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