MC33164D-3 ONSEMI [ON Semiconductor], MC33164D-3 Datasheet - Page 5

• Manufacturer Part Number: MC33164D-3
• Description: MICROPOWER UNDERVOLTAGE SENSING CIRCUITS
• Manufacturer: ONSEMI [ON Semiconductor]

4.0
3.0
2.0
1.0
8.0
32
24
16
0
0
0
0
T
T
A
Figure 12. Clamp Diode Forward Current
A
= 0°C
= 25°C
Figure 10. MC3X164−3 Reset Output
V
in
Saturation versus Sink Current
= 2.4 V
4.0
V
T
A
in
= 25°C
0.4
T
= 0 V
A
A time delayed reset can be accomplished with the addition of C
supply rise times (< 500 ns) it is recommended that the RCDLY time constant be greater than 5.0 ms. V
the microprocessor reset input threshold.
= 70°C
V
Supply
V
Power
F
Sink
, FORWARD VOLTAGE (V)
versus Voltage
, SINK CURRENT (mA)
8.0
0.8
T
A
12
Figure 14. Low Voltage Microprocessor Reset
= 70°C
T
A
MC34164, MC33164, NCV33164
Input
= 0°C
1.2 V
1.2
16
ref
GND
T
A
http://onsemi.com
= 25°C
1.6
20
5
Reset
5.0 V
4.0 V
90%
4.0
3.0
2.0
1.0
10
0
%
DLY
0
t
. For systems with extremely fast power
5.0V
4.0V
DLY
R
T
C
A
= R
T
DLY
V
A
= 0°C
in
Reset
Figure 11. MC3X164−5 Reset Output
= 25°C
CDLY
V
in
Reset
4.0
Saturation versus Sink Current
Ref
V
, Reset = 4 V
in
Figure 13. Reset Delay Time
In
T
A
= 70°C
(MC3X164−5 Shown)
I
Microprocessor
Sink
1 −
, SINK CURRENT (mA)
Circuit
8.0
Reset
43k
V
1
5.0 ms/DIV
th(MPU)
th(MPU)
V
in
is
12
T
A
= 70°C
T
V
R
T
A
A
in
L
= 25°C
= 25°C
= 43 k
= 5.0 V to 4.0 V
16
T
A
= 0°C
20