ADM812 Analog Devices, ADM812 Datasheet - Page 6
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ADM812
Manufacturer Part Number
ADM812
Description
Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic High RESET Output
Manufacturer
Analog Devices
Datasheet
1.ADM811.pdf
(12 pages)
Specifications of ADM812
# Of Monitored Voltages
1
Backup-battery Switch
No
Manual Reset Capability
Yes
Package
SOT
Reset Threshold Summary
6 Options--2.32 to 4.63V
Reset Output-stage
Active-High/Push-Pull
Min Reset Timeout (ms)
140
Watchdog Timer
No
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ADM811/ADM812
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 5. Power-Down RESET Delay vs. Temperature (ADM81xR/S/T/Z)
1000
900
800
700
600
500
400
300
200
100
299
294
279
274
269
264
259
254
249
244
12
10
Figure 4. Supply Current vs. Temperature (ADM81xR/S/T/Z)
8
6
4
2
0
0
–40
–40
–40
V
Figure 6. Power-Up RESET Timeout vs. Temperature
OD
–20
–20
–20
= 125mV
I
DD
V
V
@ V
0
0
0
OD
OD
= 20mV
CC
= 200mV
ADM81xR/S/T/Z
20
20
20
= 3V
ADM81xL/M
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
30
30
30
50
50
50
I
DD
@ V
I
DD
70
70
70
CC
@ V
= 1V
85
85
85
CC
= 5.5V
100
100
100
120
120
120
Rev. F | Page 6 of 12
Figure 8. Power-Down RESET Delay vs. Temperature (ADM81xL/M)
1.007
1.006
1.005
1.004
1.003
1.002
1.002
1.001
1.000
0.999
0.998
0.997
0.996
0.995
900
800
700
600
500
400
300
200
100
10
9
8
7
6
5
4
3
2
1
0
0
–40
–40
Figure 7. Supply Current vs. Temperature (ADM81xL/M)
–40
Figure 9. RESET Threshold Deviation vs. Temperature
V
OD
–20
–20
–20
= 200mV
V
OD
0
0
0
= 125mV
20
20
20
V
I
OD
TEMPERATURE (°C)
TEMPERATURE (°C)
DD
I
I
TEMPERATURE (°C)
DD
DD
= 20mV
@ V
@ V
30
30
@ V
30
CC
CC
CC
= 5.5V
50
50
= 3V
50
= 1V
70
70
70
85
85
85
100
100
100
120
120
120