Datasheet

TLC3704, TLC3704M
QUAD MICROPOWER LinCMOS VOLTAGE COMPARATORS
SLCS117C − NOVEMBER 1986 − REVISED NOVEMBER 2009
21
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
1/2 TLC3704
To µP Interrupt
Early Power Fail
+
−
+
−
1 kΩ
3.3 kΩ
C
T
(see Note B)
1/2 TLC3704
10 kΩ
5 V
5 V
12-V
Sense
R2
R1
V
(UNREG)
(see Note A)
1 µF
12 V
RESIN
REF C
T
GND
RESET
SENSEV
CC
To µP
Reset
Monitors 5 VDC Rail
Monitors 12 VDC Rail
Early Power Fail Warning
TL7705A
2.5 V
NOTES: A.
V
(UNREG)
+ 2.5
(R1 +R2)
R2
B. The value of C
T
determines the time delay of reset.
Figure 26. Enhanced Supply Supervisor