MAX791CPE+ Maxim Integrated Products, MAX791CPE+ Datasheet - Page 3
![IC MPU SUPERVISORY CIRCUIT 16DIP](/photos/6/57/65728/175-16-dip_sml.jpg)
MAX791CPE+
Manufacturer Part Number
MAX791CPE+
Description
IC MPU SUPERVISORY CIRCUIT 16DIP
Manufacturer
Maxim Integrated Products
Type
Battery Backup Circuitr
Datasheet
1.MAX791CSE.pdf
(19 pages)
Specifications of MAX791CPE+
Number Of Voltages Monitored
1
Output
Push-Pull, Totem Pole
Reset
Active Low
Reset Timeout
140 ms Minimum
Voltage - Threshold
4.65V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Monitored Voltage
4.65 V
Undervoltage Threshold
4.5 V
Overvoltage Threshold
4.75 V
Manual Reset
Resettable
Watchdog
Yes
Battery Backup Switching
Yes
Power-up Reset Delay (typ)
280 ms
Supply Voltage (max)
5.5 V
Supply Voltage (min)
0 V
Supply Current (typ)
150 uA
Maximum Power Dissipation
842 mW
Mounting Style
Through Hole
Maximum Operating Temperature
+ 70 C
Chip Enable Signals
Yes
Minimum Operating Temperature
0 C
Output Type
Active Low or Open Drain or Push-Pull
Power Fail Detection
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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