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SLUSCB7A – MARCH 2016 – REVISED APRIL 2016 bq27220 Single-Cell CEDV Fuel Gauge
1 Features 3 Description The Texas Instruments bq27220 battery fuel gauge is
a single-cell gauge that requires minimal userconfiguration and system microcontroller firmware
development, leading to quick system bring-up. The
bq27220 device uses the Compensated End-ofDischarge Voltage (CEDV) algorithm for fuel gauging,
and provides information such as remaining battery
capacity (mAh), state-of-charge (%), runtime-to-empty
(min), battery voltage (mV), temperature (В°C), and
state-of-health (%). 1 Single-Cell Li-Ion Battery Fuel Gauge
– Resides in Pack or on System Board
– Supports Embedded or Removable Batteries
– Powers Directly from Battery with Integrated
LDO
– Supports a Low-Value (10-mΩ) External Sense
Resistor
Ultra-Low Power Consumption in NORMAL
(50 ВµA) and SLEEP (9 ВµA) Modes …
