To set VEmpty to less than 3.0V in the evaluation GUI, open the Register Viewer and manually write the VEmpty register to the desired value.
For example writing 0x8761 to the VEmpty register would generate…
The criteria to select the sense resistor in a Maxim Fuel Gauge should be to optimize the analog and digital range of the Fuel Gauge.
For the analog range, Maxim Fuel Gauges typically have a +/-51.2mV…
Hybrid coulomb-counting fuel gauges measure both battery voltage and battery current to estimate percent State-of-Charge (SOC). The effect of current sensing measurement errors on fuel gauging error depends…
The REG2 pin is tied to an internal 1.8V LDO. The REG3 pin (MAX17205/17215 only) is tied to an internal 3.4V LDO. These rails are for internal use only. They CANNOT supply any current to external devices…
MAX17201 tracks the battery age in calendar time, and cycles age. This data is periodically saved to NV memory. During production, the manufacturer could choose to lock the NV memory to prevent it from…
The secret of the MAX17201/05/11/15 can only be updated or cleared 5 times total. New units have their secret value already cleared to all 0s. Clearing or updating the Secret uses one Secret update cycle…
For the offset issue, you can consider using a WLP version of the IC. WLP has a dedicated GND pin, so you can route it to the ground connection separate from the measurement pin. This will help to alleviate…
Question:
There is a need to configure MAX17201 and MAX17261 evaluation boards for using them with two AA Energizer L91 primary batteries in series. How do I request a custom .ini file for the primary…
Config.SHDN is reset to 0 at power-up and upon exiting shutdown mode.
Any rising edge of any communication line will force the fuel gauge to exit shutdown mode and clear the Config.SHDN bit.
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Since the EVKIT is set up in such a way to continuously read from the MAX17201, the I2C communication prevents the IC of going into shutdown.
You can simply write 0x2294 to the Config register and then…