MAX791EJE Maxim Integrated, MAX791EJE Datasheet - Page 3

• Manufacturer Part Number: MAX791EJE
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: MAX791r

Specifications of MAX791EJE

• 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: + 85 C
• Mounting Style: Through Hole
• Package / Case: CDIP-16
• Chip Enable Signals: Yes
• Maximum Power Dissipation: 800 mW
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: Yes
• Supply Current (typ): 150 uA
• Supply Voltage - Min: 0 V

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