产品详细信息

Number of series cells 1 Charge current (Max) (A) 0.8 Operating Vin (Max) (V) 6.5 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (Min) (V) 4.35 Battery charge voltage (Max) (V) 4.35 Absolute Vin (safety rating) (Max) ((V)) 30 Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation Operating Vin (Min) (V) 3 Rating Catalog
Number of series cells 1 Charge current (Max) (A) 0.8 Operating Vin (Max) (V) 6.5 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (Min) (V) 4.35 Battery charge voltage (Max) (V) 4.35 Absolute Vin (safety rating) (Max) ((V)) 30 Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation Operating Vin (Min) (V) 3 Rating Catalog
DSBGA (YBG) 6
  • Input voltage up to 30-V tolerant
  • Automatic Sleep Mode for low power consumption
    • 350-nA battery leakage current
    • 80-µA input leakage current when charge disabled
  • Supports 1-cell Li-Ion, and Li-Poly
  • Fixed 4.35-V battery regulation voltage

  • External resistor programmable operation
    • ISET to set charge current from 10 mA to 800 mA
  • High accuracy
    • ±0.5% charge voltage accuracy
    • ±10% charge current accuracy
  • Charging features
    • Precharge current 20% of ISET
    • Termination current 10% of ISET
    • NTC thermistor input to monitor battery temperature
    • Cold and hot temperature charging disabled
    • Cool temperature charging at 20% of ISET
    • TS pin for charging function control
    • Open-drain output for status and fault indication
  • Integrated fault protection
    • 6.6-V IN overvoltage protection
    • 1000-mA overcurrent protection
    • 125°C thermal regulation; 150°C thermal shutdown protection
    • OUT short-circuit protection
    • ISET pin short/open protection
  • Input voltage up to 30-V tolerant
  • Automatic Sleep Mode for low power consumption
    • 350-nA battery leakage current
    • 80-µA input leakage current when charge disabled
  • Supports 1-cell Li-Ion, and Li-Poly
  • Fixed 4.35-V battery regulation voltage

  • External resistor programmable operation
    • ISET to set charge current from 10 mA to 800 mA
  • High accuracy
    • ±0.5% charge voltage accuracy
    • ±10% charge current accuracy
  • Charging features
    • Precharge current 20% of ISET
    • Termination current 10% of ISET
    • NTC thermistor input to monitor battery temperature
    • Cold and hot temperature charging disabled
    • Cool temperature charging at 20% of ISET
    • TS pin for charging function control
    • Open-drain output for status and fault indication
  • Integrated fault protection
    • 6.6-V IN overvoltage protection
    • 1000-mA overcurrent protection
    • 125°C thermal regulation; 150°C thermal shutdown protection
    • OUT short-circuit protection
    • ISET pin short/open protection

The BQ25175 is an integrated 800-mA linear charger for 1-cell Li-Ion and Li-Poly batteries. The device has a single power output that charges the battery. The system load can be placed in parallel with the battery, as long as the average system load does not prevent the battery from charging fully within the safety timer duration. When the system load is placed in parallel with the battery, the charge current is shared between the system and the battery.

The device has three phases for charging a Li-Ion/Li-Poly battery: precharge to recover a fully discharged battery, fast-charge constant current to supply the bulk of the charge, and voltage regulation to reach full capacity.

In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold, TREG, 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 automatic charge termination. The fast charge current is programmable through an external resistor. The precharge and termination current thresholds track the fast charge current setting.

The BQ25175 is an integrated 800-mA linear charger for 1-cell Li-Ion and Li-Poly batteries. The device has a single power output that charges the battery. The system load can be placed in parallel with the battery, as long as the average system load does not prevent the battery from charging fully within the safety timer duration. When the system load is placed in parallel with the battery, the charge current is shared between the system and the battery.

The device has three phases for charging a Li-Ion/Li-Poly battery: precharge to recover a fully discharged battery, fast-charge constant current to supply the bulk of the charge, and voltage regulation to reach full capacity.

In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold, TREG, 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 automatic charge termination. The fast charge current is programmable through an external resistor. The precharge and termination current thresholds track the fast charge current setting.

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BQ25100 正在供货 具有 4.2V 充电电压和可编程预充电功能的独立型单节电池 250mA 线性电池充电器 Supports lower BAT IQ
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技术文档

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类型 标题 下载最新的英文版本 日期
* 数据表 BQ25175 Standalone 1-Cell 800-mA Linear Battery Charger with 4.35-V Charge Voltage and Charging Indication 数据表 (Rev. A) 2021年 9月 23日
应用手册 BQ25171-Q1 Quick Start Guide 2021年 9月 29日
用户指南 BQ25175EVM User's Guide 2021年 5月 26日
证书 BQ25175EVM EU RoHS Declaration of Conformity (DoC) 2021年 5月 21日
技术文章 When to use rechargeable batteries in small battery applications 2019年 10月 1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

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

评估板

BQ25175EVM — BQ25175 适用于单节锂离子电池的 800mA 线性电池充电器评估模块

BQ25175EVM 评估模块 (EVM) 旨在评估和测试 BQ25175 的各种工作模式,后者是一款用于 4.35V 单节电池的锂离子和锂聚合物化学电池充电器 IC。充电电流可设置为 60mA 至 600mA,ISET 上配有外部电阻。
现货
数量限制: 1
封装 引脚 下载
DSBGA (YBG) 6 了解详情

订购与质量

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/FIT 估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

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