PWM Output Temperature Sensors
in SC70 Packages
Typical Operating Characteristics
(V CC = 3.3V, T A = +25 ° C, unless otherwise noted.)
NORMALIZED OUTPUT FREQUENCY
2.00
1.75
OUTPUT FREQUENCY vs. TEMPERATURE
1.010
1.005
vs. SUPPLY VOLTAGE
600
500
t 1 AND t 2 TIMES vs. TEMPERATURE
T A = +125 ° C
t 2
1.50
1.000
T A = +25 ° C
400
1.25
1.00
0.995
0.990
T A = -40 ° C
300
200
t 1
-50
-25
0
25
50
75
100
125
2.0
2.5
3.0
3.5
4.0
4.5
5.0
-50
-25
0
25
50
75
100
125
TEMPERATURE ( ° C)
OUTPUT ACCURACY vs. TEMPERATURE
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. TEMPERATURE
TEMPERATURE ( ° C)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
4
2
V CC = 3.3V
150
120
100
90
0
90
60
V CC = 5V
V CC = 3.3V
80
70
-2
-4
30
0
60
50
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
2.0
2.5
3.0
3.5
4.0
4.5
5.0
1.0
0.5
0
-0.5
-1.0
TEMPERATURE ( ° C)
POWER-SUPPLY REJECTION
vs. TEMPERATURE
1.0
0.5
0
-0.5
-1.0
TEMPERATURE ( ° C)
POWER-SUPPLY REJECTION
vs. FREQUENCY
V AC = 100mV P-P
150
120
90
60
30
0
SUPPLY VOLTAGE (V)
OUTPUT RISE AND FALL TIMES
vs. CAPACITIVE LOAD
MAX6673 RISE TIME
FALL TIME
-50
-25
0
25
50
75
100
125
0.01
0.10
1
10
100
1k
10k
0.01
0.10
1
10
TEMPERATURE ( ° C)
FREQUENCY (Hz)
CAPACITIVE LOAD (nF)
_______________________________________________________________________________________
3
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