MAX9921 Maxim Integrated Products, MAX9921 Datasheet - Page 6

• Manufacturer Part Number: MAX9921
• Description: 2-Wire Hall-Effect Sensor Interface
• Manufacturer: Maxim Integrated Products

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Dual, 2-Wire Hall-Effect Sensor Interface
with Diagnostics
(V
6
BAT
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
50
45
40
35
30
25
20
15
10
_______________________________________________________________________________________
5
0
19.0
= 14V, T
5 10 15 20 25 30 35 40 45 50 55 60
0
T
T
A
A
= -40°C
= -40°C
OPERATING MODE
vs. V
vs. V
vs. V
19.5
BAT SUPPLY CURRENT
BAT SUPPLY CURRENT
BAT SUPPLY CURRENT
10
A
BAT
BAT
BAT
= +25°C, unless otherwise noted.)
BAT VOLTAGE (V)
BAT VOLTAGE (V)
BAT VOLTAGE (V)
IN OPERATING MODE
IN OPERATING MODE
IN SHUTDOWN MODE
20.0
20
HALL INPUTS DISABLED
T
A
= +125°C
T
A
= -40°C
T
A
20.5
30
= +25°C
21.0
40
10.0
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
9.8
9.6
9.4
9.2
9.0
8.8
8.6
8.4
19.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
5 10 15 20 25 30 35 40 45 50 55 60
HALL INPUT CURRENT HYSTERESIS FOR
T
T
A
A
OPERATING MODE
HIGH THRESHOLD
LOW THRESHOLD
= +25°C
= +25°C
vs. V
vs. V
HIGH/LOW THRESHOLDS
BAT SUPPLY CURRENT
19.5
BAT SUPPLY CURRENT
BAT
BAT
vs. TEMPERATURE
TEMPERATURE (°C)
BAT VOLTAGE (V)
BAT VOLTAGE (V)
IN OPERATING MODE
IN OPERATING MODE
20.0
HALL INPUTS DISABLED
Typical Operating Characteristics
20.5
21.0
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
1.6
1.4
1.2
1.0
0.8
0.6
9.8
9.6
9.4
9.2
9.0
8.8
8.6
19.0
5 10 15 20 25 30 35 40 45 50 55 60
HALL INPUT CURRENT HYSTERESIS FOR
6
HIGH THRESHOLD
LOW THRESHOLD
T
T
OPERATING MODE
A
A
HIGH/LOW THRESHOLD vs. V
= +125°C
vs. V
= +125°C
vs. V
8
19.5
BAT SUPPLY CURRENT
BAT SUPPLY CURRENT
BAT
BAT
10
BAT VOLTAGE (V)
BAT VOLTAGE (V)
BAT VOLTAGE (V)
IN OPERATING MODE
IN OPERATING MODE
20.0
HALL INPUTS DISABLED
12
14
20.5
16
BAT
21.0
18