●The bq20z655-R1 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 bq20z655-R1 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The bq20z655-R1 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack which 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 bq20z655-R1 maximizes functionality and safety while minimizing 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 the Lifetime of the
●Battery
● Supports 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 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, or 5 Segment Liquid Crystal Display
●and LED for Battery-Pack Conditions
● Supports SHA-1 Authentication
● Complete Battery Protection and Gas Gauge
●Solution in One Package
Part 3D Model
