LM3905 Datasheet (National Semiconductor)

LM3905, Precision Timers

The LM122 series are precision timers that offer great versatility with high accuracy They operate with unregulated supplies from 4 5V to 40V while maintaining constant timing periods from microseconds to hours Internal logic and regulator circuits complement the basic timing function enabling the L

LM3905 Features

* Y Y Y Y Y Y Y Y Y Y Immune to changes in trigger voltage during timing interval Timing periods from microseconds to hours Internal logic reversal Immune to power supply ripple during the timing interval Operates from 4 5V to 40V supplies Input protected to g 40V Floating transistor output with int