8ETU04PBF datasheet(5/7 Pages) VISHAY

Part #	8ETU04PBF

Description	Ultrafast Rectifier, 8 A FRED PtTM

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Manufacturer	VISHAY [Vishay Siliconix]

Direct Link	http://www.vishay.com

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5 / 7 page

Document Number: 94030

For technical questions, contact: diodes-tech@vishay.com

www.vishay.com

Revision: 08-Apr-08

5

8ETU04PbF

Ultrafast Rectifier,

8 A FRED PtTM

Vishay High Power Products

Fig. 9 - Reverse Recovery Parameter Test Circuit

Fig. 10 - Reverse Recovery Waveform and Definitions

IRFP250

D.U.T.

L = 70 µH

V

R = 200 V

0.01

Ω

G

D

S

dI

F/dt

adjust

Q

rr

0.5 I

RRM

dI

(rec)M/dt

0.75 I

RRM

I

RRM

t

rr

t

b

t

a

I

F

dI

F/dt

0

(1)

(2)

(3)

(4)

(5)

(1) dI

F/dt - rate of change of current

through zero crossing

(2) I

RRM - peak reverse recovery current

(3) t

rr - reverse recovery time measured

from zero crossing point of negative

going I

F to point where a line passing

through 0.75 I

RRM and 0.50 IRRM

extrapolated to zero current.

(4) Q

rr - area under curve defined by trr

and I

RRM

t

rr x IRRM

2

Q

rr =

(5) dI

(rec)M/dt - peak rate of change of

current during t

b portion of trr

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