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  • High-efficiency, 1.5-MHz, synchronous switching mode buck charger for single cell battery
    • >90% efficiency down to 25-mA output current from 5-V input
    • Charge termination from 10 mA to 620 mA, 10-mA steps
    • Flexible JEITA profile for safe charging over temperature
  • BATFET control to support shutdown, ship mode and full system reset
    • 1.5-µA quiescent current in battery only mode
    • 0.15-µA battery leakage current in ship mode
    • 0.1-µA battery leakage current in shutdown
  • Supports USB On-The-Go (OTG)
    • Boost mode operation supporting 3.84-V to 9.6-V output
    • >90% boost efficiency down to 100-mA OTG current for 5-V VBUS
  • Supports a wide range of input sources
    • 3.9-V to 18-V wide input operating voltage range with 26-V absolute maximum input voltage
    • Maximizes source power with input voltage regulation (VINDPM) and input current regulation (IINDPM)
    • VINDPM threshold automatically tracks battery voltage
  • Efficient battery operation with 15-mΩ BATFET
  • Narrow VDC (NVDC) power path management
    • System instant-on with depleted or no battery
    • Battery supplement when adapter is fully loaded
  • Flexible autonomous or I2C-controlled modes
  • Integrated 12-bit ADC for voltage, current, temperature monitoring
  • High accuracy
    • ±0. 5% charge voltage regulation
    • ±5% charge current regulation
    • ±5% input current regulation
  • Safety
    • Thermal regulation and thermal shutdown
    • Input, system, battery overvoltage protection
    • Battery, converter overcurrent protection
    • Charging safety timer
  • High-efficiency, 1.5-MHz, synchronous switching mode buck charger for single cell battery
    • >90% efficiency down to 25-mA output current from 5-V input
    • Charge termination from 10 mA to 620 mA, 10-mA steps
    • Flexible JEITA profile for safe charging over temperature
  • BATFET control to support shutdown, ship mode and full system reset
    • 1.5-µA quiescent current in battery only mode
    • 0.15-µA battery leakage current in ship mode
    • 0.1-µA battery leakage current in shutdown
  • Supports USB On-The-Go (OTG)
    • Boost mode operation supporting 3.84-V to 9.6-V output
    • >90% boost efficiency down to 100-mA OTG current for 5-V VBUS
  • Supports a wide range of input sources
    • 3.9-V to 18-V wide input operating voltage range with 26-V absolute maximum input voltage
    • Maximizes source power with input voltage regulation (VINDPM) and input current regulation (IINDPM)
    • VINDPM threshold automatically tracks battery voltage
  • Efficient battery operation with 15-mΩ BATFET
  • Narrow VDC (NVDC) power path management
    • System instant-on with depleted or no battery
    • Battery supplement when adapter is fully loaded
  • Flexible autonomous or I2C-controlled modes
  • Integrated 12-bit ADC for voltage, current, temperature monitoring
  • High accuracy
    • ±0. 5% charge voltage regulation
    • ±5% charge current regulation
    • ±5% input current regulation
  • Safety
    • Thermal regulation and thermal shutdown
    • Input, system, battery overvoltage protection
    • Battery, converter overcurrent protection
    • Charging safety timer

The BQ25620 and BQ25622 are highly-integrated 3.5-A switch-mode battery charge management and system power path management devices for single cell Li-Ion and Li-polymer batteries. The solution is highly integrated with built-in current sensing, loop compensation, input reverse-blocking FET (RBFET, Q1), high-side switching FET (HSFET, Q2), low-side switching FET (LSFET, Q3), and battery FET (BATFET, Q4) between system and battery. The devices use narrow VDC power path management, regulating the system slightly above the battery voltage without dropping below a configurable minimum system voltage. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time, extends battery life during discharging phase, and the ultra-low 0.15-µA ship mode current extends battery shelf life. The I2C serial interface with charging and system settings makes the BQ25620 and BQ25622 truly flexible solutions.

The BQ25620 and BQ25622 are highly-integrated 3.5-A switch-mode battery charge management and system power path management devices for single cell Li-Ion and Li-polymer batteries. The solution is highly integrated with built-in current sensing, loop compensation, input reverse-blocking FET (RBFET, Q1), high-side switching FET (HSFET, Q2), low-side switching FET (LSFET, Q3), and battery FET (BATFET, Q4) between system and battery. The devices use narrow VDC power path management, regulating the system slightly above the battery voltage without dropping below a configurable minimum system voltage. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time, extends battery life during discharging phase, and the ultra-low 0.15-µA ship mode current extends battery shelf life. The I2C serial interface with charging and system settings makes the BQ25620 and BQ25622 truly flexible solutions.

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类型 项目标题 下载最新的英语版本 日期
* 数据表 BQ25620/BQ25622 I2C Controlled, 3.5-A, Maximum 18-V Input, Charger with NVDC Power Path Management and OTG Output 数据表 (Rev. A) PDF | HTML 28 Oct 2022
应用手册 Selection of Single-Cell Switching Battery Chargers BQ2419x, BQ2429x, BQ2589x, B PDF | HTML 10 Nov 2022
EVM 用户指南 BQ25620EVM User's Guide (Rev. A) PDF | HTML 02 Nov 2022
证书 BQ25622EVM EU RoHS Declaration of Conformity (DoC) 01 Nov 2022
技术文章 When to use rechargeable batteries in small battery applications 01 Oct 2019
技术文章 Should I use a linear charger or a switching charger? 31 Oct 2015
技术文章 Summertime and the livin' is easy 20 Jun 2014

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BQ25622EVM — BQ25622 具有低 IQ 和电流限制引脚的单芯 3.5A 电池充电器评估模块

BMS050 评估模块 (EVM) 是一个完整的充电器模块,用于评估 BQ25622 3.5A、高达 18V 输入、I²C 控制的单节电池 (1S) NVDC 充电器。

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