主页 电源管理 电池管理 IC 电池充电器 IC
主页
电源管理
电池管理 IC
电池充电器 IC

BQ24230

正在供货

具有动态电源管理和 6.6V 过压保护的 USB 友好型 0.5A 锂离子电池充电器

立即订购
数据表

可提供此产品的更新版本

open-in-new 比较替代产品
功能与比较器件相似
BQ21061 正在供货 具有 10nA 运输模式、电源路径、稳定系统电压和 LDO 的 500mA 单节电池线性充电器 This product is a 500-mA 1-cell I2C linear charger with 10-nA IQ, power path and a LDO

BQ24230

正在供货
数据表 立即订购

产品详情

Number of series cells 1 Charge current (max) (A) 0.5 Vin (max) (V) 6.4 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Absolute max Vin (max) (V) 28 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), Input OVP, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.35 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 0.5 Vin (max) (V) 6.4 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Absolute max Vin (max) (V) 28 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), Input OVP, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.35 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGT) 16 9 mm² 3 x 3
  • Fully Compliant USB Charger
    • Selectable 100-mA and 500-mA Maximum Input Current
    • 100-mA Maximum Current Limit Ensures Compliance to USB-IF Standard
    • Input-based Dynamic Power Management (VIN- DPM) for Protection Against Poor USB Sources
  • 28-V Input Rating With Overvoltage Protection
  • Integrated Dynamic Power-Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
  • Supports up to 500-mA Charge Current With Current Monitoring Output (ISET)
  • Programmable Input Current Limit up to 500 mA for Wall Adapters
  • Programmable Termination Current (bq24232)
  • Programmable Precharge and Fast-Charge Safety Timers
  • Reverse Current, Short-Circuit, and Thermal Protection
  • NTC Thermistor Input
  • Proprietary Start-Up Sequence Limits Inrush Current
  • Status Indication – Charging/Done, Power Good
  • Small 3 mm × 3 mm 16-Lead QFN Package
  • Fully Compliant USB Charger
    • Selectable 100-mA and 500-mA Maximum Input Current
    • 100-mA Maximum Current Limit Ensures Compliance to USB-IF Standard
    • Input-based Dynamic Power Management (VIN- DPM) for Protection Against Poor USB Sources
  • 28-V Input Rating With Overvoltage Protection
  • Integrated Dynamic Power-Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
  • Supports up to 500-mA Charge Current With Current Monitoring Output (ISET)
  • Programmable Input Current Limit up to 500 mA for Wall Adapters
  • Programmable Termination Current (bq24232)
  • Programmable Precharge and Fast-Charge Safety Timers
  • Reverse Current, Short-Circuit, and Thermal Protection
  • NTC Thermistor Input
  • Proprietary Start-Up Sequence Limits Inrush Current
  • Status Indication – Charging/Done, Power Good
  • Small 3 mm × 3 mm 16-Lead QFN Package

The bq2423x series of devices are highly integrated Li-ion linear chargers and system power-path management devices targeted at space-limited portable applications. The devices operate from either a USB port or ac adapter and support charge currents between 25 mA and 500 mA. The high-input-voltage range with input overvoltage protection supports low-cost, unregulated adapters. The USB input current limit accuracy and start-up sequence allow the bq2423x to meet USB-IF inrush current specification. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing poorly designed or incorrectly configured USB sources.

The bq2423x features dynamic power-path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold, thus supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination, and enables the system to run with a defective or absent battery pack. Additionally, this enables instant system turn-on even with a totally discharged battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents, enabling the use of a smaller adapter.

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 the 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 input current limit and charge current are programmable using external resistors.

The bq2423x series of devices are highly integrated Li-ion linear chargers and system power-path management devices targeted at space-limited portable applications. The devices operate from either a USB port or ac adapter and support charge currents between 25 mA and 500 mA. The high-input-voltage range with input overvoltage protection supports low-cost, unregulated adapters. The USB input current limit accuracy and start-up sequence allow the bq2423x to meet USB-IF inrush current specification. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing poorly designed or incorrectly configured USB sources.

The bq2423x features dynamic power-path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold, thus supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination, and enables the system to run with a defective or absent battery pack. Additionally, this enables instant system turn-on even with a totally discharged battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents, enabling the use of a smaller adapter.

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 the 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 input current limit and charge current are programmable using external resistors.
open-in-new 查找其他 电池充电器 IC
下载 观看带字幕的视频 视频

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索，并重试。
查看全部 12
类型 项目标题 下载最新的英语版本 日期
* 数据表 bq2423x USB-Friendly Lithium-Ion Battery Charger And Power-Path Management IC 数据表 (Rev. J) PDF | HTML 2017年 4月 8日
应用手册 Configuring Standalone Linear Power Path Chargers (Rev. A) PDF | HTML 2020年 4月 6日
技术文章 When to use rechargeable batteries in small battery applications 2019年 10月 1日
应用手册 BQ2423X external NTC control reference design 2019年 3月 22日
应用手册 Dynamic Power-Path Mgmt & Dynamic Power Mgmt (Rev. A) 2018年 5月 1日
模拟设计期刊 2Q 2016 Analog Applications Journal Issue 2016年 4月 26日
模拟设计期刊 Battery-charging considerations for low-power applications 2016年 4月 26日
技术文章 Should I use a linear charger or a switching charger? 2015年 10月 31日
技术文章 Summertime and the livin' is easy 2014年 6月 20日
技术文章 Why is my idling device draining its battery? Using MSP MCUs for power management. 2013年 2月 15日
应用手册 Selecting the Best bq2407x/23x Single Cell Battery Charger for your Application 2012年 11月 8日
应用手册 MSP430 Based Lithium-Ion Polymer Battery Charging and Gauging Solution Using USB (Rev. A) 2012年 6月 27日

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

BQ24230EVM — BQ24230 评估模块

本用户指南介绍了 bq24072/3/4/5 和 bq24320/2 (bqTiny-III™) 评估模块 (EVM)。该 EVM 为使用 bq24072/3/4/5 和 bq24320/2 产品系列的便携式应用的充电管理和系统电源解决方案的性能评估提供了便捷方法。现已推出经过完整设计和测试的模块。该充电器旨在为使用直流电源的单节锂离子或锂聚合物应用（查看数据表以选择合适器件）的系统或充电器提供 1.5A 的连续电流。该充电器出厂设计为提供 0.9A 的充电电流。虽然该 EVM 被设计成独立的评估模块，但也可以通过连接器和接头与系统和主机相连。

用户指南: PDF
TI.com 上无现货
光绘文件

Linear Charger NTC Calculator

SLUC670.ZIP (350 KB)
下载
参考设计

TIDA-00600 — 用于 CC2530 ZigBee 无线 MCU 的电源和电池管理参考设计

TIDA-00600 的主要目的是为同时需要可充电电池和直流连接器电源的 ZigBee 系统提供一个成本优化的小型电源管理解决方案。TIDA-00600 设计为电源管理部门提供测试数据、设计指南和光绘文件。

此参考设计采用 LP5907（具有高 PSRR 和低噪声的超小型 LDO）和 BQ24230（独立式电池充电器）。

设计指南: PDF
原理图: PDF
封装 引脚数 下载
VQFN (RGT) 16 了解详情
应遵守 TI 的评估模块标准条款与条件.

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

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持与培训

视频