●The bq34z950 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 bq34z950 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using its integrated high-performance analog peripherals. The bq34z950 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. SMBus and single-wire DQ communication interfaces are both available. Together with the integrated analog front-end (AFE) short-circuit and overload protection, the bq34z950 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 the Smart Battery Specification SBS V1.1
● Optional DQ Communication Interface
● 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
● Temperature
● Satisfies JEITA Guidelines
● Added Flexibility to Handle More Complex Charging Profiles
● Drives 3-, 4-, and 5-Segment LED Display for Battery-Pack Conditions
● Supports SHA-1 Authentication
● Complete Battery Protection and Gas Gauge Solution in One Package
● Available in a 44-Pin TSSOP (DBT) Package
