• Description

ISL94212INZ-T Battery Multi-Function Controller IC Multi-Chemistry 64-TQFP (10x10)

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.



• Light electric vehicle (LEV); E-Moto; E-Bike

• Battery backup systems; Energy Storage Systems (ESS)

• Solar Farms

• Portable and semi-portable equipment



• 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



specification of ISL94212INZ-T


Integrated Circuits (ICs)
Power Management (PMIC)
Battery Management


Multi-Function Controller

Battery Chemistry


Number of Cells

1 ~ 12



Operating Temperature

-40°C ~ 85°C (TA)

Mounting Type

Surface Mount

Package / Case


Supplier Device Package

64-TQFP (10x10)

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