battery capacity. The BQ25618/619 best-in-class low quiescent current reduces battery leakage down to 6uA in Ship mode, which conserves battery energy to double the shelf life for the device. The BQ25619 is in a 4mm × 4mm QFN package for easy layout. The BQ25618 is in a 2.0mm × 2.4mm WCSP package for space limited design.

The BQ25618/619 integrates charge, boost converter and voltage protection in a single device. It offers the industry’s lowest termination current for switching chargers to charge wearable devices by full battery capacity. The BQ25618/619 best-in-class low quiescent current reduces battery leakage down to 6uA in Ship mode, which conserves battery energy to double the shelf life for the device. The BQ25619 is in a 4mm × 4mm QFN package for easy layout. The BQ25618 is in a 2.0mm × 2.4mm WCSP package for space limited design.
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BQ25618 現行 採用 WCSP 封裝、具有 20mA 終端電流和 1A 升壓電流的 I2C 控制型 1.5A 單節降壓型電池充電器 This product is in a WCSP package
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 This product is 5A, 1S I2C buck switching charger with D+/D- USB detection

技術文件

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類型 標題 日期
* Data sheet BQ25618/619 I2C Controlled 1-Cell 1.5A Battery Charger with 20mA Termination and 1A Boost Operation datasheet (Rev. F) PDF | HTML 2025年 2月 10日
Application note High-Efficiency Charging for TWS Using a 2-Pin Interface Application Report (Rev. A) PDF | HTML 2023年 5月 16日
Application note Selection of Single-Cell Buck Narrow VDC Switching Battery Chargers PDF | HTML 2022年 11月 10日
User guide BQ25611D, BQ25619 (BMS025) Evaluation Module User's Guide (Rev. C) PDF | HTML 2022年 7月 1日
Technical article Benefits of rechargeable batteries in real-time location system trackers PDF | HTML 2020年 8月 10日
Technical article Overcoming common design challenges in an UV sterilization box system PDF | HTML 2020年 7月 27日
Application brief How to Design Tiny, Long-Lasting, and Safe Battery Products With Switching Charg 2019年 8月 29日
Technical article Overcoming design challenges for low quiescent current in small, battery-powered d PDF | HTML 2019年 8月 29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

BQ25619EVM — 具有電源路徑和 1.2-A 升壓運作的 I2C 控制 1 芯、3-A 降壓電池充電器評估模組

BQ25619 評估模組 (EVM) 可用於評估 BQ25619 裝置。這是針對低功耗可攜式設計中的行動電源應用最佳化的 3A 單芯電池充電器。OTG 反向同步升壓運作和順向降壓模式運作，允許控制供電到周邊供電設備。
使用指南: PDF | HTML
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驅動程式或資料庫

BQ256XXSW-LINUX — 適用 BQ256XX 的 Linux 驅動程式

Linux 驅動程式支援 I2C 控制，1 芯，切換模式電池充電管理和系統電源路徑管理 IC 的 BQ256XX 系列。Linux 驅動程式支援透過 I2C 匯流排進行通訊，並介接電源供應器子系統。

Linux 主線路狀態

適用於 Linux 主線路：是
可透過 git.ti.com 獲得：否   

Linux 源文件

與此裝置關聯的文件包括：

  1. drivers/power/supply/bq256xx_charger.c

源文件

drivers/power/supply/bq256xx_charger.c

啓用驅動程式支援

使用 "make menuconfig" 配置核心 (或者使用 "make (...)

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WQFN (RTW) 24 Ultra Librarian
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