DESCRIPTION
●The bq20z45-R1 SBS-compliant gas gauge and protection IC is a single IC solution designed for
●battery-pack or in-system installation. The bq20z45-R1 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.
●FEATURES
●• 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
●• Flexible Configuration for 2 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
●• Supports SHA-1 Authentication
●• Complete Battery Protection and Gas Gauge Solution in One Package
●• Available in a 38-Pin TSSOP (DBT) package
●APPLICATIONS
●• Notebook PCs
●• Medical and Test Equipment
●• Portable Instrumentation
