DESCRIPTION
●The bq20z95 SBS-compliant gas gauge and protection IC is a single IC solution designed for battery-pack or in-system installation. The bq20z95 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using its integrated high-performance analog peripherals, monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack as well and reports the information to the system host controller over a serial-communication bus. Together with the integrated analog front-end (AFE) short-circuit and overload protection, the bq20z95 maximizes functionality and safety while minimizing external component count, cost, and size in smart battery circuits.
●FEATURES
●• Next Generation Patented Impedance Track™ Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries
● – Better Than 1% Error Over 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
●• Powerful 8-Bit RISC CPU With Ultra-Low Power Modes
●• Full Array of Programmable Protection Features
● – Voltage, Current, and Temperature
●• Supports SHA-1 Authentication
●• Complete Battery Protection and Gas Gauge Solution in One Package
●• Small 44-Pin TSSOP (DBT) Package
●APPLICATIONS
●• Notebook PCs
●• Medical and Test Equipment
●• Portable Instrumentation
