Impedance Track™ Technology Enabled Battery Management Solution Reference Design

This reference design is designed for the bq20z65/bq29412 battery management system. It includes one bq20z65/bq29412 circuit module and a link to Windows™-based PC software. The circuit module design includes one bq20z65 integrated circuit (IC): one bq29412 IC and all other onboard components necessary to monitor and predict capacity: perform cell balancing: monitor critical parameters: protect the cells from overcharge: over-discharge: short-circuit: and overcurrent in 2-: 3- or 4-series cell Li-ion or Li-polymer battery packs. The reference design connects directly across the cells in a battery. With the EV2400 interface board and software: the user can read the bq20z65 data registers: program the chipset for different pack configurations: log cycling data for further evaluation and evaluate the overall functionality of bq20z65/bq29412 under different charge and discharge conditions.

Number of series cells: 2 to 4SMaximum input volts: 25 VMaximum charge current: 3 ACommunication: SMBusImpedence track: integrated protectionThis reference design requires the use of a communications tranceiver; EV2400