bq34z651

bq34z651 www.ti.com SLUSAL7 – AUGUST 2011 SBS 1.1-Compliant Gas Gauge and Protection Enabled With Impedance Track™ and External Battery Heater Control Check for Samples: bq34z651 FEATURES 1 2 Next Generation Patented Impedance Track™ Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries – Better Than 1% Error Over the Lifetime of the Battery Supports the Smart Battery Specification SBS v1.1 Flexible Configuration for 2-Series to 4-Series Li-Ion and Li-Polymer Cells Battery Temperature Heater Control Powerful 8-Bit RISC CPU with Ultralow Power Modes Full Array of Programmable Protection Features – Voltage, Current, and Temperature Satisfies JEITA Guidelines Added Flexibility to Handle More Complex Charging Profiles Lifetime Data Logging Drives 3-, 4-, and 5-Segment LED Display for Battery-Pack Conditions Supports SHA-1 Authentication Complete Battery Protection and Gas Gauge Solution in One Package Available in a 44-Pin TSSOP (DBT) package APPLICATIONS Notebook PCs Medical and Test Equipment Portable Instrumentation DESCRIPTION The bq34z651 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is a single IC solution designed for battery-pack or in-system installation. The bq34z651 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using its integrated high-performance analog peripherals. The bq34z651 monitors capacity change,...