BQ20Z75 Datasheet PDF

●DESCRIPTION

●The bq20z75-V180 SBS-compliant gas gauge and protection IC is a single IC solution designed for battery-pack or in-system installation. The bq20z75-V180 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 bq20z75-V180 maximizes functionality, safety and minimize 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

●      – Instant Accuracy – No Learning Cycle Required

●• Supports the Smart Battery Specification SBS V1.1

●• Flexible Configuration for 2 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

●• small 38-Pin TSSOP (DBT) Package

●APPLICATIONS

●• Notebook PCs

●• Medical and Test Equipment

●• Portable Instrumentation