ADM8690(1997) Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
componentes Descripción
Fabricante
ADM8690 Datasheet PDF : 16 Pages
| |||
5.00
4.99
4.98
4.97
4.96
4.95
4.94
10 20 30 40 50 60 70 80 90 100
IOUT – mA
Figure 8. VOUT vs. IOUT Normal
Operation
Typical Performance Curves–ADM8690–ADM8695
2.8
2.798
2.796
2.794
2.792
2.79
2.788
2.786
150 250 350 450 550 650 750 850 950 1050
IOUT – µA
Figure 9. VOUT vs. IOUT Battery
Backup
A4
100
90
3.36 V
10
0%
1V
1V
500ms
Figure 10. Reset Output Voltage vs
Supply Voltage
1.315
1.31
1.305
1.3
1.295
1.29
1.285
1.28
–60 –30 0
30 60 90 120
TEMPERATURE – °C
Figure 11. PFI Input Threshold vs.
Temperature
53
VCC = +5V
52
51
ADM8690
50
ADM8691
ADM8692
ADM8693
49
20
40
60
80
100 120
TEMPERATURE – °C
Figure 12. Reset Active Time vs.
Temperature
4.69
4.67
VCC = +5V
4.65
4.63
4.61
4.59
4.57
4.55
–60 –30 0
30 60 90 120
TEMPERATURE – °C
Figure 13. Reset Voltage Threshold
vs. Temperature
6
5
VCC = 5V
TA = +25°C
4
3
VPFI
PFO
2
1.3V
30pF
1
0
1.35
1.25
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
TIME – µs
Figure 14. Power Fail Comparator
Response Time
6
5
VCC = 5V
TA = +25°C
4
3
2
VPFI
1
1.3V
0
PFO
30pF
1.35
1.25
0 10 20 30 40 50 60 70 80 90
TIME – µs
Figure 15. Power Fail Comparator
Response Time
6
5
VCC = 5V
TA = +25°C
4
3
2
1
VPFI
0
1.3V
PFO
+5V
10kΩ
30pF
1.35
1.25
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
TIME – µs
Figure 16. Power Fail Comparator
Response Time with Pull-Up Resistor
REV. 0
–9–
Share Link: 