TLC3704 Datasheet, PDF (21/31 Pages) Texas Instruments – QUAD MICROPOWER LinCMOSE VOLTAGE COMPARATORS

TLC3704, TLC3704Q
QUAD MICROPOWER LinCMOS VOLTAGE COMPARATORS
SLCS117B – NOVEMBER 1986 – REVISED JANUARY 2002
APPLICATION INFORMATION
5V
12-V
Sense
V(UNREG)
(see Note A)
3.3 kΩ
1 kΩ
2.5 V
R1
R2
12 V
1/2 TLC3704
+
–
VCC
RESIN
REF
SENSE
TL7705A
RESET
CT
GND
5V
10 kΩ
To µP
Reset
1 µF
1/2 TLC3704
+
To µP Interrupt
Early Power Fail
–
CT
(see Note B)
Monitors 5 VDC Rail
Monitors 12 VDC Rail
Early Power Fail Warning
+ ^{NOTES: A.} V_(UNREG)
(R1 +R2)
2.5 _R2
B. The value of CT determines the time delay of reset.
Figure 26. Enhanced Supply Supervisor
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