BQ20Z95数据手册集成电路（IC）的电池管理规格书PDF

描述 Description

The bq20z95 SBS-compliant gas gauge and protection IC is a single IC solution designed forbattery-pack or in-system installation. The bq20z95 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analogperipherals, 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 bq20z95 maximizes functionality and safety while minimizing external component count, cost, and size in smart battery circuits.\r
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The implemented Impedance Track TM 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 TM Technology Accurately Measures Available Charge in Li-lon and Li-Polymer Batteries\r
-Better Than 1% Error Over Lifetime of the Battery\r
• Supports the Smart Battery Specification SBS V1.1\r
• Flexible Configuration for 2 to 4 Series Li-lon and Li-Polymer Cells\r
• Powerful 8-Bit RISC CPU With Ultra-Low Power Modes\r
• Full Array of Programmable Protection Features\r
-Voltage, Current, and Temperature\r
• Supports SHA-1 Authentication\r
• Complete Battery Protection and Gas Gauge Solution in one Package\r
• Small 44-Pin TSSOP(DBT) package

应用 Application

• Notebook PCs\r
• Medical and Test Equipment\r
• Portable Instrumentation