ISL94212数据手册集成电路（IC）的电池管理规格书PDF

描述 Description

The ISL94212 Li-ion battery manager IC supervises up to 12 series connected cells. The part provides accurate monitoring, cell balancing and extensive system diagnostics functions. Three cell balancing modes are provided: Manual Balancing mode, Timed Balancing mode and Auto Balance mode. The Auto Balance mode terminates balancing functions when a charge transfer value has been met. The ISL94212 communicates to a host microcontroller via an SPI interface and to other ISL94212 devices using a robust, proprietary, two-wire Daisy Chain system. The ISL94212 is offered in a 64 Ld TQFP package and is specified for an operational temperature range of -40°C to +85°C.

特性 Features

• Up to 12-cell voltage monitors, support Li-Ion CoO2, Li-ion Mn2O4, and Li-ion FePO4 chemistries
• Cell voltage measurement accuracy ±10mV
• 13-bit cell voltage measurement
• Pack voltage measurement accuracy ±180mV
• 14-bit pack voltage and temperature measurements
• Cell voltage scan rate of 19.5µs per cell (234µs to scan 12 cells)
• Internal temperature monitoring
• Up to four external temperature inputs
• Robust daisy chain communications system
• Integrated system diagnostics for all key internal functions
• Hardwired and communications based fault notification
• Integrated watchdog shuts down device if communication is lost
• 7µA shutdown current: Enable = VSS
• 2Mbps SPI

应用 Application

• 电池管理系统