SP690RCN SIPEX [Sipex Corporation], SP690RCN Datasheet - Page 10

• Manufacturer Part Number: SP690RCN
• Description: 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over
• Manufacturer: SIPEX [Sipex Corporation]

Figure 16A. SP805L RESET Response Time
Figure 17A. Power-Fail Comparator Response Time (fall)
Figure 18A. Power-Fail Comparator Response Time (rise)
SP690T/S/R DS/10
0V
2
1V / div
0V
1
3.1V
5V
2V
1.2V
1
T
1.3V
V
SP690T/S/R, 802/T/S/R, 804T/S/R, 805T/S/R Low Power Microprocessor Supervisory
CC
[
PFO
1.3V
500ns / div
500ns / div
10 s / div
T
1
T
PFI
PFI
PFO
1.2V
RESET
]
V
BATTERY
V
V
BATTERY
CC
= 5V
V
= 0
CC
= 5
= 0
10
Figure 16B. Circuit for the SP805 RESET Response
Time
Figure 17B. Circuit for the Power-Fail Comparator
Response Time (fall)
Figure 18B. Circuit for the Power-Fail Comparator
Response Time (rise)
T
V
V
A
+1.25V
CC
CC
GND
V
= +25 C
PFI
CC
= +5V
+1.25V
PFI
+5V
RESET
PFO
T
V
A
CC
= +25 C
© Copyright 2000 Sipex Corporation
PFO
+5V
= +5V
330pF
30pF
1K
V
30pF
CC
10K
1K