MC34160_06 Datasheet, PDF (7/10 Pages) ON Semiconductor – 100 mA, 5.0 V Voltage Regulator and Supervisory Circuit for Microprocessors

MC34160, MC33160
Point A
Pin 6
Pin 8
V_CC
V_in
C_in
14
Chip
Disable
15
R₁
9
2.6 V
2.6 V
10
2
R_in
AC
Line
A
1
+
2.6 V
Reference
Thermal
Shutdown
−
+
+
0.913 R
11
+
.01 R −
7
Reset
R
Power
10
+ ^Warning
−
8
I_H
I_H On/Off
+
Uncommitted
Comparator
+
−
6
4, 5, 12, 13
C_O ^VO
MPU Reset
V_ref
Line Loss Output
R_DLY
t_DLY ≈ R_DLY C_DLY ln
I_H R_DLY − V_O
V_ref + I_H R₁ − V_O + I_H R_DLY
C_DLY
+
−
=
Sink Only
Positive True Logic
Figure 12. Line Loss Detector Application
V_CC
V_in
C_in
14
R₁
Chip
Disable
15
R₂
9
R_H 10
2
1
+
2.6 V
Reference
Thermal
Shutdown
−
+
+
0.913 R
11
+
.01 R −
7
Reset
R
Power
16
+ ^Warning
−
8
I_H
I_H On/Off
+
Uncommitted
+ ^Comparator
−
6
V_O
C_O
V_ref
R_DLY
MPU Reset
3.6 k
6.2 k
4, 5, 12, 13
t_DLY  R_DLY C_DLY
C_DLY
+
−
=
Sink Only
Positive True Logic
Figure 13. Time Delayed Microprocessor Reset
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