MAX9921 Maxim Integrated Products, MAX9921 Datasheet - Page 7

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

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(V
BAT
100
100
95
90
85
80
75
70
65
60
50
40
30
20
10
95
90
85
80
75
70
65
60
55
50
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
MAXIMUM FREQUENCY ON HALL INPUTS
= 14V, T
IN_ BLANKING TIME AT HALL SWITCH
(FILTER DELAY) vs. TEMPERATURE
POWER-UP vs. TEMPERATURE
DELAY FROM IN_ FAULT TO ERR
IN1 AND IN2, 50% DUTY CYCLE
A
vs. TEMPERATURE
TEMPERATURE (°C)
= +25°C, unless otherwise noted.)
TEMPERATURE (°C)
TEMPERATURE (°C)
Dual, 2-Wire Hall-Effect Sensor Interface
_______________________________________________________________________________________
180
160
140
120
100
Typical Operating Characteristics (continued)
80
60
40
20
0
5
4
3
2
1
0
7
6
5
4
3
2
1
0
AND FALLING EDGES FOR BOTH CHANNELS
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
IN_ PULSE LENGTH REJECTED BY FILTER
DELAY DIFFERENCE BETWEEN RISING
IN_ CURRENT RAMP RATE AFTER
IN1 AND IN2 WITH
POSITIVE PULSE
TURN-ON vs. TEMPERATURE
IN1 AND IN2
TO OUT_ vs. TEMPERATURE
vs. TEMPERATURE
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
IN1 AND IN2 WITH
NEGATIVE PULSE
with Diagnostics
250
200
150
100
6.2
6.1
6.0
5.9
5.8
5.7
5.6
5.5
5.4
5.3
5.2
10
50
0
9
8
7
6
5
DELAY FROM IN_ TO OUT_ (FILTER DELAY)
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
V
BAT
DELAY DIFFERENCE BETWEEN
CHANNELS vs. TEMPERATURE
V
BAT
UNDERVOLTAGE THRESHOLD
FALLING, ERR GOES LOW
vs. TEMPERATURE
vs. TEMPERATURE
TEMPERATURE (°C)
TEMPERATURE (°C)
V
TEMPERATURE (°C)
BAT
RISING, ERR GOES HIGH
7