Rainbow-electronics MAX17047 Bedienungsanleitung PDF herunterladen (Seite 5)

�� Maxim Integrated Products 5

MAX17047

ModelGauge m3 Fuel Gauge

Typical Operating Characteristics (continued)

(T

A

= +25°C, unless otherwise noted.)

CURRENT ADC ERROR

vs. TEMPERATURE

MAX17047 toc04

CURRENT FORCED (A)

CURRENT ADC ERROR (mA)

10-1

-10

-5

0

5

10

15

-15

-2 2

T

A

= +70°C

T

A

= -20°C

T

A

= +25°C

RESPONSE TO TEMPERATURE TRANSIENT

AT CONSTANT-CURRENT LOAD

MAX17047 toc06

TIME (Hr)

SOC (%), TEMPERATURE (°C)

V

CELL

(V)

21

10

20

30

40

50

60

EMPTY VOLTAGE

TEMPERATURE

SOC

AV

SOC

REP

70

80

90

100

0

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4.0

4.2

4.4

2.4

0 3

V

CELL

RISES WITH

TEMPERATURE DURING

CONSTANT LOAD

FUEL GAUGE CHANGES

TRAJECTORY AFTER

TEMPERATURE CHANGE

908060 7020 30 40 50100 100

AUXILIARY INPUT ADC ERROR

vs. TEMPERATURE

MAX17047 toc05

AIN RATIO TO V

TT

(%)

AUXILIARY INPUT ADC ERROR (%)

-0.80

-0.60

-0.40

-0.20

0

0.20

0.40

0.60

0.80

1.00

-1.00

T

A

= +70°C

T

A

= -20°C

T

A

= +25°C

END-OF-CHARGE DETECTION

TIME (Hr)

CAPACITY (mAh); CURRENT (mA)

642

-1000

0

1000

2000

3000

4000

5000

6000

7000

8000

-2000

2.9

3.1

3.3

3.5

3.7

3.9

4.1

4.3

4.5

4.7

2.7

0 8

V

CELL

(V)

VALID END-OF-CHARGE

DETECTION EVENT

NEAR-FULL

FALSE CHARGE

TERMINATION

EVENTS

FullCAP

V

CELL

CURRENT

RemCap

REP

MAX17047 toc07

1 2 3 4 5 6 7 8 9 10 ... 45 46

MAX17047 1
ModelGauge m3 Fuel Gauge 1

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