ISL94203_15 Datasheet, PDF (1/63 Pages) Intersil Corporation – 3-to-8 Cell Li-ion Battery Pack Monitor

DATASHEET
3-to-8 Cell Li-ion Battery Pack Monitor
ISL94203
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.
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.
Applications
• Power tools
• Battery back-up systems
• E-bikes
Features
• Eight cell voltage monitors support Li-ion CoO₂, Li-ion
Mn₂O₄ and Li-ion FePO4 chemistries
• 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
• Configuration/calibration registers maintained in EEPROM
• Open battery connect detection
• Integrated charge/discharge FET drive circuitry with built-in
charge pump supports high-side N-channel FETs
• Cell balancing uses external FETs with internal state
machine or external microcontroller
• Enters low power states after periods of inactivity. Charge or
discharge current detection resumes normal scan rates
P+
43V
43V
GND
VBATT
VC8
CB8
VC7
CB7
VC6
CB6
VC5
CB5
VC4
CB4
VC3
CB3
VC2
CB2
VC1
CB1
VC0
VSS
ISL94203
PSD
FETSOFF
INT
RGO
SD
EOC
SCL
SDA
TEMPO
xT1
xT2
VREF
ADDR
FIGURE 1. TYPICAL APPLICATION DIAGRAM
CHRG
P-
August 17, 2015
1
FN7626.4
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC. 2012, 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.