产品详细信息

Number of series cells 1, 2, 3, 4, 5, 6 Charge current (Max) (A) 10 Operating Vin (Max) (V) 28 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (Min) (V) 2.1 Battery charge voltage (Max) (V) 26 Absolute Vin (safety rating) (Max) ((V)) 33 Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (JEITA profile), IINDPM (Input current limit), Power Path Operating Vin (Min) (V) 5 Rating Catalog
Number of series cells 1, 2, 3, 4, 5, 6 Charge current (Max) (A) 10 Operating Vin (Max) (V) 28 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (Min) (V) 2.1 Battery charge voltage (Max) (V) 26 Absolute Vin (safety rating) (Max) ((V)) 33 Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (JEITA profile), IINDPM (Input current limit), Power Path Operating Vin (Min) (V) 5 Rating Catalog
VQFN (RGE) 24 16 mm² 4 x 4
  • Battery Thermistor Sense for JEITA Guideline
    Compatible Charger
  • 600-kHz NMOS-NMOS Synchronous Buck
    Converter
  • Stand-Alone Charger Support for Li-Ion or Li-
    Polymer
  • 5-V–28-V VCC Input Operating Range and
    Supports 1 to 6 Battery Cells
  • Up to 10-A Charge Current and Adapter Current
  • High-Accuracy Voltage and Current Regulation
    • ±0.5% Charge Voltage Accuracy
    • ±3% Charge Current Accuracy
    • ±3% Adapter Current Accuracy
  • Integration
    • Automatic System Power Selection From
      Adapter or Battery
    • Internal Loop Compensation
    • Internal Soft-Start
    • Dynamic Power Management
  • Safety Protection
    • Input Overvoltage Protection
    • Battery Detection
    • Reverse Protection Input FET
    • Programmable Safety Timer
    • Charge Overcurrent Protection
    • Battery Short Protection
    • Battery Overvoltage Protection
    • Thermal Shutdown
  • Status Outputs
    • Adapter Present
    • Charger Operation Status
  • Charge Enable Pin
  • 6-V Gate Drive for Synchronous Buck Converter
  • 30-ns Driver Dead-Time and 99.5% Maximum
    Effective Duty Cycle
  • 24-Pin, 4-mm × 4-mm QFN Package
  • Energy Star Low Quiescent Current Iq
    • < 15-µA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current
  • Battery Thermistor Sense for JEITA Guideline
    Compatible Charger
  • 600-kHz NMOS-NMOS Synchronous Buck
    Converter
  • Stand-Alone Charger Support for Li-Ion or Li-
    Polymer
  • 5-V–28-V VCC Input Operating Range and
    Supports 1 to 6 Battery Cells
  • Up to 10-A Charge Current and Adapter Current
  • High-Accuracy Voltage and Current Regulation
    • ±0.5% Charge Voltage Accuracy
    • ±3% Charge Current Accuracy
    • ±3% Adapter Current Accuracy
  • Integration
    • Automatic System Power Selection From
      Adapter or Battery
    • Internal Loop Compensation
    • Internal Soft-Start
    • Dynamic Power Management
  • Safety Protection
    • Input Overvoltage Protection
    • Battery Detection
    • Reverse Protection Input FET
    • Programmable Safety Timer
    • Charge Overcurrent Protection
    • Battery Short Protection
    • Battery Overvoltage Protection
    • Thermal Shutdown
  • Status Outputs
    • Adapter Present
    • Charger Operation Status
  • Charge Enable Pin
  • 6-V Gate Drive for Synchronous Buck Converter
  • 30-ns Driver Dead-Time and 99.5% Maximum
    Effective Duty Cycle
  • 24-Pin, 4-mm × 4-mm QFN Package
  • Energy Star Low Quiescent Current Iq
    • < 15-µA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current

The bq2461x device is a highly integrated, Japan Electronic Information Technology Association (JEITA) guideline-compatible, Li-ion or Li-polymer switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring

The bq2461x charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The bq2461x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.

The bq2461x device is a highly integrated, Japan Electronic Information Technology Association (JEITA) guideline-compatible, Li-ion or Li-polymer switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring

The bq2461x charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The bq2461x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.

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技术文档

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类型 项目标题 下载最新的英语版本 日期
* 数据表 bq24616 JEITA Guideline Compatible Stand-Alone Synchronous Switched-Mode Li-Ion or Li-Polymer Battery Charger With System Power Selector and Low Iq 数据表 (Rev. C) PDF | HTML 30 Jun 2015
应用手册 BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 31 Dec 2019
技术文章 When to use rechargeable batteries in small battery applications 01 Oct 2019
选择指南 电源管理指南 2018 (Rev. K) 31 Jul 2018
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
用户指南 bq2461x/bq2463x (HPA422A) Multi-Cell Synchronous Switch-Mode Charger (Rev. A) 27 Jul 2010

设计和开发

如需其他信息或资源,请查看下方列表,点击标题即可进入详情页面。

评估板

BQ24616EVM — BQ24616 独立同步开关模式锂离子或锂聚合物电池充电器的评估模块

bq2461x 是高度集成的锂离子或锂聚合物开关模式电池充电控制器。bq2463x 是高度集成的开关模式电池充电控制器,专为磷酸锂电池化学物充电而设计。它们可以为恒频同步 PWM 控制器提供高准确度充电电流和电压调节、适配器电流调节、充电预处理和充电状态监控。bq2461x/bq2463x 在以下三个阶段为电池充电:预处理、恒定电流和恒定电压。当电流达到最低的用户可选级别时,充电将终止。可编程充电定时器可以为充电终止提供安全备份。当电池电压低于内部阈值时,q2461x/bq2463x 会自动重新启动充电周期;当输入电压低于电池电压时,则会进入低静态电流休眠模式。

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计算工具

bq246xx Calculation Tool V1.5 (Rev. D) bq246xx Calculation Tool V1.5 (Rev. D)

封装 引脚数 下载
VQFN (RGE) 24 了解详情

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

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