Rainbow-electronics DS2781 Manuel d'utilisateur télécharger pdf (Page 12)

DS2781: Two-Cell Standalone Fuel Gauge IC

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Figure 11. Top Level Algorithm Diagram

Capacity Look-up

Available Capacity Calculation

ACR Housekeeping

Age Estimator

Learn Function

Cell

Parameters

16 bytes

(EEPROM)

FULL FULL(T) (R)

Active Empty AE(T) (R)

Standby Empty SE(T) (R)

Remaining Active Absolute

Capacity (RAAC) mAh (R)

Sense Resistor’

(RSNSP) (1byte EE)

Voltage (R)

Temperature (R)

Current (R)

Accumulated

Current (ACR) (R/W)

Aging Cap (AC)

(2 bytes EE)

Charge Voltage

(VCHG) (1 byte EE)

Remaining Stand-by Absolute

Capacity (RSAC) mAh (R)

Remaining Active Relative

Capacity (RARC) % (R)

Remaining Stand-by Relative

Capacity (RSRC) % (R)

Age Scalar (AS)

(1 bytes EE)

Min Chg Current

(IMIN) (1 byte EE)

Active Empty

Voltage (VAE)

(1 byte EE)

Active Empty

Current (IAE)

(1 byte EE)

Average Current (R)

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 29 30

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