AXP288D datasheet(57/110 Pages) XPOWER

57 / 110 page

AXP288

PMIC Optimized For Multi-Core High-Performance System

AXP288 Datasheet V1.06

The Fuel Gauge can be enabled or disabled via REG B8H. The Battery low warning can be set in REG E6, and IRQ (REG 4BH) will

be sent out to alert the platform when the battery capacity percentage is lower than the warning level set in REG E6H.

Once a default battery is selected for a particular design, it is highly recommended to calibrate the battery to achieve

better Fuel Gauge accuracy. The calibration procedure is documented in separate Application Guide – AXP288 Battery

Calibration Application Guide. Once the calibration data are available, user can write the calibration info to the following

default OCV percentage value. Additionally, the Fuel Gauge system is capable to learn the battery characteristic on each Full

charge cycle. Information such as Battery Maximum capacity (REG E0H, REG E1H) and Rdc (REG BAH, REG BBH) will be

updated automatically over time.

OCV Percentage Table

Table 9-45

Reg Address

Percent

OCV

2.9920

RW(H)

3.1328

RW(H)

3.2736

RW(H)

3.3440

RW(H)

3.4144

RW(H)

3.4848

RW(H)

3.5552

RW(H)

3.5904

RW(H)

3.6080

RW(H)

3.6256

RW(H)

3.6432

RW(H)

3.6608

RW(H)

3.6960

RW(H)

3.7312

RW(H)

3.7664

RW(H)

3.8016

RW(H)

3.8192

RW(H)

3.8368

RW(H)

3.8544

RW(H)

3.8720

RW(H)

3.9072

RW(H)

3.9424

RW(H)

3.9776

RW(H)

4.0128

RW(H)

4.0480

RW(H)

4.0832

RW(H)

4.1184

RW(H)

4.1360

RW(H)

4.1536

RW(H)

4.1888

RW(H)

4.224

RW(H)

4.2592

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