MAX821 Maxim, MAX821 Datasheet - Page 3

• Manufacturer Part Number: MAX821
• Description: 4-Pin P Voltage Monitors with Pin-Selectable Power-On Reset Timeout Delay
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
(T
Note 1: RESET output for MAX821; RESET output for MAX822.
Note 2: During reset active timeout period only.
Note 3: Guaranteed by design.
__________________________________________Typical Operating Characteristics
SRT Input Capacitance
(Note 3) (see Setting
the Reset Timeout Delay
section)
RESET Output Voltage
(MAX821)
RESET Output Voltage
(MAX822)
CC
A
= +25°C, unless otherwise noted.)
1.0
0.9
0.8
0.7
0.6
= full range, T
4-Pin µP Voltage Monitors with Pin-Selectable
-40
PARAMETER
SRT = GND
-20
RESET TIMEOUT PERIOD
vs. TEMPERATURE
0
TEMPERATURE (°C)
A
_______________________________________________________________________________________
= -40°C to +125°C, unless otherwise noted. Typical values are at T
20
40
60
SYMBOL
V
V
V
V
80
OH
OH
OL
OL
100
Internal
MAX821L/M/P only, I
V
MAX821R/S/T/U only, I
V
I
MAX821L/M/P only, I
V
MAX821R/S/T/U only, I
V
MAX822L/M only, I
V
MAX822R/S/T only, I
V
I
SINK
SOURCE
CC
CC
CC
CC
CC
CC
Power-On Reset Timeout Delay
= V
= V
= V
= V
= 50µA
36
35
34
33
32
31
30
V
V
TH(MAX)
TH(MAX)
TH(MAX)
TH(MIN)
TH(MIN)
TH(MAX)
-40
= 150µA, 1.4V
SRT = V
-20
RESET TIMEOUT PERIOD
CC
CONDITIONS
vs. TEMPERATURE
0
TEMPERATURE (°C)
SINK
SINK
SINK
SOURCE
SINK
SOURCE
20
= 3.2mA,
= 1.2mA,
= 3.2mA,
T
V
T
V
V
A
A
CC
CC
CC
40
= 1.2mA,
= -40°C to +85°C,
= 0°C to +70°C,
= 800µA,
= 500µA,
60
1V
1.2V
V
TH(MIN)
80
100
A
= +25°C.)
180
175
170
165
160
155
150
V
0.8V
0.8V
CC
MIN
-40
SRT = UNCONNECTED
-1.5
CC
CC
-20
RESET TIMEOUT PERIOD
TYP
vs. TEMPERATURE
0
TEMPERATURE (°C)
20
MAX
40
0.4
0.3
0.3
0.3
0.4
0.3
20
60
80
UNITS
pF
V
V
100
3