MAX791EJE Maxim Integrated, MAX791EJE Datasheet - Page 6

• 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

Microprocessor Supervisory Circuit
(T
6
A
= +25°C, unless otherwise noted.)
20
16
12
_______________________________________________________________________________________
8
4
0
0
vs. INPUT SUPPLY VOLTAGE
1
1000
100
BATTERY CURRENT
10
1
2
1
V
CC
(V)
3
OUTPUT CURRENT
VBATT = 2.8V,
I
V
OUT
10
CC
= 0A
I
to V
OUT
4
(mA)
OUT
5
vs.
100
SLOPE = 0.8Ω
V
VBATT = 0V
CC
= 4.5V
250
200
150
100
Typical Operating Characteristics (continued)
50
0
1000
0
10
20
vs. TIMING CAPACITOR
WATCHDOG TIMEOUT
TIMING CAPACITOR (nF)
30
40
50
60
1000
70 80 90 100
V
VBATT = 2.8V
100
CC
10
1
= +5V
1
VBATT to V
OUTPUT CURRENT
20
16
12
I
8
4
0
OUT
10
0
(mA)
CHIP-ENABLE PROPAGATION DELAY
OUT
vs. CE OUT LOAD CAPACITANCE
50
vs.
V
VBATT = 4.5V
SLOPE = 8Ω
CC
= 0V
100
C
LOAD
100
150
V
CE IN = 0V TO 5V
DRIVER SOURCE
IMPEDANCE = 50Ω
(pF)
CC
= +5V
200
250
300