MAX791CSE+ Maxim Integrated Products, MAX791CSE+ Datasheet - Page 5

• 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

(T
A
4.80
4.75
4.70
4.65
4.60
4.55
4.50
4.45
4.40
4.35
4.30
= +25°C, unless otherwise noted.)
54
50
46
42
38
58
15
10
20
5
V
-60
-60
-60
CC
SUPPLY CURRENT vs. TEMPERATURE
VBATT-to-V
VBATT = 2.0V
VBATT = 4.5V
-30
VBATT = 2.8V
(NORMAL OPERATING MODE)
-30
-30
RESET THRESHOLD
vs. TEMPERATURE
vs. TEMPERATURE
0
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
_______________________________________________________________________________________
OUT
30
30
30
ON-RESISTANCE
60
60
60
V
VBATT = 2.8V
PFI, CE IN = 0V
CC
VBATT = 0V,
POWER DOWN
90
90
90
= +5V
V
CC
Microprocessor Supervisory Circuit
120
120
120
= 0V
150
150
150
1.1
1.0
0.9
0.8
0.7
0.6
500
400
300
200
100
1.2
600
1.5
1.0
0.5
2.0
BATTERY-SUPPLY CURRENT vs. TEMPERATURE
0
0
-60
-60
-60
-30
-30
V
-30
RESET OUTPUT RESISTANCE
(BATTERY-BACKUP MODE)
CC
-to-V
vs. TEMPERATURE
vs. TEMPERATURE
0
0
TEMPERATURE (°C)
0
TEMPERATURE (°C)
TEMPERATURE (°C)
OUT
30
30
V
SINKING CURRENT
30
CC
ON-RESISTANCE
V
SOURCING CURRENT
CC
= 0V, VBATT = 2.8V
Typical Operating Characteristics
= +5V, VBATT = 2.8V
60
60
60
V
VBATT = 0V
90
90
90
V
VBATT = 2.8V
NO LOAD
CC
CC
= +5V,
= 0V
120
120
120
150
150
150
1.50
1.25
1.00
0.75
0.50
0.25
100
120
220
210
200
190
180
170
230
80
60
40
0
-60
-60
-60
V
VBATT = 2.8V
CC
-30
CHIP-ENABLE ON-RESISTANCE
-30
-30
= 0V TO 5V STEP
0
vs. TEMPERATURE
vs. TEMPERATURE
vs. TEMPERATURE
0
0
TEMPERATURE (°C)
PFI THRESHOLD
TEMPERATURE (°C)
TEMPERATURE (°C)
RESET DELAY
30
30
30
60
60
60
90
V
VBATT = 0V,
NO LOAD ON PFO
CC
V
VBATT = 2.8V
CE IN = V
= +5V,
90
90
CC
120
= +4.75V
120
120
150 180
CC
/2
150
150
5