The Texas Instruments bq2028 serial 4Kb nonvolatile memory (EEPROM) with integrated
temperature sensor and LDO linear regulator provides pack-side memory storage and temperature
monitoring for a single-cell system-side battery fuel gauge solution such as the bq27505-E1.
The bq2028 communicates with the bq27505-E1 gauge over a single-wire HDQ interface with a
minimal overhead protocol yet ensures error free data transfer.
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