The ISL78600 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 incorporated: Manual Balance mode, Timed Balance mode, and Auto Balance mode. The Auto Balance mode terminates balancing functions when a charge transfer value specified by the host microcontroller has been met.
The ISL78600 communicates to a host microcontroller via an SPI interface and to other ISL78600 devices using a robust, proprietary, two-wire daisy chain system.
The ISL78600 is offered in a 64 Ld TQFP package and is specified for operation at a temperature range of -40°C to +105°C.
Key Features
- Up to 12-cell voltage monitors, support Li-ion CoO2, Li-ion Mn2O4, and Li-ion FePO4 chemistries
- Board level cell voltage measurement accuracy ±1.5mV
- 13-bit cell voltage measurement
- Pack voltage measurement accuracy ±100mV
- 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
- Hardwired and communications based fault notification
- Integrated watchdog shuts down device if communication is lost
- 2Mbps SPI AEC-Q100 qualified
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
Order Information| Part Number | Package Type | Weight(g) | Pins | MSL Rating | Peak Temp (°C) | RoHS Status |
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| ISL78600ANZ | 64 Ld TQFP | 0.345 | 64 | 3 | 260 | RoHS |
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| ISL78600ANZ-T | 64 Ld TQFP T+R | 0.345 | 64 | 3 | 260 | RoHS |
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| ISL78600EVKIT1Z | | | | N/A | | RoHS |
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