BQ3055

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq3055 SLUSA91C – OCTOBER 2010 – REVISED OCTOBER 2015 bq3055 CEDV Gas Gauge and Battery Pack Manager for 2-Series, 3-Series, and 4-Series Li-Ion Batteries 1 Features 1 Fully Integrated 2-Series, 3-Series, and 4-Series Li-Ion or Li-Polymer Cell Battery Pack Manager and Protection Advanced Compensated End-of-Discharge Voltage (CEDV) Gauging High-Side N-CH Protection FET Drive Integrated Cell Balancing Low-Power Modes – Low Power: < 180 µA – Sleep < 76 µA Full Array of Programmable Protection Features – Voltage – Current – Temperature Sophisticated Charge Algorithms – JEITA – Enhanced Charging – Adaptive Charging Supports Two-Wire SMBus v1.1 Interface SHA-1 Authentication Compact Package: 30-Lead TSSOP 2 Applications Notebook and Netbook PCs Medical and Test Equipment Portable Instrumentation 3 Description The bq3055 device is a fully integrated, single-chip, pack-based solution that provides a rich array of features for gas gauging, protection, and authentication for 2-series, 3-series, and 4-series cell Li-Ion and Li-Polymer battery packs. Using its integrated high-performance analog peripherals, the bq3055 device measures and maintains an accurate record of available capacity, voltage, current, temperature, and other critical parameters in Li-Ion or Li-Polymer batteries, and reports this information to the system host controller over an SMBus v1.1 compatible in...