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bq24180 - Fully Integrated Switch-Mode One-Cell Li-Ion Charger

General Description

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.

Key Features

  • 1.
  • 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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
bq24180 www.ti.com SLUSA02 A – FEBRUARY 2010 – REVISED FEBRUARY 2010 Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and Accessory Power Connection Check for Samples: bq24180 FEATURES 1 •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.