ISL78610 Datasheet, PDF (1/98 Pages) Intersil Corporation – Multi-Cell Li-Ion Battery Manager

DATASHEET
Multi-Cell Li-Ion Battery Manager
ISL78610
The automotive grade ISL78610 12-cell battery pack monitor
can be used as a stand-alone battery monitor or as a
redundant back-up device in an ASIL compliant system. It
supervises up to 12 series connected cells and features cell
voltage and temperature monitoring along with system
diagnostics.
The ISL78610 communicates to a host microcontroller via an
SPI interface and to other ISL78610 devices using a robust,
proprietary, two-wire daisy chain system.
The ISL78610 is offered in a 64 Ld TQFP package and is
specified for operation at a temperature range of -40°C to
+105°C.
Applications
• Hybrid Electric Vehicle (HEV), Plug-in Hybrid Electric Vehicle
(PHEV) and Electric Vehicle (EV) battery packs
• Electric motorcycle battery packs
• Backup battery and energy storage systems requiring high
accuracy management and monitoring
• Portable and semiportable equipment
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
• 14-bit pack voltage and temperature measurements
• Cell voltage scan rate of 19.5µs per cell (234µs to scan
12 cells)
• Internal and external temperature monitoring
• Up to four external temperature inputs
• Robust daisy chain communications system
• Integrated system diagnostics for all key internal functions
• Integrated watchdog shuts down device if communication is
lost
• 2Mbps SPI
• AEC-Q100 qualified
Related Literature
• UG077, “ISL78610EVKIT1Z Evaluation Kit User Guide”
VG1 VG1
ISL78610
DHi2
DLo2
TO OTHER DEVICES (OPTIONAL)
ISL78610
VG2 VG2
DHi2
DLo2
DHi1
DLo1
SCLK
DOUT
DIN
CS
DATA READY
FAULT
EN
HOST
MICRO
VG1
VG1
MONITOR BOARD (Master or Stand-alone)
VG2
MONITOR BOARD (Daisy Chain - Optional)
FIGURE 1. TYPICAL APPLICATION
June 16, 2016
1
FN8830.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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