AVR-Chat

You could use a P channel FET at that current level. An on resistance  
of 0.1 ohms will give you a voltage drop of 60mV at 600ma and a  
forward gate voltage of 5V should get a "logic level" device well  
turned on.

Jim

On Sep 2, 2010, at 8:05 PM, AMIT KAPOOR wrote:

> Hello Friends,
>
> Good Morning!...
>
> I need help/suggestion from you!
>
> Actually I have a device which communicates with microcontroller  
> using the
> serial communication. but sometimes this device stops  
> communicating.In this case
> , this device needs VCC reset( POWER RESET)..So what i want is to  
> reset this
> device from microcontroller  whenever it stops communicating  
> ( basically
> disconnecting the VCC power of this device by turning on some output  
> pin of
> microcontroller  and after 1 or 2 seconds again connecting it)...I  
> don't want to
> use relay logic..so any suggestions regarding the hardware  
> interfacing circuit
> between microcontroller and this device which stopd communicating  
> and need Power
> reset. Current requirement of this device is below 600 mA. and  
> voltage VCC is
> same as microcontroller ( +5V).
>
> Thanks a lot!,
>
> Best Regards,
> Kaps
>
> [Non-text portions of this message have been removed]
>
>
> 



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