BQ20Z65-R1数据手册TI中文资料规格书

描述 Description

The bq20z65-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 bq20z65-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 bq20z65-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 bq20z65-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.

特性 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
• 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
• APPLICATIONS
• Notebook PCs
• Medical and Test Equipment
• Portable Instrumentation