MAX791CUE-T Maxim Integrated, MAX791CUE-T Datasheet - Page 5

• Manufacturer Part Number: MAX791CUE-T
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: MAX791r

Specifications of MAX791CUE-T

• 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: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-16
• Chip Enable Signals: Yes
• Maximum Power Dissipation: 533 mW
• Minimum Operating Temperature: 0 C
• Power Fail Detection: Yes
• Supply Current (typ): 150 uA
• Supply Voltage - Min: 0 V

(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