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ADM691A Datasheet(PDF) 6 Page - Analog Devices

Part No. ADM691A
Description  Microprocessor Supervisory Circuits
Download  12 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADM691A Datasheet(HTML) 6 Page - Analog Devices

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ADM691A/ADM693A/ADM800L/M
–6–
REV. 0
VCC – V
0
5.0
0.5
1.0
1.5
2.0
2.5
3.0
10
0
7
2
1
9
8
6
5
4
3
3.5
4.0
4.5
VBATT = 2.8V
Figure 8. Battery Current vs. Input Supply Voltage
COSC – pF
100
10
0.1
10
1k
100
1
LONG WATCHDOG TIMEOUT PERIOD
SHORT WATCHDOG
TIMEOUT PERIOD
RESET ACTIVE
TIMEOUT PERIOD = >
Figure 9. Watchdog and Reset Timeout Period vs.
OSC IN Capacitor
TEMPERATURE –
°C
–50
125
–25
0
25
50
75
100
7.0
4.0
5.5
5.0
4.5
6.5
6.0
Figure 10. Chip Enable Propagation Delay vs.
Temperature
LOAD CAPACITANCE – pF
0
300
50
100
150
200
250
16
0
10
4
2
14
12
8
6
Figure 11. Chip Enable Propagation Delay vs.
Load Capacitance
TEMPERATURE –
°C
–50
90
–30
–10
10
30
50
70
230
170
200
220
210
190
180
Figure 12. Reset Timeout Relay vs. Temperature
TEMPERATURE –
°C
–50
130
–20
10
40
70
100
1200
0
600
1000
800
400
200
VCC = 5V, VBATT = 2.8V
SOURCING CURRENT
VCC = 0V, VBATT = 2.8V
SINKING CURRENT
Figure 13. RESET Output Resistance vs. Temperature


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