MC34161D ON Semiconductor, MC34161D Datasheet - Page 13

• 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: -

92 Vac to
The above circuit shows the MC34161 configured as an automatic line voltage selector. The IC controls the triac, enabling the circuit to function
as a fullwave voltage doubler or a fullwave bridge. Channel 1 senses the negative half cycles of the AC line voltage. If the line voltage is less
than150 V, the circuit will switch from bridge mode to voltage doubling mode after a preset time delay. The delay is controlled by the 100 kW resistor
and the 10 mF capacitor. If the line voltage is greater than 150 V, the circuit will immediately return to fullwave bridge mode.
276 Vac
Input
T
3.0A
MR506
4742
1N
10k
3W
Figure 26. Automatic AC Line Voltage Selector
+
1.6M
10k
47
100k
+
http://onsemi.com
10
1
7
2
3
+
+
1.27V
1.27V
+
-
+
-
13
2.54V
Reference
+
+
4
0.6V
2.8V
-
+
-
+
8
10k
6
5
228A6FP
MAC
1.2k
+
+
220
250V
220
250V
75k
75k
B+
RTN