bq24180

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 16.5V 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 DESCRIPTION The bq24180 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for sin...