MAX821 Maxim, MAX821 Datasheet - Page 4

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

4-Pin µP Voltage Monitors with Pin-Selectable
Power-On Reset Timeout Delay
(T
4
______________________________________________________________Pin Description
____________________________Typical Operating Characteristics (continued)
MAX821
A
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
1
2
–
3
4
PIN
MAX822
1.10
1.05
1.00
0.95
0.90
45
40
35
30
25
20
15
10
5
0
1
–
2
3
4
MAX82_R/S/T POWER-DOWN RESET DELAY
-40
-40
-20
-20
CURRENT vs. TEMPERATURE
NORMALIZED SUPPLY
RESET
RESET
NAME
vs. TEMPERATURE
0
TEMPERATURE (°C)
GND
0
TEMPERATURE (°C)
SRT
V
V
CC
V
CC
CC
20
20
FALLING AT 10mV/ s
FALLING AT 1mV/ s
40
40
Ground
Active-Low Reset Output. RESET is low while V
low for the reset timeout period after the reset condition is terminated. The reset timeout
period is determined by the SRT input.
Active-High Reset Output. RESET is high while V
high for the reset timeout period after the reset condition is terminated. The reset timeout
period is determined by the SRT input.
Set Reset Timeout Input. Connect to GND for 1ms (max) delay; connect to V
(min) delay; leave unconnected for 100ms (min) delay.
Supply Voltage
60
60
80
80
100
100
FUNCTION
60
50
40
30
20
10
1.003
1.002
1.001
1.000
0.999
0.998
0.997
0
MAX82_L/M POWER-DOWN RESET DELAY
-40
CC
-40
CC
-20
is below the reset threshold. It remains
NORMALIZED RESET THRESHOLD
is below the reset threshold. It remains
-20
V
CC
V
vs. TEMPERATURE
CC
0
TEMPERATURE (°C)
FALLING AT 10mV/ s
FALLING AT 1mV/ s
vs. TEMPERATURE
0
TEMPERATURE (°C)
20
20
40
40
60
60
80
CC
80
100
for 20ms
100