MC34161D ON Semiconductor, MC34161D Datasheet - Page 11

• Manufacturer Part Number: MC34161D
• Description: IC MONITOR VOLTAGE UNIV 8SOIC
• Manufacturer: ON Semiconductor
• Type: Multi-Voltage Supervisorr

Specifications of MC34161D

• Number Of Voltages Monitored: 2
• Output: Open Drain or Open Collector
• Voltage - Threshold: Adjustable/Selectable
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Reset: -
• Reset Timeout: -

Input V
Input -V
Output
Voltage
Pins 5, 6
The above figure shows the MC34161 configured as a positive and negative overvoltage detector. As the input voltage increases from ground, the LED will turn
‘ON’ when either −V
As the input voltage decreases from the peak towards ground, the LED will turn ‘ON’ when either V
For known resistor values, the voltage trip points are:
Input V
The above figure shows the MC34161 configured as a positive and negative undervoltage detector. As the input voltage decreases toward ground, the LED will
turn ‘ON’ when either V
detector. As the input voltage increases from the ground, the LED will turn ‘ON’ when either V
For known resistor values, the voltage trip points are:
Input -V
Output
Voltage
Pins 5, 6
V
V
1
2
V
V
+
+
1
2
S2
S1
+ (V
+ V
S1
R
R
R
R
S2
3
4
3
4
GND
GND
V
GND
GND
(V
(V
th1
V
th1
CC
V
V
V
V
V
V
V
V
CC
th1
th1
2
1
3
4
4
3
1
2
* V
R
R
* V
* V
4
3
) 1
S1
H1
ref
H1
)
exceeds V
S1
) ) V
* V
R
R
falls below V
4
3
) 1
ref
th1
) ) V
2
, or V
th1
V
V
1
S2
, or −V
3
4
* V
Figure 23. Positive and Negative Undervoltage Detector
Figure 22. Positive and Negative Overvoltage Detector
+
+
exceeds V
H1
R
R
R
R
S2
1
2
1
2
V
(V
(V
V
V
V
Hys1
falls below V
Hys1
Hys2
Hys2
th
th
LED `ON'
LED `ON'
* V
* V
4
. With the dashed line output connection, the circuit becomes a positive and negative undervoltage detector.
V
V
3
4
ref
H2
+ (V
+ V
) ) V
* V
3
th2
. With the dashed line output connection, the circuit becomes a positive and negative overvoltage
th2
ref
th2
) ) V
* V
R
R
http://onsemi.com
2
1
) 1
H2
th2
)
* V
R
R
2
1
11
) 1
H2
-V
V
-V
S2
S1
S2
V
S1
S1
R
R
2
1
exceeds V
R2
R
R
S2
R
4
R
R
3
1
4
falls below V
3
For a specific trip voltage, the required resistor ratio is:
For a specific trip voltage, the required resistor ratio is:
R
R
R
R
R
R
R
R
3
4
3
4
4
3
4
3
2
1
7
2
3
+
+
1
7
2
3
+
+
, or −V
(V
(V
V
V
+
+
+
+
(V
(V
V
th1
th1
th1
th1
2
1
2
1.27V
1.27V
1.27V
1.27V
3
S1
+
-
+
-
V
* V
* V
+
-
+
-
* 1
* V
, or −V
* V
* V
1
exceeds V
th1
th1
H1
ref
H1
)
S1
)
) V
* 1
Reference
Reference
+
+
* V
+
+
4
4
2.54V
2.54V
falls below V
2.8V
0.6V
H1
2.8V
0.6V
-
+
-
+
ref
-
+
-
+
1
8
.
V
8
)
V
)
CC
CC
R
R
R
R
1
2
1
2
R
R
R
R
+
+
1
2
1
2
1
.
V
V
+
+
V
V
th2
th2
4
3
V
V
) V
* V
V
* V
* V
th2
th2
4
6
5
6
5
V
* 1
* V
H2
th2
H2
ref
3
* V
* V
H2
th2
* 1
ref