Datasheet

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Pro (Advanced) Screen

9.4 Pack Voltage Calibration

To calibrate the voltage at the AFE Pack pin, follow these steps:

1. Ensure that Voltage Calibration has been performed for the pack. Ensure that a stable charger voltage

higher than 8-V is present at Pack+.

2. Press the Pack Voltage button to calibrate.

Figure 10. Calibration Screen

10 Pro (Advanced) Screen

10.1 SMB Communication

The set of read/write operations over SMBus are not specific to any gas gauge. These are provided as

general-purpose communication tools (Figure 11).

10.2 Hexadecimal/Decimal Converter

These two boxes convert between Hexadecimal value and Decimal value as soon as values are typed into

the boxes. Invalid values may cause erroneous results.

SLUU697– November 2011 bq20z655EVM and bq34z651EVM SBS 1.1 Impedance Track

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