+5V, Low-Power µP Supervisory Circuits
with Adjustable Reset/Watchdog
MAX6301–MAX6304
____________________________Typical Operating Characteristics (continued)
(C
SWT
= C
SRT
= 1500pF, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT vs.
SUPPLY VOLTAGE
6301-4 TOC-04
RESET AND NORMAL-MODE
WATCHDOG TIMEOUT PERIOD
vs. TEMPERATURE
6301-4 TOC-05
MAXIMUM TRANSIENT DURATION vs.
RESET THRESHOLD OVERDRIVE (V
RST
)
120
110
100
90
80
70
60
50
40
30
20
10
0
V
RST
= 4.60V
0
200
400
600
800
1000
RESET OCCURS
ABOVE THE CURVE
SEE
NEGATIVE-GOING V
CC
TRANSIENTS
SECTION
6301-4 TOC-06
4.2
4.0
SUPPLY CURRENT (µA)
3.8
3.6
3.4
3.2
3.0
2.8
2.6
RESET DEASSERTED
NO LOAD
4.20
4.15
4.10
t
RP
/t
WD
(ms)
4.05
4.00
3.95
3.90
3.85
3.80
V
CC
= 5.0V
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
SUPPLY VOLTAGE (V)
-60 -40 -20
0
20
40
60
80 100
TEMPERATURE (°C)
TRANSIENT DURATION (µs)
RESET THRESHOLD OVERDRIVE (mV)
SUPPLY CURRENT
vs. TEMPERATURE
6301-4 TOC-07
RESET IN THRESHOLD VOLTAGE
vs. TEMPERATURE
RESET REFERENCE VOLTAGE (V)
6301-4 TOC-08
5.00
4.75
SUPPLY CURRENT (µA)
4.50
4.25
4.00
3.75
3.50
3.25
3.00
2.75
2.50
-60 -40 -20
0
20
40
60
V
CC
= 2.0V
V
CC
= 5.0V
RESET DEASSERTED
NO LOAD
1.226
1.224
1.222
1.220
1.218
1.216
1.214
-60 -40 -20
80 100
0
20
40
60
80 100
TEMPERATURE (°C)
TEMPERATURE (°C)
V
CC
TO RESET DELAY
vs. TEMPERATURE (V
CC
FALLING)
V
CC
FALLING AT 1mV/µs
PROPAGATION DELAY (µs)
72
68
64
60
56
52
-60
4.00
6301-4 TOC-09
RESET AND WATCHDOG
TIMEOUT vs. V
CC
6301-4 TOC-10
76
4.16
4.12
t
RP
/t
WP
(ms)
4.08
4.04
3.96
-40 -20
0
20
40
60
80 100
2
3
4
5
6
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
4
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
