ADM693A Analog Devices, ADM693A Datasheet - Page 6
ADM693A
Manufacturer Part Number
ADM693A
Description
Manufacturer
Analog Devices
Datasheet
1.ADM691A.pdf
(12 pages)
Specifications of ADM693A
Batt-backup-flg
Yes
Product Description
µP Supervisor w/ Backup Battery Switchover, Watchdog, Pwr Fail Warning, 4.4V Threshold, 250mA Iout
Reset Threshold (v)
4.4
Min Reset Timeout (ms)
140 (Adjustable)
Reset Output-stage
Active-High/Open-Drain,Active-Low/Push-Pull
Backup-battery Switch
Yes
Chip Enable Gating
Yes
Typ Watchdog Timeout (ms)
100,1600,adj.
Package
DIP,SOIC
Us Price 1000-4999
n/a
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Manufacturer
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ADM691A/ADM693A/ADM800L/M
Figure 8. Battery Current vs. Input Supply Voltage
Figure 9. Watchdog and Reset Timeout Period vs.
OSC IN Capacitor
Figure 10. Chip Enable Propagation Delay vs.
Temperature
100
0.1
7.0
6.5
6.0
5.5
5.0
4.5
4.0
10
10
9
8
7
6
5
4
3
2
1
0
1
–50
10
0
0.5
TIMEOUT PERIOD = >
SHORT WATCHDOG
–25
TIMEOUT PERIOD
1.0
RESET ACTIVE
LONG WATCHDOG TIMEOUT PERIOD
1.5
0
TEMPERATURE – C
2.0
25
C
V
OSC
CC
100
2.5
– pF
– V
50
3.0
V
BATT
3.5
75
= 2.8V
4.0
100
4.5
125
5.0
1k
–6–
Figure 13. RESET Output Resistance vs. Temperature
Figure 12. Reset Timeout Relay vs. Temperature
Figure 11. Chip Enable Propagation Delay vs.
Load Capacitance
1200
1000
230
220
210
200
190
180
170
800
600
400
200
16
14
12
10
8
6
4
2
0
0
–50
–50
0
–30
50
–20
–10
LOAD CAPACITANCE – pF
V
V
SOURCING CURRENT
100
CC
CC
SINKING CURRENT
10
TEMPERATURE – C
TEMPERATURE – C
= 5V, V
= 0V, V
10
150
BATT
BATT
40
= 2.8V
= 2.8V
30
200
70
50
250
100
70
300
130
90
REV. 0