MAX791CSE+ Maxim Integrated Products, MAX791CSE+ Datasheet - Page 3

• Manufacturer Part Number: MAX791CSE+
• Description: IC MPU SUPERVISOR CIRCUIT 16SOIC
• Manufacturer: Maxim Integrated Products
• Type: Battery Backup Circuitr

Specifications of MAX791CSE+

• 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: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• 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: 696 mW
• Mounting Style: SMD/SMT
• 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