Maxim fuel gauge battery characterization for customer's batteries is done at 0 ֯ C, +20 ֯ C and +40 ֯ C.
Regarding the characterization at 70 ֯ C, we characterize up to 60 ֯ C. The reason being that…
The MAX17055 alert pin is an active low output. The drive range is from the supply (BATT+ ) to GND. This limits the high side FET to be a PFET.
A PFET solution will require an additional inverter on…
No, you do not need to backup any registers before entering shutdown mode in the MAX17055. In shutdown mode, the internal LDO regulator is disabled, all activity stops, A/D register and fuel-gauge output…
MAX17055 has no minimum battery capacity limits because unlike the MAX17262 the sense resistor can be changed to accommodate any value of battery capacity.
The MAX17055 does not have hardware comparators for fast protection on overdischarge, overcharge, or short circuit. These kind of events can damage the cells much faster than the MAX17055 can protect them…
We would recommend they start with the EZ config model. This will accelerate their development cycle, since there is no need for characterization. If they find that the EZ config model observes an error…
The MAX17055 supports the slave address 0x6C (or 0x36 for 7 MSbit address).
Regardless of the fuel gauge configuration, if the I2C bus is functional, you will be able to read Vcell content. If you have…
For calculations regarding voltage, current, and capacity of the MAX17055, please use the register resolutions in the table on page 16 of the datasheet. For example, for a 5000mAh battery: If we use a…
Registers are automatically updated once per firmware cycle, which happen every 175.8ms in Active mode and every 5.625s in Hibernate mode by default. The Hibernate mode period can be modified through the…