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BQ24180

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与 USB 完全兼容的完全集成开关模式单节锂离子充电器

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BQ24180

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产品详情

Number of series cells 1 Charge current (max) (A) 1.5 Vin (max) (V) 16 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) 0 to 125
Number of series cells 1 Charge current (max) (A) 1.5 Vin (max) (V) 16 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) 0 to 125
DSBGA (YFF) 25 4.84 mm² 2.2 x 2.2
  • Charge Faster than Linear Chargers From Current Limited Input Sources
  • High-Accuracy Voltage and Current Regulation
    • Input Current Regulation Accuracy: ±5% (100mA, 500mA)
    • Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0–125°C)
    • Charge Current Regulation Accuracy: ±5%
  • Accessory Power Output (DCOUT)
  • Input Voltage Based Dynamic Power Management
  • Safety Limit Register for Maximum Charge Voltage and Current Limiting
  • High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
  • 20-V Absolute Maximum and 16.5V Operation Input Voltage Rating
  • Built-in Input Current Sensing and Limiting
  • Integrated Power FETs for Up to 1.5-A Charge Rate
  • Programmable Charge Parameters through I2C compatible Interface (up to 3.4 Mbps)
  • Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle
  • Safety Timer and Software Watchdog
  • Reverse Leakage Protection Prevents Battery Drainage
  • Thermal Regulation and Protection
  • Status Outputs for Charging and Faults
  • 25-Pin WCSP Package
  • APPLICATIONS
    • Mobile Phones and Smart Phones
    • Portable Media Players
    • Handheld Devices
  • Charge Faster than Linear Chargers From Current Limited Input Sources
  • High-Accuracy Voltage and Current Regulation
    • Input Current Regulation Accuracy: ±5% (100mA, 500mA)
    • Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0–125°C)
    • Charge Current Regulation Accuracy: ±5%
  • Accessory Power Output (DCOUT)
  • Input Voltage Based Dynamic Power Management
  • Safety Limit Register for Maximum Charge Voltage and Current Limiting
  • High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
  • 20-V Absolute Maximum and 16.5V Operation Input Voltage Rating
  • Built-in Input Current Sensing and Limiting
  • Integrated Power FETs for Up to 1.5-A Charge Rate
  • Programmable Charge Parameters through I2C compatible Interface (up to 3.4 Mbps)
  • Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle
  • Safety Timer and Software Watchdog
  • Reverse Leakage Protection Prevents Battery Drainage
  • Thermal Regulation and Protection
  • Status Outputs for Charging and Faults
  • 25-Pin WCSP Package
  • APPLICATIONS
    • Mobile Phones and Smart Phones
    • Portable Media Players
    • Handheld Devices

The bq24180 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters is programmable using an I2C compatible interface. The bq24180 integrates a synchronous PWM controller, power MOSFETs, input current sensing and overvoltage protection, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.

The bq24180 charges the battery in three phases: conditioning, constant current and constant voltage. Charge current is programmable using the I2C interface. Additionally, the input current can be limited to a host programmable threshold to maintain maximum charge current from current-limited sources, such as USB ports. Charge is terminated based on user-selectable minimum current level. A software watchdog provides a safety backup for I2C interface while a safety timer prevents overcharging the battery. During normal operation, bq24180 automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status is reported to the host using the I2C interface. During the charging process, the bq24180 monitors its junction temperature (TJ) and reduces the charge current if TJ increases to 125°C. The bq24180 is available in 25-pin WCSP package.

The bq24180 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters is programmable using an I2C compatible interface. The bq24180 integrates a synchronous PWM controller, power MOSFETs, input current sensing and overvoltage protection, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.

The bq24180 charges the battery in three phases: conditioning, constant current and constant voltage. Charge current is programmable using the I2C interface. Additionally, the input current can be limited to a host programmable threshold to maintain maximum charge current from current-limited sources, such as USB ports. Charge is terminated based on user-selectable minimum current level. A software watchdog provides a safety backup for I2C interface while a safety timer prevents overcharging the battery. During normal operation, bq24180 automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status is reported to the host using the I2C interface. During the charging process, the bq24180 monitors its junction temperature (TJ) and reduces the charge current if TJ increases to 125°C. The bq24180 is available in 25-pin WCSP package.
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类型 标题 下载最新的英语版本 日期
* 数据表 Fully Integrated Switch-Mode 1-Cell Li-Ion Charger with Full USB Compliance an 数据表 (Rev. A) 2010年 2月 23日
应用手册 BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 2019年 12月 31日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日

设计和开发

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支持软件

SLUC179 — bq24180 EVM Software

支持的产品和硬件

支持的产品和硬件

产品
电池充电器 IC
BQ24180 — 与 USB 完全兼容的完全集成开关模式单节锂离子充电器
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DSBGA (YFF) 25 查看选项
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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
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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