Question: Can the MAX17201/05/11/15 REG2 & REG3 internal LDO's be used to supply external circuitry?
Answer: No, the internal LDO brought out on pin REG2 of the MAX172xx (& REG3 on MAX172x5) are meant…
No the MAX17201 IC cannot be used to fuel gauge NiMH batteries. The MAX17201 uses the ModelGauge algorithms which were designed for Li-ion batteries. The NiMH battery cell charge and discharge characteristics…
> Burn NV memory with final configuration INI > Once burnt, the fuel gauge configuration will be retained even after the IC resets > Host software does not need to load battery model when using a pack…
The DNR bit in the FStat Register (03Dh) is cleared (i.e. DNR=0) when the output registers have been updated. During initialization the firmware should wait for the DNR bit to clear before reading data…
The NVBusy bit in the CommStat register (i.e. 61h) tracks if non-volatile memory is busy (NVBusy = 1) or idle (NVBusy = 0). There is also an NVError bit in the CommStat register that is set if there was…
For primary cells, the SOC accuracy isn't really relevant, since the IC is just providing coulomb counter data. For this purpose, the gain and offset error of the part are much more relevant. With the…
The m5 algorithm normally takes a few charge/discharge cycles to learn the full and empty points. During this learning phase, the voltage model is the dominant input to the fuel gauge mixing algorithm…
The MAX17201, MAX17205, MAX17211, and MAX17215 are limited to 7 writes to NV memory.
As such, it is useful during design to be able to test numerous configuration settings to optimize performance. …