MAX6821ZUK-T Maxim Integrated, MAX6821ZUK-T Datasheet - Page 4
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MAX6821ZUK-T
Manufacturer Part Number
MAX6821ZUK-T
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
MAX6821, MAX6822, MAX6823, MAX6824, MAX6825r
Datasheet
1.MAX6821ZUK-T.pdf
(9 pages)
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