Datasheet

MAX6301–MAX6304
+5V, Low-Power µP Supervisory Circuits
with Adjustable Reset/Watchdog
4 _______________________________________________________________________________________
____________________________Typical Operating Characteristics (continued)
(C
SWT
= C
SRT
= 1500pF, T
A
= +25°C, unless otherwise noted.)
4.25
2.50
-40 40
SUPPLY CURRENT
vs. TEMPERATURE
3.25
3.00
2.75
4.00
MAX6301-4 toc07
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
080-60 -20 6020 100
3.75
3.50
4.50
5.00
4.75
V
CC
= 5.0V
V
CC
= 2.0V
RESET DEASSERTED
NO LOAD
1.220
-40 40
RESET IN THRESHOLD VOLTAGE
vs. TEMPERATURE
1.218
MAX6301-4 toc08
TEMPERATURE (°C)
RESET REFERENCE VOLTAGE (V)
080-60 -20 6020 100
1.216
1.214
1.222
1.226
1.224
-40 40
V
CC
TO RESET DELAY
vs. TEMPERATURE (V
CC
FALLING)
68
MAX6301-4 toc09
TEMPERATURE (°C)
PROPAGATION DELAY (µs)
080-60 -20 6020 100
64
60
56
52
72
76
V
CC
FALLING AT 1mV/µs
RESET AND WATCHDOG
TIMEOUT vs. SUPPLY VOLTAGE
4.12
MAX6301-4 toc10
V
CC
(V)
t
RP
/t
WP
(ms)
23 546
4.08
4.04
4.00
3.96
4.16
3.6
2.6
6.02.0 4.0
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2.8
3.4
MAX6301-4 toc04
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
3.0 5.01.5 2.5 4.53.5 5.5
3.2
3.0
3.8
4.2
4.0
RESET DEASSERTED
NO LOAD
4.05
3.80
-40 40
RESET AND NORMAL-MODE
WATCHDOG TIMEOUT PERIOD
vs. TEMPERATURE
3.85
4.00
MAX6301-4 toc05
TEMPERATURE (°C)
t
RP
/t
WD
(ms)
080-60 -20 6020 100
3.95
3.90
4.10
4.20
4.15
V
CC
= 5.0V
0
0 200 400 600 1000800
40
MAX6301-4 toc06
RESET THRESHOLD OVERDRIVE (mV)
TRANSIENT DURATION (µs)
80
120
30
70
110
20
60
100
10
50
90
RESET OCCURS
ABOVE THE CURVE
SEE THE NEGATIVE-GOING
V
CC
TRANSIENTS SECTION
V
RST
= 4.60V
MAXIMUM TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE (V
RST
)