Rainbow-electronics MAX9921 Instrukcja Użytkownika Pobierz pdf (Strona 6)

MAX9921

Dual, 2-Wire Hall-Effect Sensor Interface

with Diagnostics

6 _______________________________________________________________________________________

Typical Operating Characteristics

BAT

= 14V, T

= +25°C, unless otherwise noted.)

BAT SUPPLY CURRENT

vs. V

BAT

IN OPERATING MODE

BAT VOLTAGE (V)

BAT CURRENT (mA)

MAX9921 toc01

19.0 19.5 20.0 20.5 21.0

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

= -40°C

BAT SUPPLY CURRENT

vs. V

BAT

IN OPERATING MODE

BAT VOLTAGE (V)

BAT CURRENT (mA)

MAX9921 toc02

19.0 19.5 20.0 20.5 21.0

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

= +25°C

BAT SUPPLY CURRENT

vs. V

BAT

IN OPERATING MODE

BAT VOLTAGE (V)

BAT CURRENT (mA)

MAX9921 toc03

19.0 19.5 20.0 20.5 21.0

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

= +125°C

BAT SUPPLY CURRENT

vs. V

BAT

IN OPERATING MODE

BAT VOLTAGE (V)

BAT CURRENT (mA)

MAX9921 toc04

5 1015202530354045505560

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

= -40°C

HALL INPUTS DISABLED

OPERATING MODE

BAT SUPPLY CURRENT

vs. V

BAT

IN OPERATING MODE

BAT VOLTAGE (V)

BAT CURRENT (mA)

MAX9921 toc05

5 1015202530354045505560

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

= +25°C

HALL INPUTS DISABLED

OPERATING MODE

BAT SUPPLY CURRENT

vs. V

BAT

IN OPERATING MODE

BAT VOLTAGE (V)

BAT CURRENT (mA)

MAX9921 toc06

5 1015202530354045505560

0.6

0.8

1.0

1.2

1.4

1.6

HALL INPUTS DISABLED

OPERATING MODE

= +125°C

BAT SUPPLY CURRENT

vs. V

BAT

IN SHUTDOWN MODE

BAT VOLTAGE (V)

BAT CURRENT (nA)

MAX9921 toc07

0 10203040

= +25°C

= +125°C

= -40°C

HALL INPUT CURRENT HYSTERESIS FOR

HIGH/LOW THRESHOLDS

vs. TEMPERATURE

TEMPERATURE (°C)

HALL INPUT CURRENT (mA)

MAX9921 toc08

-40 -25 -10 5 20 35 50 65 80 95 110 125

8.4

8.6

8.8

9.0

9.2

9.4

9.6

9.8

10.0

LOW THRESHOLD

HIGH THRESHOLD

HALL INPUT CURRENT HYSTERESIS FOR

HIGH/LOW THRESHOLD vs. V

BAT

BAT VOLTAGE (V)

HALL INPUT CURRENT (mA)

MAX9921 toc09

6 8 10 12 14 16 18

8.6

8.8

9.0

9.2

9.4

9.6

9.8

LOW THRESHOLD

HIGH THRESHOLD

1 2 3 4 5 6 7 8 9 10 11 ... 14 15

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