Typical Performance Curves–ADM690–ADM695
5.00
2.80
V
T
= 5V
= +25°C
CC
V
V
T
= 0V
= +2.8V
= +25°C
A4
3.36 V
A
CC
BATT
100
90
4.95
4.90
4.85
2.79
2.78
A
SLOPE = 1.5Ω
SLOPE = 20Ω
10
2.77
2.76
0%
1V
1V
500ms
4.80
0
20
40
60
80
100
0
200
400
600
800
1000
I
– µA
I
– mA
OUT
OUT
Figure 10. Reset Output Voltage vs.
Supply Voltage
Figure 9. VOUT vs. IOUT Battery
Backup
Figure 8. VOUT vs. IOUT Norm al
Operation
4.70
1.303
53
V
= +5V
CC
V
= +5V
CC
4.68
4.66
1.302
1.301
52
51
POWER-UP
ADM690
ADM691
ADM694
ADM695
ADM690
ADM691
ADM692
4.64
4.62
1.300
1.299
50
49
ADM693
POWER-DOWN
20
40
60
80
100
120
20
40
60
80
100
120
20
40
60
80
100
120
TEMPERATURE – °C
TEMPERATURE –
°C
TEMPERATURE –
°C
Figure 13. Reset Voltage Threshold
vs. Tem perature
Figure 12. Reset Active Tim e vs.
Tem perature
Figure 11. PFI Input Threshold vs.
Tem perature
6
6
6
VCC = 5V
A = +25
VCC = 5V
5
V
T
= 5V
= +25°C
CC
5
4
5
T
°
C
TA = +25°C
A
4
4
+5V
3
2
3
2
3
2
VPFI
1.3V
PFO
V
10k
PFI
30pF
VPFI
PFO
1
0
1.3V
1
0
PFO
1
0
30pF
1.3V
30pF
1.35
1.25
0
1.35
1.25
1.35
1.25
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
0
10 20 30 40 50 60 70 80 90
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
TIME – µs
TIME – µs
TIME – µs
Figure 16. Power Fail Com parator
Response Tim e with Pull-Up Resistor
Figure 15. Power Fail Com parator
Response Tim e
Figure 14. Power Fail Com parator
Response Tim e
REV. A
–9–
ADI [ ADI ]
