TL7702A, TL7705A, TL7709A, TL7712A, TL7715A
SUPPLY-VOLTAGE SUPERVISORS
SLVS028H – APRIL 1983 – REVISED MAY 2003
APPLICATION INFORMATION
5 V
µA7805
INPUT OUTPUT
4.7 kΩ
25 kΩ
8
V
CC
SENSE
System RESET
7
3
S
Input
G
5
Q1
2N3994
RESET
TL7705A
RESET
COMMON
6
1
D
CT
REF
GND
4
4.7 kΩ
C
C
C
T
I
O
0.1 µF
Figure 8. Eliminating Undefined States Using a P-Channel JFET
V
CC
10 kΩ
750 Ω
Q1
2N4036
8
2.7 kΩ
V
System RESET
CC
7
2
5
SENSE Input
SENSE
RESET
TL77xxA
6
1
RESIN
RESET
3
10 kΩ
1 kΩ
CT
REF
GND
4
C
T
0.1 µF
Figure 9. Eliminating Undefined States Using a pnp Transistor
8
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