MAX791MJE Maxim Integrated, MAX791MJE Datasheet - Page 3
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MAX791MJE
Manufacturer Part Number
MAX791MJE
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
MAX791r
Datasheet
1.MAX791ESE-T.pdf
(19 pages)
Specifications of MAX791MJE
Number Of Voltages Monitored
1
Monitored Voltage
4.65 V
Undervoltage Threshold
4.5 V
Overvoltage Threshold
4.75 V
Output Type
Active Low, Open Drain, Push-Pull
Manual Reset
Resettable
Watchdog
Watchdog
Battery Backup Switching
Backup
Power-up Reset Delay (typ)
280 ms
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
Package / Case
CDIP
Chip Enable Signals
Yes
Maximum Power Dissipation
800 mW
Minimum Operating Temperature
- 55 C
Power Fail Detection
Yes
Supply Current (typ)
150 uA
Supply Voltage - Min
0 V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
ELECTRICAL CHARACTERISTICS (continued)
(V
RESET, LOW-LINE, AND WATCHDOG TIMER
BATT ON Output
Low Voltage
BATT ON Output
Short-Circuit Current
–
R
–
R
–
L
Threshold Voltage
V
V
–
R
Watchdog Timeout Period
Minimum Watchdog
Timeout Period
Minimum Watchdog Input
Pulse Width
–
W
–
W
–
R
–
R
Short-Circuit Current
–
L
–
L
Short-Circuit Current
–
W
–
W
–
W
–
W
Short-Circuit Current
—
—
—
—
—
—
—
—
CC
—
—
—
—
—
—
O
O
O
E
E
CC
CC
E
E
E
—
—
—
—
—
—
—
—
D
D
D
D
D
D
—
—
—
—
—
—
S
S
S
S
S
W
W
W
—
—
—
—
—
P
P
O
O
P
P
— —
—
—
— —
— —
—
—
= 4.75V to 5.5V, VBATT = 2.8V, T
E
E
-to-
-to-
E
E
E
–
–
—
—
—
—
—
O
O
O
O
—
L
—
L
—
L
T
T
T
–
–
T
T
–
–
–
–
–
–
–
—
—
—
Output Voltage
Output Short-Circuit Current
I
I
I
-to-
N
N
N
—
–
R
–
L
Pulse Width
—
—
Output Voltage
Output
Threshold Voltage
Threshold Hysteresis
—
Active Timeout Period
Output Voltage
Output
—
E
E
E
O
–
–
–
E
—
—
PARAMETER
-to-
–
W
S
—
W
Output Voltage
Output
—
— —
E
—
D
L
—
—
T
–
—
–
R
—
I
O
N
–
E
—
Delay
—
E
S
–
Delay
—
E
—
Delay
T
–
_______________________________________________________________________________________
Microprocessor Supervisory Circuit
I
I
Sink current
Source current
Power down
Power down
Power up
SWT connected to V
4.7nF capacitor connected from SWT to GND
V
MAX791C, I
MAX791E/M, I
I
I
Output source current
I
I
Output source current
I
I
Output source current
I
I
Output source current
A
SINK
SINK
SINK
SOURCE
SINK
SOURCE
SINK
SOURCE
SINK
SOURCE
IL
= T
= 0.8V, V
= 3.2mA
= 25mA
= 3.2mA, V
= 3.2mA, V
= 3.2mA
= 3.2mA
MIN
= 1.6mA, V
= 1µA, V
= 500µA, V
= 1mA
to T
SINK
IH
MAX
SINK
= 0.75 x V
= 50µA, V
CC
CC
CONDITIONS
, unless otherwise noted.)
CC
= 50µA, V
= 4.25V
CC
= 4.25V
CC
OUT
= 5V
= 5V
= 5V
CC
CC
CC
= 1.0V, V
= 1.2V, V
CC
CC
falling
falling
4.50
MIN
140
100
1.0
3.5
3.5
3.5
3.5
1
0.004
0.004
TYP
4.65
150
100
200
0.1
0.7
1.6
0.1
60
15
15
80
10
70
15
1
7
3
7
MAX
4.75
2.25
100
280
100
0.4
1.5
0.3
0.3
0.4
0.4
0.4
0.4
20
10
20
UNITS
mA
mA
mA
mA
mV
mV
ms
ms
ms
µA
µA
µs
µs
ns
ns
ns
V
V
s
V
V
V
V
3