产品详细信息

Number of series cells 1 Charge current (Max) (A) 1 Operating Vin (Max) (V) 6.45 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (Min) (V) 4.2 Battery charge voltage (Max) (V) 4.2 Absolute Vin (safety rating) (Max) ((V)) 12 Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, VINDPM (Input voltage threshold to maximize adaptor power) Operating Vin (Min) (V) 4.45 Rating Catalog
Number of series cells 1 Charge current (Max) (A) 1 Operating Vin (Max) (V) 6.45 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (Min) (V) 4.2 Battery charge voltage (Max) (V) 4.2 Absolute Vin (safety rating) (Max) ((V)) 12 Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, VINDPM (Input voltage threshold to maximize adaptor power) Operating Vin (Min) (V) 4.45 Rating Catalog
HVSSOP (DGQ) 10 9 mm² 3 x 3
  • Charging
    • 1% charge voltage accuracy
    • 10% charge current accuracy
    • Pin selectable USB 100-mA and 500-mA maximum input current limit
    • Programmable termination and precharge threshold
  • Protection
    • 6.6-V overvoltage protection
    • Input voltage dynamic power management
    • 125°C thermal regulation; 150°C thermal shutdown protection
    • OUT short-circuit protection and ISET short detection
    • Operation over JEITA range via battery NTC – ½ fast-charge-current at cold, 4.06 V at hot, BQ092/3
    • Fixed 10-hour safety timer
  • System
    • Automatic Termination and Timer Disable Mode (TTDM) for absent battery pack with thermistor
    • Status indication – charging/done
    • Available in a small 10-pin MSOP package
  • Charging
    • 1% charge voltage accuracy
    • 10% charge current accuracy
    • Pin selectable USB 100-mA and 500-mA maximum input current limit
    • Programmable termination and precharge threshold
  • Protection
    • 6.6-V overvoltage protection
    • Input voltage dynamic power management
    • 125°C thermal regulation; 150°C thermal shutdown protection
    • OUT short-circuit protection and ISET short detection
    • Operation over JEITA range via battery NTC – ½ fast-charge-current at cold, 4.06 V at hot, BQ092/3
    • Fixed 10-hour safety timer
  • System
    • Automatic Termination and Timer Disable Mode (TTDM) for absent battery pack with thermistor
    • Status indication – charging/done
    • Available in a small 10-pin MSOP package

The BQ2409x series of devices are highly integrated Li-ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

The BQ2409x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor. The fast charge current value is also programmable via an external resistor.

The BQ2409x series of devices are highly integrated Li-ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

The BQ2409x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor. The fast charge current value is also programmable via an external resistor.

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BQ25170 正在供货 适用于单节锂离子和磷酸铁锂电池的 800mA 线性电池充电器 This product is a 800-mA, single cell Li-Ion and LiFePO4 battery linear charger with programmable charge voltage

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类型 项目标题 下载最新的英语版本 日期
* 数据表 BQ2409x 1-A、单输入、单节锂离子和锂聚合物电池充电器 数据表 (Rev. H) 27 Apr 2021
技术文章 When to use rechargeable batteries in small battery applications 01 Oct 2019
应用手册 BQ2404x, BQ2405x, and BQ2409x frequently asked questions 25 Feb 2019
选择指南 电源管理指南 2018 (Rev. K) 31 Jul 2018
技术文章 Learn the basics of battery charging in power banks 04 May 2016
技术文章 Should I use a linear charger or a switching charger? 31 Oct 2015
更多文献资料 Innovative Charging Solutions (Rev. C) 18 Aug 2014
技术文章 Summertime and the livin' is easy 20 Jun 2014
应用手册 OPA544, bq2409x, bq2404x, bq2415x, bq2425x, bq2416x 14 Oct 2013
更多文献资料 电源组充电器 IC 下载英文版本 16 Aug 2013
用户指南 1.0-A Single-Input, Single-Cell Li-Ion Battery Charger . 31 Dec 2012
应用手册 Selecting the Best bq2404x/5x/9x Single Cell Battery Charger for your Applicatio 29 Nov 2012
模拟设计期刊 2012 年第 2 季度刊模拟应用学报 26 Apr 2012
用户指南 1.0-A Single-Input, Single-Cell Li-Ion Battery Charger (Rev. A) 07 Jun 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

BQ24090EVM — BQ24090 评估模块

BQ24090EVM 用户指南介绍了 bq24090 评估模块 (EVM)、如何执行独立评估或与主机或系统交互。该充电器设计为在 ISET 引脚上设定电阻以及在出厂时设定好 ~540mA 时向电池输出提供高达 1000mA 的连续电流。USB 电流限制模式由 ISET2 引脚选择,并将电流限制为最大 500mA(逻辑高电平)或 100mA(浮点或高阻抗)。ISET2 引脚上的低电阻使用 ISET 电阻对充电电流进行编程。

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光绘文件

HPA506B GBR Files HPA506B GBR Files

光绘文件

Linear Charger NTC Calculator Linear Charger NTC Calculator

参考设计

TIDA-00043 — 1A 单输入、单节锂离子和锂聚合物电池充电器参考设计

当使用 ISET 引脚上的电阻器编程时,此参考设计可为电池输出提供高达 1000mA 的连续电流,并且在出厂时编程为 ~540mA。USB 电流限制模式由 ISET2 引脚选择,并将电流限制为最大 500mA(逻辑高电平)或 100mA(浮点或高阻抗)。ISET2 引脚上的低电阻使用 ISET 电阻对充电电流进行编程。
封装 引脚数 下载
HVSSOP (DGQ) 10 了解详情

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  • 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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