BQ20Z95DBTRG4

Gas Gauge Li-Ion/Li-Pol 0V to 25V 44Pin TSSOP T/R

DESCRIPON

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