©2002 Fairchild Semiconductor Corporation

Rev. A1, April 2002

Peak Diode Recovery dv/dt Test Circuit & Waveforms (P-Channel)

DUT

V

DS

+

_

Driver

Compliment of DUT

(N-Channel)

V

GS

• dv/dt controlled by R

G

•I

V

DD

L

I

SD

10V

( Driver )

( DUT )

( DUT )

V

DD

Body Diode

Forward Voltage Drop

V

SD

I

Body Diode Reverse Current

I

RM

Body Diode Recovery dv/dt

di/dt

D =

Gate Pulse Width

Gate Pulse Period

--------------------------

DUT

V

DS

+

_

Driver

Compliment of DUT

(N-Channel)

V

GS

• dv/dt controlled by R

G

•I

V

DD

L

L

I

SD

10V

( Driver )

( DUT )

( DUT )

V

DD

Body Diode

Forward Voltage Drop

V

SD

I

Body Diode Reverse Current

I

RM

Body Diode Recovery dv/dt

di/dt

D =

Gate Pulse Width

Gate Pulse Period

--------------------------

D =

Gate Pulse Width

Gate Pulse Period

--------------------------