●The bq20z75 SBS-compliant gas gauge and protection IC is a single IC solution designed for battery-pack or in-system installation. The bq20z75 measures andmaintains 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 maximizes functionality, safety and minimize external component count, cost and size in smart battery circuits.
●The implemented Impedance Track gas gauging technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables remaining capacity to be calculated with discharge rate, temperature, and cell aging all accounted for during each stage of every cycle with high accuracy.
● Next Generation Patented Impedance Track Technology accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries
● Better than 1% Error Over Lifetimeof 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
●IMPEDANCE
