Datasheet

MAX6365–MAX6368
SOT23, Low-Power µP Supervisory Circuits
with Battery Backup and Chip-Enable Gating
6 _______________________________________________________________________________________
1.234
1.235
1.236
MAX6368
RESET IN THRESHOLD
vs. TEMPERATURE
MAX6365/8 -10
TEMPERATURE (
°
C)
V
RTH
(V)
-40 20 40-20 0 60 80
1.0
1.9
1.6
1.3
2.8
2.5
2.2
MAX6368
RESET IN TO RESET PROPAGATION DELAY
vs. TEMPERATURE
MAX6365/8-11
TEMPERATURE (
°
C)
PROPAGATION DELAY (µs)
-40 20 40-20 0 60 80
V
OD
= 50mV
0
1
3
2
4
5
MAX6365/8-12
C
LOAD
(pF)
PROPAGATION DELAY (ns)
0 10050 150 200
CHIP-ENABLE PROPAGATION DELAY
vs. CE OUT LOAD CAPACITANCE
V
CE IN
= 0V TO V
CC
DRIVER SOURCE
IMPEDANCE = 50Ω
V
CC
= 3V
V
CC
= 5V
0
5
15
10
20
25
-40 0-20 20 40 60 80
MAX6365/8-13
TEMPERATURE (
°
C)
CE IN TO CE OUT ON-RESISTANCE (Ω)
CE IN TO CE OUT ON-RESISTANCE
vs. TEMPERATURE
V
CC
= 3.0V
V
CC
= 5.0V
V
CE IN
= V
CC
/2
V
BATT
= 0V
1.0
1.3
1.2
1.1
1.5
1.4
1.9
1.8
1.7
1.6
2.0
-40 -20 0 20 40 60 80
MAX6365/8-14
TEMPERATURE (
°
C)
WATCHDOG TIMEOUT PERIOD (s)
MAX6366
WATCHDOG TIMEOUT PERIOD
vs. TEMPERATURE
V
CC
= 5.0V
V
BATT
= 0V
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)