Diode reverse characteristics

AN4021

4/10

Doc ID 022588 Rev 1

1.2

thermal coefficient

Equation 1

The “c” thermal coefficient represents the leakage current dependence with the junction

temperature. Each diode has its own coefficient that can be calculated using two points as

follows:

Equation 2

)

(

Re

Re

)

,

(

)

,

(

f

j

T

c

f

j

R

R

j

R

R

e

T

V

I

T

V

I

-

·

=

⎟

⎟

⎠

⎞

⎜

⎜

⎝

⎛

·

-

=

)

,

(

)

,

(

ln

1

1

Re

2

Re

1

Re

2

Re

f

j

R

R

f

j

R

R

f

j

f

j

T

V

I

T

V

I

T

T

c