8ETH06F datasheet(4/9 Pages) IRF

4 / 9 page

8ETH06, 8ETH06S, 8ETH06-1, 8ETH06FP

Bulletin PD-20746 rev. F 02/04

www.irf.com

Fig. 5 - Max. Thermal Impedance Z thJC Characteristics (FULLPACK)

t1, Rectangular Pulse Duration (Seconds)

Fig. 6 - Max. Allowable Case Temperature

Vs. Average Forward Current

Average Forward Current - IF(AV)(A)

Fig. 7 - Max. Allowable Case Temperature

Vs. Average Forward Current (FULLPACK)

Fig. 8 - Forward Power Loss Characteristics

Average Forward Current - IF(AV)(A)

Average Forward Current - IF(AV) (A)

(3) Formula used: T

C = TJ - (Pd + PdREV) x RthJC ;

Pd = Forward Power Loss =

F(AV) x VFM @ (IF(AV) / D)

(see Fig. 8);

REV = Inverse Power Loss = VR1 x IR (1 - D);

R @ VR1 = rated VR

120

130

140

150

160

170

180

Square wave (D = 0.50)

Rated Vr applied

see note (3)

468

RMS Limit

D = 0.01

D = 0.02

D = 0.05

D = 0.1

D = 0.2

D = 0.5

0.01

0.1

0.00001

0.0001

0.001

0.01

0.1

100

Single Pulse

(Thermal Resistance)

D = 0.50

D = 0.20

D = 0.10

D = 0.05

D = 0.02

D = 0.01

Notes:

1. Duty factor D = t1/ t2

2. Peak Tj = Pdm x ZthJC + Tc

100

120

140

160

180

02468

see note (3)

Square wave (D = 0.50)

Rated Vr applied

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