CGY98(2001) 查看數據表（PDF） - Infineon Technologies
零件编号
产品描述 (功能)
生产厂家
CGY98 Datasheet PDF : 15 Pages
| |||
GaAs Components
CGY 98
Determination of Permissible Total Power Dissipation for Continuous and Pulse
Operation
The dissipated power is the power which remains in the chip and heats the device. It
does not contain RF signals which are coupled out consistently.
a) Continuous Wave / DC Operation
For the determination of the permissible total power dissipation Ptot-DC from the diagram
below it is necessary to obtain the temperature of the soldering point TS first. There are
two cases:
• When RthSA (soldering point to ambient) is not known: Measure TS with a temperature
sensor at the leads were the heat is transferred from the device to the board
(normally at the widest source or ground lead for GaAs). Use a small sensor of low
heat transport, for example a thermoelement (< 1 mm) with thin wires or a
temperature indicating paper while the device is operating.
• When RthSA is already known:
TS = PDiss × RthSA + TA
Permissible Total Power Dissipation in DC Operation
2400
mW
Ptot DC
2000
EHT09188
1800
1600
1400
1200
1000
800
600
400
200
0
0
40 80 120 ˚C 180
TS
Temperature of soldering point, TS
Data Sheet
11
2001-01-01
Share Link: 