DATASHEET
ISL94203 FN7626
Rev 5.00
February 17, 2016 3-to-8 Cell Li-ion Battery Pack Monitor Features The ISL94203 is a Li-ion battery monitor IC that supports from
3 to 8 series connected cells. It provides full battery monitoring
and pack control. The ISL94203 provides automatic shutdown
and recovery from out of bounds conditions and automatically
controls pack cell balancing. Eight cell voltage monitors support Li-ion CoO2, Li-ion
Mn2O4 and Li-ion FePO4 chemistries Applications Stand-alone pack control -no microcontroller needed Multiple voltage protection options
(each programmable to 4.8V; 12-bit digital value)
and selectable overcurrent protection levels Programmable detection/recovery times for overvoltage,
undervoltage, overcurrent and short-circuit conditions Power tools Configuration/calibration registers maintained in EEPROM Battery back-up systems Open battery connect detection E-bikes Integrated charge/discharge FET drive circuitry with built-in
charge pump supports high-side N-channel FETs The ISL94203 is highly configurable as a stand-alone unit, but
can be used with an external microcontroller, which
communicates to the IC through an I2C interface. Related Literature Cell balancing uses external FETs with internal state
machine or external microcontroller AN1952, “ISL94203EVKIT1Z Evaluation Kit User Guide” Enters low power states after periods of inactivity. Charge or
discharge current detection resumes normal scan rates P+ LDMON CHMON C2
C3 C1 DFET VDD CFET VBATT PCFET CS2 43V CS1 43V VC8
FETSOFF CB7
VC6 INT
RGO CB6
VC5
CB5 …