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Re: Re[2]: [AVR-Chat] Power reset (VCC) of some device from MICROCONTROLLER OUTPUT PIN without using relay

2010-09-03 by Clark Martin

On Sep 2, 2010, at 10:51 PM, AMIT KAPOOR wrote:

> Hello Evgenii ,
> 
> Yes you are right! but actually  BSS138 which you mentioned doesn't have DIP 
> package  and i want to test on the breadboard ...I have L293 DC motor driver 
> chip with me now...can i use this chip for my purpose i.e. connecting the output 
> pin of L293 to the Device VCC of my device and reseting it (when required ) from 
> the microcontroller output pin ?....
> 
The L293 isn't a good choice, it has at least an NPN darlington transistor as a source driver so it is going to be dropping 1.5V or so.  Meaning you will get 3.5V to the circuit (or less).
>  
> 

Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting

"I'm a designated driver on the Information Super Highway"



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