Datasheet

MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
4
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
0
2
1
5
4
3
6
7
8
9
-40 -10 5-25 203550658095110125
SUPPLY CURRENT vs. TEMPERATURE
(NO LOAD)
MAX6381/90 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
V
CC
= +1.8V
V
CC
= +2.5V
V
CC
= +3.6V
V
CC
= +5.5V
25
29
27
35
33
31
37
39
41
43
-40 -10 5-25 203550658095110125
POWER-DOWN RESET DELAY
vs. TEMPERATURE
MAX6381/90 toc02
TEMPERATURE (°C)
POWER-DOWN RESET DELAY (µs)
V
CC
= +1.8V
V
CC
= +3V
0.94
0.98
0.96
1.02
1.00
1.06
1.04
1.08
-40 -10 5 20-25 3550658095110125
NORMALIZED POWER-UP RESET TIMEOUT
vs. TEMPERATURE
MAX6381/90 toc03
TEMPERATURE (°C)
NORMALIZED RESET TIMEOUT PERIOD
0.990
0.985
1.015
0.995
0.990
1.000
1.005
1.010
1.020
-40 -10 5 20-25 35 50 9580 11065 125
MAX6381/90 toc04
TEMPERATURE (°C)
NORMALIZED RESET THRESHOLD
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE
0
0.4
0.2
0.8
0.6
1.0
1.2
063912
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT
MAX6381/90 toc05
I
SINK
(mA)
V
OL
(V)
V
CC
= +3.0V
V
CC
= +4.5V
0
1.0
0.5
2.0
1.5
2.5
3.0
0 500 750250 1000 1250 1500
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT
MAX6381/90 toc06
I
SOURCE
(µA)
V
OH
(V)
V
CC
= +2.5V
V
CC
= +1.8V
450
0
1 100010010
MAXIMUM TRANSIENT DURATION
vs. RESET COMPARATOR OVERDRIVE
150
50
350
250
500
200
100
400
300
MAX6381/90 toc07
RESET COMPARATOR OVERDRIVE, V
TH
- V
CC
(mV)
MAXIMUM TRANSIENT DURATION (µs)
RESET ASSERTED
ABOVE THIS LINE
3.5
3.9
3.7
4.5
4.3
4.1
4.7
4.9
5.3
5.1
5.5
-40 -10 5-25 203550658095110125
RESET IN TO RESET DELAY
vs. TEMPERATURE
MAX6381/90 toc08
TEMPERATURE (°C)
RESET IN DELAY (µs)