Q62702-G0080 データシートの表示（PDF） - Infineon Technologies

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Q62702-G0080

GaAs MMIC

Infineon Technologies 

Pulse Factor

10 1

Ptot max

Ptot DC

5

tp

D=

tp

T

T

D=

0.005

0.01

0.02

0.05

0.1

0.2

0.5

EHT08748

GaAs Components

CGY 196

10 0

10-6 10-5 10-4 10-3 10-2 10-1 s 100

tp

Ptot-max should not exceed the absolute maximum rating for the dissipated power

PPulse = “Pulse peak power” = 2 W

c) Reliability Considerations

This procedure yields the upper limit for the power dissipation for continuous wave (cw)

and pulse applications which corresponds to the maximum allowed channel

temperature. For best reliability keep the channel temperature low. The following formula

allows to track the individual contributions which determine the channel temperature.

TCh =

Channel

temperature

(= junction

temperature)

(PDiss/Pulse Factor ×

Power dissipated in the

chip, divided by the

applicable pulse factor

(= 1 for DC and CW). It

does not contain

decoupled RF-power

RthChS) +

Rth of device from

channel to soldering

point

TS

Temperature of

soldering point,

measured or

calculated

Data Sheet

5

2001-01-01

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