Circuit Connection:The IC is available in either an 8-pin round TO3-style can or an 8-pin mini-DIP package.
- Trigger input.
- Reset input.
- Control voltage.
- Threshhold input.
- +VCC. +5 to +15 volts in normal
2.The three resistors in the voltage divider all have the same value (5K in the bipolar version of this IC), so the comparator reference voltages are 1/3 and 2/3 of the supply voltage, whatever that may be. The control voltage input at pin 5 can directly affect this relationship, although most of the time this pin is unused.
3.The internal flip-flop changes state when the trigger input at pin 2 is pulled down below +VCC/3. When this occurs, the output (pin 3) changes state to +VCC and the discharge transistor (pin 7) is turned off. The trigger input can now return to +VCC; it will not affect the state of the IC.