GG25L datasheet(1/28 Pages) STMICROELECTRONICS

部件名	GG25L

功能描述	Fitness and healthcare

PDF	28 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 28 page

This is information on a product in full production.

February 2014

DocID025995 Rev 1

1/28

GG25L

Gas gauge IC with alarm output

Datasheet

- production data

Features

 OptimGaugeTM 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

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.

CSP (1.4 x 2.0 mm)

Table 1. Device summary

Order code

Temperature range

Package

Packing

Marking

GG25LJ (1)

-40 °C to +85 °C

CSP-12

Tape and reel

O22

GG25LAJ (2)

O23

1. 4.35 V battery option

2. 4.20 V battery option

www.st.com

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