GG25L Datasheet, PDF (1/28 Pages) STMicroelectronics – Fitness and healthcare

GG25L
Gas gauge IC with alarm output
CSP (1.4 x 2.0 mm)
Features
 OptimGauge^TM algorithm
 0.25% accuracy battery voltage monitoring
 Coulomb counter and voltage-mode gas gauge
operations
 Robust initial open-circuit-voltage (OCV)
measurement at power up with debounce
delay
 Low battery level alarm output with
programmable thresholds
 Internal temperature sensor
 Battery swap detection
 Low power: 45 µA in power-saving mode, 2 µA
max in standby mode
 1.4 x 2.0 mm 10-bump CSP package
Datasheet - production data
Applications
 Wearable
 Fitness and healthcare
 Portable medical equipment
Description
The GG25L includes the hardware functions
required to implement a low-cost gas gauge for
battery monitoring. The GG25L uses current
sensing, Coulomb counting and accurate
measurements of the battery voltage to estimate
the state-of-charge (SOC) of the battery. An
internal temperature sensor simplifies
implementation of temperature compensation.
An alarm output signals a low SOC condition and
can also indicate low battery voltage. The alarm
threshold levels are programmable.
The GG25L offers advanced features to ensure
high performance gas gauging in all application
conditions.
Order code
GG25LJ ⁽¹⁾
GG25LAJ ⁽²⁾
1. 4.35 V battery option
2. 4.20 V battery option
Table 1. Device summary
Temperature range
Package
-40 °C to +85 °C
CSP-12
Packing
Tape and reel
Marking
O22
O23
February 2014
This is information on a product in full production.
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