BQ27621YZFT-G1A

系统端Impedance Track电量计，具有动态电压关系 System-Side Impedance Track Fuel Gauge With Dynamic Voltage Correlation

The is a system-side Fuel Gauge with dynamic voltage correlation. It is a minimally configured microcontroller peripheral that provides system-side fuel gauging for single-cell Li-ion batteries. The device requires very little user configuration and system microcontroller firmware development. The bq27621-G1 uses the dynamic voltage correlation algorithm for fuel gauging. This process eliminates the need for a sense resistor when calculating remaining battery capacity mAh, state-of-charge %, battery voltage mV and temperature °C. Battery fuel gauging with the BQ27621-G1 requires connections only to PACK+ P+ and PACK- P- for a removable battery pack or embedded battery circuit.

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Resides on system board

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Supports embedded or removable batteries

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Powered directly from battery with integrated LDO

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Easy to configure fuel gauging based on the dynamic voltage correlation algorithm

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Reports remaining capacity and state of charge SOC with smoothing filter

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Automatically adjusts for self-discharge, temperature and rate changes

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Configurable SOC interrupt or battery low digital output warning

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Green product and no Sb/Br