SOT23, Low-Power µP Supervisory Circuits
with Battery Backup and Chip-Enable Gating
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.4V to +5.5V, V
BATT
= +3.0V,
CE
IN = V
CC
, reset not asserted, T
A
= -40°C to +85°C. Typical values are at T
A
= +25°C,
unless otherwise noted.) (Note 1)
PARAMETER
Reset Active Timeout Period
SYMBOL
t
RP
Reset asserted,
V
BATT
= 0
Reset not asserted
(MAX636_L only)
Reset not asserted
Reset not asserted,
V
BATT
= 0
(MAX636_H only)
(Note 3)
I
SINK
= 1.6mA,
V
CC
> 2.1V
I
SINK
= 100µA,
V
CC
> 1.2V
I
SOURCE
= 500µA,
V
CC
> V
TH(MAX)
I
SINK
= 1.6mA,
V
CC
> V
TH (MAX)
I
SOURCE
= 1mA,
V
CC
> 1.8V
I
SOURCE
= 200µA,
V
CC
> 1.2V
0.7
✕
V
CC
0.8
✕
V
CC
1
0.3
✕
V
CC
0.7
✕
V
CC
20
1
V
CC
= 3.3V
V
CC
= 3.3V
t
WD
t
WDI
V
IL
WDI Input Voltage
V
IH
WDI Input Current
BATT ON
(MAX6367 only)
Output Voltage
Output Short-Circuit Current
V
OL
I
SINK
= 3.2mA, V
BATT
= 2.1V
Sink current, V
CC
= 5V
Source current, V
BATT
> 2V
10
60
30
100
0.4
V
mA
µA
0.7
✕
V
CC
-1.0
1.0
µA
1.00
100
0.3
✕
V
CC
100
120
1.65
2.25
kΩ
µs
ns
ns
s
ns
µA
0.8
✕
V
CC
0.3
V
CONDITIONS
MIN
150
TYP
MAX
280
0.3
0.4
V
UNITS
ms
MAX6365–MAX6368
V
OL
RESET
Output Voltage
V
OH
V
OL
RESET Output Voltage
V
OH
RESET
Output Leakage Current
MANUAL RESET
(MAX6365 only)
I
LKG
MAX636_P and MAX636_H only
V
IL
MR
Input Voltage
V
IH
Pullup Resistance
Minimum Pulse Width
Glitch Immunity
MR
to Reset Delay
WATCHDOG
(MAX6366 only)
Watchdog Timeout Period
Minimum WDI Input Pulse Width
V
V
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
