Datasheet

MAX6365–MAX6368
SOT23, Low-Power µP Supervisory Circuits
with Battery Backup and Chip-Enable Gating
_______________________________________________________________________________________ 5
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
0
0.4
0.2
0.8
0.6
1.2
1.0
1.4
-40 0 20-20 40 60 80
V
CC
TO OUT ON-RESISTANCE
vs. TEMPERATURE
MAX6365/8-04
TEMPERATURE (°C)
V
CC
TO OUT ON-RESISTANCE (Ω)
V
CC
= 3.0V
I
OUT
= 65mA
V
CC
= 4.5V
I
OUT
= 150mA
V
CC
= 2.3V
I
OUT
= 25mA
190
195
205
200
210
RESET TIMEOUT PERIOD
vs. TEMPERATURE
MAX6365/8-05
TEMPERATURE (
°
C)
RESET TIMEOUT PERIOD (ms)
-40 20 40-20 0 60 80
0
30
15
75
60
45
135
120
105
90
MAX6365/8-06
TEMPERATURE (°C)
PROPAGATION DELAY (µs)
-40 20 40-20 0 60 80
V
CC
TO RESET PROPAGATION DELAY
vs. TEMPERATURE
V
CC
FALLING
0.25V/ms
1V/ms
10V/ms
2.0
3.0
2.5
5.0
4.5
4.0
3.5
RESET THRESHOLD
vs. TEMPERATURE
MAX6365/8-07
TEMPERATURE (
°
C)
THRESHOLD (V)
-40 20 40-20 0 60 80
MAX636_ 46 (V
TH
= 4.63V)
MAX636_ 26 (V
TH
= 2.63V)
110010 1000 10,000
MAXIMUM TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE
MAX6365/8-08
RESET THRESHOLD OVERDRIVE V
TH
- V
CC
(mV)
MAXIMUM TRANSIENT DURATION (µs)
400
300
350
250
200
0
50
150
100
MAX636_ 26
(V
TH
= 2.63V)
MAX636_ 46
(V
TH
= 4.63V)
RESET OCCURS
ABOVE CURVE
0
3
2
1
5
4
9
8
7
6
10
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
BATTERY SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX6365/8-09
V
CC
(V)
BATTERY SUPPLY CURRENT (µA)
V
TH
= 2.93V
V
BATT
= 2.8V
V
BATT
= 2.5V
V
BATT
= 2.3V