BQ24153

www.ti.com Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support Check for Samples: bq24153, bq24156, bq24158 bq24153 bq24156, bq24158 SLUSA27 – MARCH 2010 FEATURES 1 2 Charge Faster than Linear Chargers High-Accuracy Voltage and Current Regulation – Input Current Regulation Accuracy: ±5% (100 mA and 500 mA) – Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0°C to 125°C) – Charge Current Regulation Accuracy: ±5% Input Voltage Based Dynamic Power Management (VIN DPM) Bad adaptor detection and rejection 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 Input Voltage Rating 9.0-V Maximum Operating Input Voltage-bq24156 6-V Maximum Operating Input Voltage-bq24153/8 Built-In Input Current Sensing and Limiting Integrated Power FETs for Up To 1.5-A Charge Rate-bq24156, 1.25A-bq24153/8 Programmable Charge Parameters through I2C™ Compatible Interface (up to 3.4 Mbps): – Input Current Limit – VIN DPM Threshold – Fast-Charge/Termination Current – Charge Regulation Voltage (3.5 V to 4.44 V) – Low Charge Current Mode Enable/Disable – Safety Timer with Reset Control – Termination Enable/Disable Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle Automatic High Impedance Mode for Low Power Consumption Robust Protection – Reverse Leakag...