MAX6821ZUK-T Maxim Integrated, MAX6821ZUK-T Datasheet - Page 4

• Manufacturer Part Number: MAX6821ZUK-T
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: MAX6821, MAX6822, MAX6823, MAX6824, MAX6825r

Specifications of MAX6821ZUK-T

• Number Of Voltages Monitored: 1
• Monitored Voltage: 1.8 V, 2.5 V, 3 V, 3.3 V, 5 V
• Undervoltage Threshold: 2.24 V
• Overvoltage Threshold: 2.4 V
• Output Type: Active High, Push-Pull
• Manual Reset: Resettable
• Watchdog: Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 320 ms
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-23
• Chip Enable Signals: No
• Maximum Power Dissipation: 571 mW
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: No
• Supply Current (typ): 10 uA
• Supply Voltage - Min: 1 V

Low-Voltage SOT23 µP Supervisors with
Manual Reset and Watchdog Timer
(T
4
A
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
13
12
11
10
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
9
8
7
6
5
4
3
-40
-40
V
CC
V
V
-20
-20
CC
CC
WATCHDOG TIMEOUT PERIOD
= +5V, L VERSION
= +3.3V, S VERSION
= +1.8V, V VERSION
0
0
vs. TEMPERATURE
SUPPLY CURRENT
vs. TEMPERATURE
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
40
40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
60
60
0
V
CC
80 100 120
80 100 120
= +2.9V
1
VOLTAGE OUTPUT LOW
vs. SINK CURRENT
2
I
SINK
3
(mA)
4
250
240
230
220
210
200
190
180
170
160
150
1.06
1.04
1.02
1.00
0.98
0.96
0.94
5
-40
-40
-20
NORMALIZED RESET THRESHOLD
-20
6
DELAY vs. TEMPERATURE
RESET TIMEOUT PERIOD
0
0
7
vs. TEMPERATURE
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
40
40
2.90
2.88
2.86
2.84
2.82
2.80
2.78
2.76
2.74
2.92
60
60
Typical Operating Characteristics
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
80 100 120
80 100 120
VOLTAGE OUTPUT HIGH
vs. SOURCE CURRENT
I
SOURCE
(mA)
120
100
80
60
40
20
35
30
25
20
15
10
0
5
0
-40
0
MAXIMUM V
RESET THRESHOLD OVERDRIVE (mV), V
V
V
vs. RESET THRESHOLD OVERDRIVE
CC
CC
-20
20 40
V
FALLING, V
= +2.9V
CC
RESET OCCURS
ABOVE CURVE
TO RESET OUTPUT DELAY
0
vs. TEMPERATURE
60
TEMPERATURE (°C)
20
CC
CC
80
= V
TRANSIENT DURATION
40
100 120 140 160 180 200
TH
- 100mV
60
80 100 120
TH
- V
CC