Rainbow Electronics MAX9921 - Manual (Page 6)

MAX9921
Dual, 2-Wire Hall-Effect Sensor Interface
with Diagnostics
6 _______________________________________________________________________________________
Typical Operating Characteristics
(V BAT = 14V, T A = +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
T A = -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
T A = +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
T A = +125 °C
BAT SUPPLY CURRENT
vs. V BAT IN OPERATING MODE
BAT VOLTAGE (V)
BAT CURRENT (mA)
MAX9921 toc04
5 10 15 20 25 30 35 40 45 50 55 60
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
T A = -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 10 15 20 25 30 35 40 45 50 55 60
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
T A = +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 10 15 20 25 30 35 40 45 50 55 60
0.6
0.8
1.0
1.2
1.4
1.6
HALL INPUTS DISABLED
OPERATING MODE
T A = +125 °C
BAT SUPPLY CURRENT
vs. V
BAT
IN SHUTDOWN MODE
BAT VOLTAGE (V)
BAT CURRENT (nA)
MAX9921 toc07
0 10 20 30 40
0
5
10
15
20
25
30
35
40
45
50
T A = +25 °C
T A = +125 °C
T A = -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