The LTC6801 multicell monitor IC can detect overvoltage and undervoltage conditions of up to 12 series connected cells, and provides short circuit protection
The document introduces the LTC6801 as an integrated solution for monitoring up to twelve series-connected cells in nickel-based or lithium-based chemistries. It explains how premature deterioration occurs when cells are allowed to overdischarge, leading to irreversible chemical processes that shorten pack life.
Key features of the LTC6801 include programmable threshold levels set by pin-straps for undervoltage (UV) and overvoltage (OV), with settings ranging from 0.77V to 2.88V for UV and 3.7V to 4.5V for OV. The device supports cascading interconnections to handle extended chains of devices, providing galvanic isolation between stacked units.
| OV Settings Range | 3.7V to 4.5V |
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To maximize cycle life and ensure safety in rechargeable battery packs by detecting individual cell overvoltage and undervoltage conditions.