what is the relationship of Vth and temperature ?

[lhlbluesky]

vth vs temperature

what is the relationship of Vth and T? someone says that is -1.5mV/degree, right?

when temperature increases, Vth bigger or smaller? pls.

 

[safwatonline]

vth versus temperature

smaller

 

[shashank_s_82]

Re: Vth vs T

VT decreases as temperature increases

I've attached 2 good papers on this

 

[lhlbluesky]

Vth vs T

thanks all, i learned that.

 

[ravirajdv]

Re: Vth vs T

Hi,
I guess, by Vth you meant threshold voltage. But if you meant thermal Voltage then, it is proportional to temperature.
Vth=kT/q, where k is Boltzmann's constant, T= absolute temperature and q is the charge, which is approx, 0.086 V/deg. C

Regards,
RDV

 

[poweric]

Vth vs T

VTH is decease as temp rise
juat as the Vbe

 

[lhlbluesky]

Vth vs T

thanks all.