LM3905 - 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 LM122 series to operate in many different applications with a.

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 internal current limiting Internal regulated reference Timing period can be voltage controlled TTL compatible input and output Connection Diagrams Metal Can Package Dual-In-Line Package Dual-In-Line Package TL H 7768
  –6 Top View Order Number LM122H See NS Package Number H10C TL H 7768
  – 8 TL H 7768.