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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

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產品規格表

BQ25619

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) 1.5 Vin (max) (V) 13.5 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.52 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Control interface I2C 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 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 1.5 Vin (max) (V) 13.5 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.52 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Control interface I2C 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 Rating Catalog 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, 1.5-MHz, synchronous switch-mode buck charger
    • 95.5% charge efficiency at 0.5 A and 94.5% efficiency at 1 A
    • ±0.5% charge voltage regulation (10-mV step)
    • I2C programmable JEITA profile of charge voltage, current and temperature thresholds
    • Low termination current with high accuracy 20 mA±10 mA
    • Small inductor form factor of 2.5 x 2.0 x 1.0 mm3
  • Boost mode with output from 4.6 V to 5.15 V
    • 94% boost efficiency at 1-A 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 4-V to 13.5-V input voltage range with 22-V absolute max input rating
    • Programmable input current limit (IINDPM) with I2C (100 mA to 3.2 A, 100-mA/step)
    • Maximum power tracking by input voltage limit (VINDPM) up to 5.4 V
    • 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 19.5-mΩ BATFET to minimize charging loss and extend battery run time
    • BATFET control for Ship mode, and full system reset with and without adapter
  • 7-µA low battery leakage current in Ship mode
  • 9.5-µA low battery leakage current with system standby
  • High accuracy battery charging profile
    • ±6% 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, 1.5-MHz, synchronous switch-mode buck charger
    • 95.5% charge efficiency at 0.5 A and 94.5% efficiency at 1 A
    • ±0.5% charge voltage regulation (10-mV step)
    • I2C programmable JEITA profile of charge voltage, current and temperature thresholds
    • Low termination current with high accuracy 20 mA±10 mA
    • Small inductor form factor of 2.5 x 2.0 x 1.0 mm3
  • Boost mode with output from 4.6 V to 5.15 V
    • 94% boost efficiency at 1-A 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 4-V to 13.5-V input voltage range with 22-V absolute max input rating
    • Programmable input current limit (IINDPM) with I2C (100 mA to 3.2 A, 100-mA/step)
    • Maximum power tracking by input voltage limit (VINDPM) up to 5.4 V
    • 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 19.5-mΩ BATFET to minimize charging loss and extend battery run time
    • BATFET control for Ship mode, and full system reset with and without adapter
  • 7-µA low battery leakage current in Ship mode
  • 9.5-µA low battery leakage current with system standby
  • High accuracy battery charging profile
    • ±6% 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 6 uA in Ship mode, which conserves battery energy to double the shelf life for the device. BQ25619 is in 4x4 QFN package for easy layout. BQ25618 is in 2.0x2.4mm2 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 6 uA in Ship mode, which conserves battery energy to double the shelf life for the device. BQ25619 is in 4x4 QFN package for easy layout. BQ25618 is in 2.0x2.4mm2 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

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類型 標題 日期
* Data sheet BQ25618/619 I2C Controlled 1-Cell 1.5-A Battery Charger with 20-mA Termination and 1-A Boost Operation datasheet (Rev. D) PDF | HTML 2021年 12月 23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 升壓操作的 I2C 控制單芯、3-A 降壓電池充電器評估模組

The BQ25619 evaluation module (EVM) is used to evaluate the BQ25619 device. This is a 3-A single-cell battery charger optimized for power bank applications in low-power portable designs. The OTG reverse synchronous boost operation and forward buck mode operation allows for control over power (...)
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

The Linux driver supports the BQ256XX family of I2C Controlled, 1-cell, switch-mode battery charge management and system power path management ICs. The Linux driver supports communication through the I2C bus and interfaces with the power supply sub-system.

Linux mainline status

Available in Linux (...)

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