3-Pin, Low-Power
碌P Reset Circuits
Typical Operating Characteristics
(Reset not asserted, T
A
= +25擄C, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERATURE
MAX6800/01/02 toc01
MAX6800/MAX6801/MAX6802
NORMALIZED RESET TIMEOUT PERIOD
vs. TEMPERATURE
MAX6800/01/02 toc02
RESET (V
OL
)
vs. SUPPLY VOLTAGE
+125擄C
OUTPUT VOLTAGE LOW (mV)
60
+85擄C
40
+25擄C
-40擄C
20
V
TH
= 2.93V
I
SINK
= 500碌A(chǔ)
RESET ASSERTED
MAX6801/MAX6802
MAX6800/01/02 toc03
6.5
6.0
5.5
V
CC
= +5.0V
I
CC
(碌A(chǔ))
5.0
4.5
4.0
3.5
3.0
-50
-25
0
25
50
75
100
V
CC
= +3.3V
1.050
NORMALIZED RESET TIMEOUT PERIOD
1.040
1.030
1.020
1.010
1.000
0.990
0.980
0.970
0.960
0.950
80
0
-50
-25
0
25
50
75
100
125
1.0
1.5
2.0
V
CC
(V)
2.5
3.0
TEMPERATURE (擄C)
125
TEMPERATURE (擄C)
RESET (V
OH
)
vs. SUPPLY VOLTAGE
MAX6800/01/02 toc04
MAXIMUM TRANSIENT DURATION
vs. RESET COMPARATOR OVERDRIVE
MAX6800/01/02 toc05
V
CC
FALLING PROPAGATION DELAY
vs. TEMPERATURE
90
PROPAGATION DELAY (碌s)
80
70
60
50
40
30
20
10
0
V
CC
= FALLING AT 10V/ms
V
CC
= FALLING AT 1V/ms
MAX6800/01/02 toc06
100
OUTPUT VOLTAGE HIGH (V
CC
- V
OH
) (mV)
V
TH
= 2.93V
I
SOURCE
= 100碌A(chǔ)
RESET ASSERTED
(MAX6800)
600
MAXIMUM TRANSIENT DURATION (碌s)
500
400
300
200
100
0
RESET DOES
NOT OCCUR
RESET OCCURS
100
75
50
+125擄C
+85擄C
+25擄C
25
-40擄C
0
1.0
1.5
2.0
V
CC
(V)
2.5
3.0
0.1
100
1000
RESET COMPARATOR OVERDRIVE (mV)
1
10
-50
-25
0
25
50
75
100
125
TEMPERATURE (擄C)
Pin Description
PIN
MAX6800
1
鈥?/div>
MAX6801/
MAX6802
1
2
NAME
GND
RESET
Ground
Active-Low Reset Output.
RESET
is asserted while V
CC
is below the reset
threshold and remains asserted for a reset timeout period (t
RP
) after V
CC
rises above the reset threshold.
RESET
on the MAX6801 is push/pull.
RESET
on the MAX6802 is open-drain.
Active-High Reset Output. RESET is asserted while V
CC
is below the reset
threshold and remains asserted for a reset timeout period (t
RP
) after V
CC
rises above the reset threshold. RESET on the MAX6800 is push/pull.
Supply Voltage Input
FUNCTION
2
3
鈥?/div>
3
RESET
V
CC
_______________________________________________________________________________________
3
1
2
3
4
5
6
7
