BQ2084DBT PDF

All rights reserved. Production processing does not necessarily include testing of all parameters. The information includes nominal capacity and voltage, self-discharge rate, rate compensation factors, and other programmable cell-modeling factors used to accurately adjust remaining capacity for use-conditions based on time, rate, and temperature. The bqV also automatically calibrates or learns the true battery capacity in the course of a discharge cycle from programmable near full to near empty levels. The bq analog front-end AFE protection IC is used to maximize functionality and safety and minimize component count and cost in smart battery circuits.

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The bq does not measure charge or discharge counts below the digital filter threshold. The digital filter. DF 0x2c and should be set sufficiently high to prevent false signal.

While monitoring SR1 and SR2 for charge and discharge currents, the bq monitors the individual series. The bq configures the bq to present the selected cell to the CELL. The internal ADC of the bq then. The bq then reports the Voltage and the individual cell.

There is an additional SMBus command 0x The bq uses the SR1 and SR2 inputs to measure and calculate the battery charge and discharge current. This value is reported via the SBS command Current. AverageCurrent is implemented as a single pole IIR. The TS input of the bq in conjunction with an NTC thermistor measures the battery temperature as shown. The bq reports temperature via the SBS command Temperature.

The bq can also be configured to use its internal temperature sensor by setting the IT bit in. Data flash locations DF 0xb5 through DF 0xc0 also have to be changed to. Table 1. The operational overview in Figure 1 illustrates the gas gauge operation of the bq Table 3 describes the.

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