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电池充电器 IC

BQ25050

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具有 50mA LDO 的单节 1A 单输入锂离子电池充电器

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BQ24072 正在供货 具有电源路径、4.2V VBAT 和 VOUT=VBAT + 225mV 的独立型单节 1.5A 线性电池充电器 This product is a 1.5-A, standalone, single-cell Li-Ion battery charger with power path in a 3x3mm package.

BQ25050

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产品详情

Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 10.2 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) 30 Control topology Linear Control interface Standalone (RC-Settable) Features IC thermal regulation, Input OVP, Integrated LDO, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.4 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 10.2 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) 30 Control topology Linear Control interface Standalone (RC-Settable) Features IC thermal regulation, Input OVP, Integrated LDO, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.4 Rating Catalog Operating temperature range (°C) -40 to 85
WSON (DQC) 10 6 mm² 3 x 2
  • 30V input Rating, With 10.5V Over-Voltage Protection (OVP)
  • FET Controller for External Battery FET for External Power Path Control (BGATE)
  • Input Voltage Dynamic Power Management
  • 50mA integrated Low Dropout Linear Regulator (LDO)
  • Programmable Charge Current Through Single Input Interface (CTRL)
  • 0.5% Battery Voltage Regulation Accuracy
  • 7% Charge Current Regulation Accuracy
  • Thermal Regulation and Protection
  • Battery NTC Monitoring During Charge and Discharge
  • Status Indication – Charging/Done and Temperature Faults
  • Available in small 2mm × 3mm 10 Pin SON Package
  • APPLICATIONS
    • Smart Phones
    • Mobile Phones
    • Portable Media Players
    • Low Power Handheld Devices
  • 30V input Rating, With 10.5V Over-Voltage Protection (OVP)
  • FET Controller for External Battery FET for External Power Path Control (BGATE)
  • Input Voltage Dynamic Power Management
  • 50mA integrated Low Dropout Linear Regulator (LDO)
  • Programmable Charge Current Through Single Input Interface (CTRL)
  • 0.5% Battery Voltage Regulation Accuracy
  • 7% Charge Current Regulation Accuracy
  • Thermal Regulation and Protection
  • Battery NTC Monitoring During Charge and Discharge
  • Status Indication – Charging/Done and Temperature Faults
  • Available in small 2mm × 3mm 10 Pin SON Package
  • APPLICATIONS
    • Smart Phones
    • Mobile Phones
    • Portable Media Players
    • Low Power Handheld Devices

The bq25050 is a highly integrated Li-Ion linear battery charger targeted at space-limited portable applications. It operates from either a USB port or AC Adapter and charges a single-cell Li-Ion battery with up to 1A of charge current. The 30V input voltage range with input over-voltage protections supports low-cost unregulated adapters.

The bq25050 has a single power output that charges the battery. The system load is connected to OUT. The low-battery system startup circuitry maintains OUT greater than 3.4V whenever an input source is connected. This allows the system to start-up and run whenever an input source is connected regardless of the battery voltage. The charge current is programmable up to 1A using the CTRL input. Additionally, a 4.9V 50mA LDO is integrated into the IC for supplying low power external circuitry.

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 bq25050 is a highly integrated Li-Ion linear battery charger targeted at space-limited portable applications. It operates from either a USB port or AC Adapter and charges a single-cell Li-Ion battery with up to 1A of charge current. The 30V input voltage range with input over-voltage protections supports low-cost unregulated adapters.

The bq25050 has a single power output that charges the battery. The system load is connected to OUT. The low-battery system startup circuitry maintains OUT greater than 3.4V whenever an input source is connected. This allows the system to start-up and run whenever an input source is connected regardless of the battery voltage. The charge current is programmable up to 1A using the CTRL input. Additionally, a 4.9V 50mA LDO is integrated into the IC for supplying low power external circuitry.

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.
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类型 标题 下载最新的英语版本 日期
* 数据表 1A, Single-Input, Single Cell Li-Ion Battery Charger with 50-mA LDO and Minimum 数据表 2010年 3月 25日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
EVM 用户指南 bq25050/bq25060EVM User's Guide 2010年 7月 21日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

BQ25050EVM — 具有 50mA LDO 的 BQ25050 1A、单输入、单节锂离子电池充电器的评估模块

bq25050EVM 可以帮助用户评估 bq25050 线性电池充电器。用户指南手册中包含 bq25050EVM 物料清单、板面布局和原理图。bq25050/60 是面向空间受限型便携式应用的高度集成锂离子线性电池充电器。它由 USB 端口或 AC 适配器供电，并为单节锂离子电池提供高达 1A 的充电电流。带输入过压保护的 30V 输入电压范围支持低成本、非稳压适配器。bq25050/60 具有为电池充电的单电源输出。系统负载与输出相连。无论何时与输入源相连，低电量系统启动电路都会将输出电压保持在 3.4V 以上。这样就可以不受电池电压的限制，在连接到输入源时启动并运行系统。充电电流可通过 (...)

用户指南: PDF
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  • 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
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
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  • 封装厂地点

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