Multicell battery stack monitor measures up to 12 series-connected battery cells with less than 1.5 mV lifetime total measurement error. The 0 V to 5 V cell measurement range supports common battery chemistries, and all 12 cells can be measured in 304 µs. The device uses a built-in isoSPI interface for 2 Mb isolated serial communication over a single twisted pair up to 20 m. Passive cell balancing is supported up to 300 mA per channel with programmable PWM control.
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| Function | Multicell battery stack monitor |
| Monitored cells | Up to 12 series-connectedcells |
| Cell measurement range | 0 to 5V |
| Lifetime total measurement error | <1.5mV |
| All-cell measurement time | 304µs |
| ADC resolution | 16bit |
| Interface | isoSPI |
| isoSPI data rate | 2Mb/s |
| isoSPI cable length | Up to 20m |
| Cell balancing current | Up to 300 per channelmA |
| Cell balancing control | Programmable PWM |
| Package | LQFP |
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