LM2905N数据手册TI中文资料规格书

描述 Description

General Description
The LM122 series are precision timers that offer great ver satility 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 minimum of external components.

特性 Features

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 g40V
Floating transistor output with internal current limiting
Internal regulated reference
Timing period can be voltage controlled
TTL compatible input and output